Anna university Question Papers

Software engineering-software engineering question papers-anna university software engineering question papers-cs338 software engineering

noreply@blogger.com (vijaya kumar) — Sat, 09 Mar 2013 16:15:00 +0000

PART – A (10 x 2 = 20 Marks)

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1. Define the term software engineering?
2. Name the different approaches to software sizing problems.
3. Define the terms cardinality and modality.
4. What are the properties to be specified in architectural design.
5. What are the factors to be considered for computing function points?
6. Give the definition software reliability and availability.
7. Give any two differences between white box and black box testing.
8. What do we need version control.
9. Why do meant by sensitivity testing?
10. Write any four features and contents of Case repository.

PART – B (5 x 16 = 80 Marks)

11.a)i) Explain the spiral model with neat diagram. (8)
ii) What are the approaches for software prototyping? Describe in detail. (8)

12.a)i) What is data modeling? Identify the data objects with attributes used in Employee Information systems. Draw the ER diagram neatly. (8)
ii) Explain modularity in detail (8)

OR

12.b)i) Explain cohesion and coupling in with necessary diagrams. (10)
ii) List out design heuristics for effective modular design (6)
13.a)i) Compute the function point value for a project with the following information domain characteristics.
Number of user inputs 32
Number of outputs 60
Number of inquiries 24
Number of files 8
Number of external interfaces 2
Assume that all complexity adjustment values are average (8)
ii) What are direct and indirect measures? Explain size-oriented metrics in detail. (8)

OR

13.b)i) Explain formal technical review in detail. (8)
ii) Write notes on ISO 9000 quality standards. (8)
14.a)i) Write a procedure to find the sum of Fibonacci series up to N. Draw the flow graph and find cyclomatic complexity. Derive all possible test cases. (16)
OR
14.b)i) Write in detail about system testing (8)
ii) Elaborate the types of maintenance (8)

15.a)i) What is CASE repository? Write about any 5 CASE tools. (10)
ii) What are the building blocks of CASE tools. (6)
OR
15.b) What are the tasks in SCM process? Explain each of them. (16)

IMPORTANT QUESTIONS IN USER INTERFACE DESIGN-IT2024 IT 2024 subject for NOV/DEC 2012 AU ANNA UNIVERSITY EXAMINATIONS FOR FINAL YEAR 7th semester CSE Students

noreply@blogger.com (vijaya kumar) — Mon, 17 Dec 2012 07:47:00 +0000

Important Questions in User Interface Design IT2024 IT 2024 subject for NOV/DEC 2012 AU ANNA UNIVERSITY EXAMINATIONS FOR FINAL YEAR 7th semester CSE Students

Unit-1

SECTION-1

1. Characteristics of Internet Vs Intranet - 8 Marks

2. Compare Printed Pages Vs Web Pages - 8 Marks

3. Need for Human Computer Interface - 8 Marks

4. Direct manipulation graphical system with example. - 8 Marks

5. Characteristics of GUI. - 16 Marks

6. Characteristics and Principles of UID - 16 Marks

SECTION-2

1. Compare GUI and Web Interface - 16 Marks

2. Characteristics and Principles involved in web user interface design - 16 Marks

3. Steps to be followed for creating an effective web user interface.

UNIT-2

SECTION-1

1. Impact of Human characteristics in design - 16 Marks

2. Requirement analysis. Direct method and indirect methods of business req analysis. - 16 Marks

3. Obstacles faced in UID? How is it improved by the designers? - 16 Marks

SECTION-2

1. Detailed note on graphical menu's. -16 Marks

2. Requirement analysis. Direct and indirect methods -16 Marks

3. Explain the concept of organizing screen display elements clearly and meaningfully. -16 Marks

UNIT-3

SECTION-1

1. Write in detail about types of windows -16 Marks

2. Components and presentation styles of windows - 16 Marks

SECTION-2

1. Detail about presentation controls - 16 Marks

2. Screen based controls used in web interface. -16 Marks

3. Selection and combination controls -16 Marks

UNIT-4

SECTION-1

1. Discuss the guidelines to be followed to provide text for web pages. -16 Marks

2. Accessibility -16 Marks

3. Guidance and Assistance -16 Marks

4. Internationalization and its issues - 16 Marks

SECTION-2

1. Detailed note on multimedia in UID -16 Marks

2. Accessibility -16 Marks

3. Icon Design guidelines -16 Marks

UNIT-5

SECTION-1

1. Prototypes -16 Marks

2. Usability Test and its types -16 Marks

3. Elaborate on need and types of text. -16 Marks

SECTION-2

1. Hypermedia -8 Marks

2. Test and stages involved in test -16 Marks

3. Information Search -8 Marks

ENGINEERING GRAPHICS-GE2111 ANNA UNIVERSITY QUESTION BANK-GE2111 . 185101 Engineering Graphics - PREVIOUS YEAR QUESTION PAPERS-185101(GE2111) Engineering Graphics — QUESTION BANk

noreply@blogger.com (vijaya kumar) — Sun, 02 Sep 2012 07:16:00 +0000

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011

Common to All B.E./B.Tech.

First Semester

185101 — ENGINEERING GRAPHICS

(REGULATION 2010)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

(5 X20 = 100 marks)

1. (a) Construct an ellipse when the distance of its focus from its directrix is equal to 50 mm and the eccentricity is 2/3. Also draw a tangent and a normal to the ellipse.

(b) Make free hand sketches of the front, top and left side view of the object
shown in Fib. Q 1(b).

Fib. Q 1(b)
2. (a) A Line AB has its end A 15 mm above H.P and 20 mm in front of V.P. The end B is 60 mm above H.P. and the line is inclined at 30° to H.P. The distance between the end projectors of the line is 55 mm. Draw the projections and find its inclination with V.P.

(b) A regular hexagonal lamina of 40 mm side is resting on one of its corner on H.P. Its surface is inclined at 45° to H.P. The plan of the diagonal through the corner which is on H.P. makes an angle of 45° with XY. Draw its projections.
3. (a) A hexagonal prism of side of base 25 mm and axis 60 mm rests on a corner of its base in H.P. with the axis of the prism inclined at 40° to H.P. and parallel to V.P. Draw its projections.

(b) A pentagonal pyramid of base edge 25 mm and axis length 60 mm rests on one base side on HP such that the highest base corner is 20 mm above HP. Its axis is parallel to VP. Draw its top and front views.
4. (a) A tetrahedron of 60 mm long edges rests with one of its face on H.P. and an edge is perpendicular to V.P. A section plane perpendicular to V.P cuts the tetrahedron such that the true shape of section is an isosceles triangle of base 50 mm and altitude 36 mm. Draw the front view, sectional top view and the true shape of the section. Also find the inclination of the section plane.

(b) A vertical cylinder of diameter 50 mm and height 80 mm is drilled by a hole of diameter 30 mm such that the axis of the hole is perpendicular toV.P. and parallel to H.P. Draw the lateral surface development of the solid.
5. (a) A hexagonal prism of base edge, 20 mm and height 60 mm rests on the H.P. on its base with two of its rectangular faces parallel to V.P. It is cut by a plane inclined at 30° to H.P cutting the axis of the prism at a height of 45 mm from its base. Draw the isometric view of the truncated prism.

(b) A square prism of 55 mm edge of base and 70 mm height is placed on the ground behind the PP with its axis vertical and one of the edges of the base receding to the left at an angle of 40° to the PP. The nearest vertical edge of the solid is 20 mm behind PP and 25 mm to the left of the observer who is at a distance of 120 mm in front of PP. The height of the observer above the ground is 100 mm. Draw the perspective view of the prism.

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CE2306-Design of RC Elements Anna University Question bank,Question Paper for civil engineering

noreply@blogger.com (vijaya kumar) — Sun, 02 Sep 2012 07:03:00 +0000

CE2306 Design of RC Elements Anna University Question bank

PART-A
UNIT – I
1. Distinguish between one –way and two way slabs.
2. Explain the terms ‘balanced’, ‘over reinforced’ and ‘under reinforced’ sections in bending
3. Discuss the different limit state to be considered in reinforced concrete design?
4. Why is it necessary to provide transverse reinforcement in a one way slab?
5. What are the three basic methods using factor of safety to achieve safe workable structures?
6. Explain maximum depth of neutral axis.
7. Find the depth of neutral axis in terms of ‘d’ for a balanced section using Fe 415 steel, in limit state method.
8. What is the difference in the design of one way slab and two way slabs?

UNIT – II

1. What are the advantages of limit state method over working stress and ultimate load methods?
2. How do you find the moment of resistance of a beam section?
3. Discuss the merits of working stress method?
4. What is modular ratio? Determine the modular ratio at M20 grade concrete.
5. What do you understand by limit state of collapse?
6. Draw stress-strain curve for various grades of steel.
7. State the assumptions made in working stress method.
8. What is modular ratio? Determine the modular ratio at M25 grade concrete.

UNIT – III
1. What are the types of reinforcements used to resist shear?
2. Explain the difference between primary and secondary torsion. Give two examples each.
3. Under what circumstances are doubly reinforced beams used?
4. Reinforced concrete slab are generally safe in shear and do not require shear reinforcement? Why?
5. What is modular ratio?
6. Mention the difference in design principles for L Beam and T Beam.
7. When shear reinforcement is necessary in a beam
8. What is bond stress? Write an expression for it.

UNIT IV
1 What is the minimum and maximum percentage of steel allowed in R.C.Column? Explain why it is necessary to specify the minimum and maximum percentage.
2 Give example of columns that are in practice subjected to unaxial and biaxial bending.
3 Explain (a) Equilibrium torsion (b) Compatibility torsion
4 How do you classify a column as long?
5 What will be minimum and maximum area of tension reinforcement in a beam?
6 How shear reinforcement improves the strength of beam?
7 How do you classify a column as short or long?
8 Write the procedure for the design of an axially loaded short column.

Unit – V

1. Sketch the placement of steel in rectangular footing with a non-central load.
2. What are the situations in which combined footings are preferred over isolated footings?
3. Draw a neat sketch of a masonry footing.
4. What is slenderness ratio for a masonry wall? State the maximum values?
5. Compare the behavior of tied and spirally reinforced column.
6. How do you classify one-way footing and two-way footing in foundation?
7. Under what circumstances a trapezoidal footing become necessary?

PART-B

UNIT - I
1. A singly reinforced concrete beam is of width 450mm and effective depth 715mm. It is reinforced with 8Nos.20mm mild steel bars. Assuming M20 concrete, determine its moment of resistance according to the working stress method. Determine also the stress in steel when the beam is subjected to the above moment.
2. Determine the reinforcement for a T beam with flange width = 1500mm, web width = 300mm, thickness of slab = 100mm, effective depth 735mm, to carry a moment of 380kNm due to characteristic loads. Use M25 concrete and Fe 415 steel. Using Working Stress Design.
3. A singly reinforced concrete beam is of width 400mm and effective depth 615mm. It is reinforced with 8Nos.20mm mild steel bars. Assuming M25 concrete, determine its moment of resistance according to the working stress method. Determine also the stress in steel when the beam is subjected to the above moment.
4. Design a rectangular slab supported on its all four edges (600mm thick) over a classroom of size 4.8m x6.2m. Two adjacent edges of the slab are discontinuous and the remaining two edges are continuous. A finishing surface of cement concrete of 20mm shall be provided over the slab. The slab shall be used as classroom. M20 grade of concrete and HYSD bars shall be used. The unit weight of finishing surface concrete is 24KN/m3.
5. Design a rectangular beam section subjected to an ultimate moment of 120kNm. Use concrete M20 and steel Fe415. Adopt limit state method.

UNIT II
1. A rectangular beam has b=200mm, d=400mm if steel used is Fe 415 and grade of concrete is M25. Find the steel required to carry a factored moment of 12kNm.
2. Design of roof slab for an interior panel of size 5mx6m. Live load is 5.0KN/m2. Use M30 Concrete and Fe 415 Steel.
3. Design a simply supported R.C.C.SLAB for a roof of a hall 4mx10m (inside dimensions) with 230mm walls all around. Assume a live load of 4kN/m2 and finish 1KN/m2.Use grade 25 concrete and Fe 415 steel.
4. A T beam continuous over several supports has to carry a factored negative support moment of 1000kNm. Determine the area of steel at supports if bW = 400MM, bfy =1600mm, Df = 100mm, D=610mm, d’ = 60mm, fck = 30N/mm2, f = 415 N/mm2.
5. A doubly reinforced concrete beam is 250mm wide and 510mm depth the center of tensile steel reinforcement. The compression reinforcement consists of 4 Nos. of 18mm dia bars placed at an effective cover of 40mm from the compression edge of the beam. The tensile reinforcement consists of 4Nos. of 20mm diameter bar. If the beam section is subjected to a BM of 85kNm, calculate the stresses in concrete and tension steel.
6. Design a smallest concrete section of a RC beam to resist an ultimate moment of 62kNm, assuming width 230mm, concrete grade M20 and HYSD bars of grade Fe415.
7. A rectangular beam of width 300mm and effective depth 500mm reinforced with 4 bars of 12mm diameter. Find the moment of resistance and stresses in the top compression fiber of concrete and tension steel. Use concrete M20 and steel Fe415. A dopt working stress method.
8. Design the interior span of a continuous one way slab for an office floor continuous over tee beams spaced at 3 meters. Live load = 4kN/m, Floor finish = 1kN/m2.Use concrete M20 and steel Fe415. Adopt limit state method. Sketch the steel reinforcement.

UNIT – III
1. A rectangular beam width b=350mm and d=550mm has a factored shear of 400kN at the critical section near the support. The steel at the tension side of the section consists of four 32mm bars which are continued to support. Assuming fck=25 and fy=415(N/mm2) design vertical stirrups for the section.
2. A reinforced concrete rectangular beam has a breadth of 350mm and effective depth of 800mm. It has a factored shear of 105kN at section XX. Assuming that fck=25, fy=415(N/mm2) and percentage of tensile steel at that section is 0.5percent, determine the torsional moment the section can resist if no additional reinforcement for torsion is provided. Workout the problem according to IS456 principles of design for torsion.
3. A simply supported beam is 5m in span and carries a characteristic load at 75kN/m. If 6Nos. of 20mm bras are continued into the supports. Check the development length at the supports assuming grade M20 concrete and Fe415steel.
4. A rectangular RCC beam is 400x900mm in size. Assuming the use of grade M25 concrete and Fe415 steel, determine the maximum ultimate torsional moment at the section can take it.
(i) No torsion reinforcement is provided and
(ii) Maximum torsion reinforcement is provided.

5. A rectangular beam width b = 250mm and effective depth 500mm reinforced with 4 bars of 20mm diameter. Determine the shear reinforcement required to resist a shear force of 150kN. Use concrete M20 and steel Fe415.

6. Design a rectangular beam section of width 250mm and effective depth 500mm, subjected to an ultimate moment of 160kNm, ultimate shear force of 30kN and ultimate torsional moment of 10kNm. Use concrete M20 and steel 415.

7. A RC beam 300x450mm in cross section in reinforced with 3 Nos. 20mm diameter of grade Fe250, with an effective cover of 50mm. The ultimate shear at the section of 138kn.Design the shear reinforcement (i)Using only vertical strips without bending any bar for resisting. (ii) Bending 1 bar dia 20mm at 45 degree to resist shear at the section. Assume concrete of grade M20.

8. A reinforced concrete beam 500mm deep and 230mm wide is reinforced with 8Nos.20mm diameter bars at mid span to carry a UDL of 22.5kn/m (inclusive of its own weight) over simple span of 8m. Assuming concrete grade M20, steel grade Fe415, load factor 1.5 and width of support 230mm (i) determine the minimum development length required for 20mm diameter bar to develop full strength (ii) apply check for flexural development length at support assuming all bar to continue at support (iii) determine the minimum number of bars required at support for development length of flexure.

UNIT – IV

1. A rectangular column of effective height of 4m is subjected to a characteristics axial load of 800kN and bending moment of 100kNm about the major axis of the n. Design a suitable section for the column so that the width should not exceed 400mm. Use the minimum percentage of longitudinal steel. Assume fy=415N/mm2 and fck=20N/mm2.

2. An R.C.Column 500x400mm is subjected to an axial ultimate load of 2500kN and bent in single curvature about the minor axis with My(top)=90knm and My(bottom)=120knm as ultimate moments. If L0=7.2m and Le=5.75m on both axes, calculate the design moments for the column.

3. Design the reinforcement in a spiral column of 400mm diameter subjected to a factored load of 1500kN.The column has an supported length of 3.4m and is braced against side way. Use M20 concrete and Fe415 steel.

4. A column 300x400mm has an unsupported length of 3m and effective length of 3.6m.If it is subjected to pu=1100kNm and Mu=230kNm about the major axis, determine the longitudinal steel using fck=25N/mm2.

5. Calculate the ultimate strength in axial compression of column 400mm in diameter and reinforced with 8Nos. of 20mm dia. of grade Fe250 when the column in helically reinforced by 8mm dia at (i) 60mm pitch, (ii) 30mm pitch. Assume concrete of grade M20. Assume clear cover equal to 40mm.

6. Design an axially loaded tied column 400mmx400mm pinned at both ends with an unsupported length of 3m for carrying a factored load of 2300kN.Use M20 concrete and Fe415 steel.

7. Design a circular column with helical reinforcement of 400mm diameter and 4m in length to carry factored load of 1000kN.The column is hinged at both ends. Use concrete M25 and steel Fe415.

8. A column 300mmx400mm has an unsupported length of 4m and fixed at both ends. It is subjected to a factored load of 1000KN and an ultimate moment of 200kNm about the major axis. Determine the longitudinal reinforcement and lateral ties. Use concrete M25 and steel Fe415 d’=60mm.

UNIT – V
1. A rectangular column 300mmx400mm reinforced with 20mm diameter bars carries a load of 1400kN. Design a suitable footing for the column. The safe bearing capacity of the soil is 200kN/m2.Use concrete M20 and steel Fe415.

2. Design a combined rectangular footing for two columns spaced at 5 centers. The first column 400mmx400mm carries a load of 1200kN and the second column 450mmx450mm carries a load of 1800kn at service state. Weight of Soil = 20kN/m2, angle of repose=300 and safe bearing capacity of soil = 150kN/m2. Use concrete M20 and steel Fe415.

3. Design a interior wall of a single storied workshop of height 5.4m surrounding a RCC roof. The bottom of the wall rests over a foundation block. Assume roof load equal to 45kN/m. A pier provided at a spacing of 3.6m along length of wall.

4. Design a compound wall of height 1.8m to the top of 100mm thick coping. Assume wind pressure is equal to 1kN/m2and is UDL. The safe bearing pressure of soil is 120kN/m2.

5. A solid footing has to transfer a dead load of 1000kn and an imposed load of 400kn from a square column 400mmx400mm. Assuming fck=20N/mm2 and fy=415N/mm2 and safe bearing capacity to be 200KN/m2, Design the footing.

6. Design a combined rectangular footing for two columns spaced at 500cm centers. The first column 300mmx300mm carried load of 1000kn.and second column 300mmx300mm carries a load of 1500kn at service state. Weight of Soil = 20kN/m2, angle of repose=300 and safe bearing capacity of soil = 150kN/m2. Use concrete M25 and steel Fe415.

7. A solid footing has to transfer a dead load of 1000kN and an imposed load of 400kN from a square column 400x400mm (with 16mm bars.) Assuming fy=415 and fck=20N/mm2 and safe bearing capacity to be 200kN/m2. Design the footing.

8. Design a plain concrete footing for a 450mm wall carrying 300kN per meter length. Assume grade 20 concrete and the bearing capacity of soil to be 200kN/m2.

LIC EC 2254 LINEAR INTEGRATED CIRCUITS ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER-ANNA UNIVERSITY FOR 2 YEAR SEMESTER FOURTH SEMESTER ECE STUDENTS-EC 2254 LINEAR INTEGRATED CIRCUITS(LIC) ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER-IMPORTANT QUESTIONS, 2 MARKS AND 16 MARKS QUESTIONS FOR ECE DEPARTMENT

noreply@blogger.com (vijaya kumar) — Wed, 29 Aug 2012 12:34:00 +0000

EC2254 — LINEAR INTEGRATED CIRCUITS

(Regulation 2008)

PART A — (10 × 2 = 20 Marks)

1. What is an integrated circuit?

2. What is current mirror?

3. Give the schematic of op-amp based current to voltage converter.

4. Draw the circuit diagram of differentiator and give its output equation.

5. What is a VCO?

6. Draw the relation between the capture ranges and lock range in a PLL.

7. Define resolution of a data converter.

8. Give the advantages of integrating type ADC.

9. Draw the internal circuit for audio power amplifier.

10. What are the three different wave forms generated by ICL8038?

PART B — (5 × 16 = 80 Marks)

11. (a) (i) Define CMRR. Draw the circuit of an Op-amp differential amplifier

and give the expression for CMRR. (8)

(ii) Define Slew Rate. Explain the cause of slew rate and derive an

expression for Slew rate for an op-amp voltage follower. (8)

(b) Briefly explain the various processes involved in fabricating monolithic

IC which integrates bipolar transistor, diode, capacitor and resistor. (16)

12. (a) (i) Design a first order Low-pass filter for cut-off frequency of 2 KHz

and pass-band gain of 2. (8)

(ii) Explain a positive clipper circuit using an Op-amp and a diode with

neat diagrams. (8)

(b) (i) Design a circuit to implement 2 1 4 3 0 2 25 . 1 273 . 0 545 . 0 V V V V V − − + = .

(8)

(ii) Draw and explain a simple Op-amp differentiator. Mention its

limitations. Explain with a neat diagram how it can be overcome in

a practical differentiator. Design an Op-amp differentiator that will

differentiate an input signal with maximum frequency

Hz 100 fmax = . (8)

13. (a) (i) With a neat diagram explain the variable transconductance

technique in analog multiplier and give its output equation. (8)

(ii) Briefly explain the working of voltage controlled oscillator. (8)

(b) What are important building block of phase locked loop ( PLL) explain its

Working? (16)

14. (a) (i) Explain the working of R-2R ladder DAC. (8)

(ii) Explain the working of success approximation ADC. (8)

(b) (i) A dual slope ABC uses a 16-bit counter and a 4 MHz clock rate. The

maximum input voltage is +10V. The maximum integrator output

voltage should be -8V when the counter has recycled through

n 2 counts. The capacitor used in the integrator is F µ 1 . 0 . Find the

value of resistor R of the integrator. (8)

(ii) What is a sample and hold circuit? Briefly explain its construction

and application. (8)

15. (a) (i) How is voltage regulators classified? Explain a series voltage

regulator. (8)

(ii) What is an optocoupler? Briefly explain its characteristics. (8)

(b) With a neat circuit diagram and internal functional diagram explain the

working of 555 timers in astable mode. (16)

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ANALOG & DIGITAL COMMUNICATION - QUESTION BANK|CS 2204 — ANALOG AND DIGITAL COMMUNICATION PAPERS ANNA UNIVERSITY|EC1291 Analog and Digital Communication

noreply@blogger.com (vijaya kumar) — Tue, 28 Aug 2012 18:18:00 +0000

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.

Third Semester

Computer Science and Engineering

CS 2204 — ANALOG AND DIGITAL COMMUNICATION

(Regulation 2008)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

CILCK HERE FOR MORE QUESTION PAPER OF CSE

PART A — (10 × 2 = 20 marks)

1. Define Amplitude modulation.
2. What is modulation index and percentage modulation in AM?
3. What is Shannon limit for information capacity?
4. What is binary phase shift keying?
5. What is the need for sampling?
6. Define inter symbol interference (ISI).
7. List any two data communication standard organization.
8. What is a data modem?
9. List the spread spectrum techniques.
10. What is CDMA?

PART B — (5 × 16 = 80 marks)

11. (a) (i) Explain the principles of amplitude modulation. (8)
(ii) Write a note on frequency spectrum analysis of angle modulated waves. (8)

(b) (i) Explain the band width requirements of anogle modulated waves. (8)
(ii) Compare FM and PM. (8)
12. (a) (i) Discuss the principle of operation of FSK transmitter. (8)
(ii) Write a note on QPSK. (8)

(b) (i) Discuss the principle of operation of FSK receiver. (8)
(ii) Write a note on DPSK. (8)
13. (a) (i) Describe the basic principles of PCM system. (8)
(ii) What is companding? Explain in detail. (8)

(b) (i) Describe in detail the adaptive delta modulation system. (8)
(ii) What is signal to quantitation noise? Explain. (8)
14. (a) (i) Write a note on data communication codes. (8)
(ii) Explain serial and parallel interfaces in detail. (8)

(b) (i) Explain in detail about error detection and correction. (8)
(ii) Write a note on medium and high speed modem. (8)
15. (a) (i) Explain the principle of DS spread spectrum technique. (8)
(ii) Explain the salient features of wireless communication. (8)

(b) (i) Describe the frequency hopping spread spectrum technique in detail. (8)
(ii) Explain the basic principle of TDMA. (8)

B.E/B.Tech EXAMINATIONS,NOVEMBER/DECEMBER 2009
THIRD SEMESTER
COMPUTER SCIENCE AND ENGINEERING
CS36-ANALOG AND DIGITAL COMMUNICATIONS
(REGULATIONS 2008)

PART A-(10X2=20 marks)1.A carrier wave is represented by equation s(t)=12sinwt.Draw the wave form of an AM wave for depth of modulation of 0.5.
2.Compare FM with AM
3.What is coherent detection?
4.Why is binary ASK called on-off keying?
5.What are the errors in DM?
6.Define companding
7. What are the two methods of error detection and correction?
8.What do you mean by signaling rate?
9.Define processing gain
10.What is CDMA?

PART B-(5X16=80 marks)

11.(a)(i)The output voltage of a transmitter is given by 500(1+0.4sin3140t)cos6.28X10^7t
This voltage is fed to a load of 600 ohms.Determine
1.Carrier frequency
2.Modulating frequency
3.Carrier power (9)
(ii)Explain i detail about super heterodyne receiver(7)
Or
(b)(i)Carrier frequency modulated with a sinusoidal signal of 2kHz resulting in a
maximum frequency deviation of 5kHz.Find
1.Modulating index
2.Bandwidth of modulated signal (4)
(ii)Explain the method of generating FM signal using indirect method(12)

12.(a)(i)Explain the coherent binary FSK system with a neat diagram of transmitter and receiver(12)
(ii)Enumerate the advantages and disadvantages of FSK over PSK system(4)
Or
(b)(i)Explain the generation and detection of coherent QPSK system in detail(12)
(ii)What is DPSK?Explain its bandwidth requirements.

13.(a)(i)Explain in detail about DPCM with suitable diagram(10)
(ii)1kHz signal is sampled by 8kHz sampling signal and the samples are encoded with 12
bit PCM system.Find
1.Required bandwidth for PCM system
2.Total number of bits in the digital output signal in 10 cycles(6)
Or
(b)(i)Write short notes on ISI(6)
(ii)What is eye pattern?Explain how is the performance of a base-band pulse transmission
system measured with this?(10)
14(a)(i)Write short notes on error correcting codes
(ii)Find the generator polynomial of (7,4) cyclic code and find the codeword for the message
1001(12)
Or
(b)Explain in detail about the serial interface with its control signals and timing information
(16)

15(a)(i)What are pseudo noise sequences?How are they generated?(6)
(ii)Explain direct sequence spread spectrum system in detail(10)
Or
(b)(i)Explain 2 types of FH spread spectrum systems with suitable diagrams(16)

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ANNA UNIVERSITY MICROPROCESSOR AND MICROCONTROLLER QUESTION BANK| MICROPROCESSOR AND MICROCONTROLLER QUESTION PAPER| ANNA UNIVERSITY MICROPROCESSOR AND MICROCONTROLLER PREVIOUS QUESTION PAPERS| ANNA UNIVERSITY QUESTION PAPERS

noreply@blogger.com (vijaya kumar) — Mon, 27 Aug 2012 11:27:00 +0000

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011

QUETION BANKS

MICROPROCESSOR AND MICROCONTROLLER

UNIT-1

PART-B (16 MARKS)

1. Draw the block diagram of 8086 mp and explain? (12)

2. Explain the architecture of Intel 8086 with the help of a block diagram? (12)

3. Describe the sequence of event that may occur during the different T state in the opcode

fetch machine cycle of 8086? (8)

4. List out the maskable and non maskable interrupts available in 8086? (6)

5. Explain the Maximum mode of operation of 8086. (12)

6. Write short notes on addressing memory. (4)

7. Explain the minimum mode of operation of 8086. (12)

8. Write notes on addressing input and output devices? (4)

9. Design an 8086 based system in minimum mode containing 64kb of EPROM

and64kb of RAM (12)

10. Give the functions of NMI, BHE and TEST pins of 8086? (4)

11. Explain the various multiprocessor configurations. (16)

12. Discuss in detail the various signal of 8086. (10)

13. Explain in detail about 8086 memory banks and associated signals for byte

andword operations. (6)

PART-A (2 MARKS)

1. How many memory locations are available in 8086 microprocessor?

2. What are the flags available in 8086 microprocessor?

3. What are the general purpose registers in 8086?

4. What are the functional units in 8086?

5. What is the purpose of BIU?

6. What is the purpose of EU?

7. What is the purpose of segment register?

8. What are the segment registers in 8086?

9. What is the function of IP?

10. What is the function of control unit?

11. What is the use of base pointer register?

12. Mention the index registers of 8086.

13. What are the flags in 8086? What are the various interrupts in 8086?

14. What is meant by Maskable interrupts?

15. What is Non-Maskable interrupts?

16. Which interrupts are generally used for critical events

17. Give examples for Maskable interrupts?

18. Give example for Non-Maskable interrupts?

19. What is the Maximum clock frequency in 8086?

20. What are the various segment registers in 8086?

21. Which Stack is used in 8086

22. What are the address lines for the software interrupts?

23. What are the address lines for the hardware interrupts? -

24. Which Segment is used to store interrupt and subroutine return address registers?

25. Which Flags can be set or reset by the programmer and also used to control the operation

of the processor?

UNIT-II

PART-A (2 MARKS)

1. What is SIM and RIM instructions?

2. Which is the tool used to connect the user and the computer?

3. What is the position of the Stack Pointer after the PUSH instruction?

4. What is the position of the Stack Pointer after the POP instruction?

5. Logic calculations are done in which type of registers?

6. What are the different functional units in 8086?

7. Give examples for Micro controllerWhat is meant by cross-compiler?

8. What is the purpose of CLK signal in an 8086 system?

9. Differentiate the operating modes of 8086 processor?

10. What is a segment override prefix? Give an example.

11. What is the use of LATCH signal on the data lines?

12. What is the need for MN/MX pin in 8086 system?

13. What is the purpose of QUEUE in 8086 processor?

14. Give the operation of CBW and TEST instructions of 8086?

15. List few string instructions of 8086?

16. What is the use of LOCK prefix?

17. What is the purpose of REP prefix?

18. What are assembler directives?

19. What are the advantages of ALP?

20. Define a MACRO?

21. What is MACRO expansion?

22. What are the types of Multiprocessor configuration?

23. What is Co-processor?

PART-B (16MARKS)

1. Write an assembly language program to add two 2-digits BCD Number? (4)

2. Explain the instruction set of 8086? (10)

3. Write notes on status flag? (6)

4. Explain the similarities diff b/w subtract and compare instructions in 8086

5. Write an assembly language program to convert on array of ASCII code to

correspondingbinary (hex) value. The ASCII array is stored starting from 4200H.The first

element of thenumber of elements in the array. (8)

6. Explain addressing modes of 8086? (10)

7. Write an ALP to Add two 8 bit numbers? (4)

8. How do the instructions of 8086 is classified based on their function and

word length?Give an example? (8)

9. Explain the 8086 Bit Manipulation instructions with an example for

each. (6)

10. Write an 8086 program to convert BCD Data to Binary Data. (8)

Explain the Relative addressing mode and the Implied addressing

mode with its syntax. Use an example. (8)

UNIT-III

PART-A (2 MARKS)

1. Name the two modes of operation of DMA controller?

2. List the operating modes of 8253 timer.

Page 4

3. Give the control word format of timer?

4. What is the use of USART?

5. Compare serial and parallel communication.

6. What is the use of Keyboard and display controller?

7. What are the functions performed by 8279?

8. What is PPI?

9. Give the control word format for I/O mode of 8255?

10. Give the BSR mode format of 8255.

11. What is the need for interrupt controller?

12. What are the registers present in 8259?

13. What are the applications of 8253?

14. Define interrupts.

15. Define DMA process.

16. Give the status word format of 8257.

17. What are the types of serial data communication?

18. What is baud rate?

19. What is USART?

20. What are the features of 8279?

21. List some of the features of INTEL 8259 (Programmable Interrupt Controller)

22. What are the control words of 8251A and what are its functions ?

23. What are the display modes supported by the 8279 chip?

24. Name any two coprocessors and their use.

25. Give the format of program clock word of 8279 and mention its purpose.

26. Mention any two coprocessors and their use.

27. What is 2 key lockout and n key roolover?

28. Name the two types of CRT display systems.

29. What do you mean by leading edge and trailing edge problems in hexadecimal

keyboards?

30. State any two main functions of a CRT controller.

PART-B (16 MARKS)

1. Draw the Block diagram and explain the operations of 8251 serial communication

interface. (16)

2. Draw the Block diagram of 8279 and explain the functions of each block. (16)

3. Draw the block diagram of programmable interrupt controller and explain its

operations.(16)

4. Discuss in detail about the operation of timer along with its various modes. (16)

5. Draw the Block diagram of DMA controller and explain its operations.

6. Explain the 8279 keyboard and display controller with a neat sketch.

7. Describe the architecture and working of 8253 timer

UNIT –IV

PART-A (2 MARKS)

1. What is Micro controller?

2. What is the difference between microprocessor & micro controller?

3. List the addressing modes of 8051?

4. Explain the instructions used to access external RAM.

5. List the features of 8051 microcontroller?

6. Explain the interrupts of 8051 microcontroller?

7. What is the function of program counter in 8051?

8. Write about the jump statement?

9. Write about CALL statement in 8051?

10. Explain the operating mode0 of 8051 serial ports?

11. Explain the operating mode2 of 8051 serial ports?

12. Explain the mode3 of 8051 serial ports?

PART B (16 MARKS)

1. With neat sketch explain the architecture of 8051 microcontroller. (16)

2. Draw the Pin Diagram of 8051 and explain the function of various

3. signals. (16)

4. List the various Instruction available in 8051 microcontroller. (16)

5. Explain the memory structure of 8051 (16)

6. Explain the I/O port structure of 8051. (16)

7. Draw the pin configuration of 8051, Explain each pin.

8. Explain the instruction set of 8051. (16)

9. MICROPROCESSOR AND MICROCONTROLLER

10. Draw the format of SCON register. Explain different bits in it. (16)

11. Write an assembly language program to find “Fibonacci Series” of “N” given term. (16)

12. Write an assembly language program for stepper motor control.

UNIT –V

PART-A (2 MARKS)

1. How is the microcontroller used for the traffic light control application?

Differentiate microprocessor from microcontroller in system design.

2. What are the design considerations for washing machine control?

3. What are the advantages of 8051 microcontroller in washing machine control?

4. How is stepper motor interfaced with microcontroller?

5. What is I2C?

PART B (16 MARKS)

1. Explain how microcontrollers and microprocessors can be used for the

washing machine control application. Use sketches.

2. Explain with a neat sketch how microcontrollers and microprocessors can

be used for the stepper motor control application.

3. Explain in the detail the process involved in the design of traffic light controller with

CLICK HERE TO DOWNLOAD THE FULL NOTES

Anna University Software Engineering Question Bank|Software Engineering previous question papers for BTECH|Software Engineering Question Papers| software engineering Question bank with answers|Software engineering nov/dec,aprl/may question papers

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B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011

Fourth Semester

Information Technology

IT 2251 – SOFTWARE ENGINEERING AND QUALITY ASSURANCE

(Regulation 2008)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 × 2 = 20 marks)

1. What is meant by Independent Verification and Validation?
2. Differentiate Waterfall model with V-Model.
3. Name the components of CASE tools for structured methodology.
4. List the steps involved in requirements elicitation and analysis.
5. What is meant by heuristic evaluation?
6. List out the steps involved in real time software design.
7. What is meant by Boundary value analysis?
8. Define the term process maturity.
9. Name any four quality control tools.
10. State the benefits of QFD.

PART B — (5 × 16 = 80 marks)

11. (a) (i) Describe the process model which defines a network of activities. (8)
(ii) State as to why the first system is always a throw away system? Explain the concept with advantages and disadvantages. (8)

(b) (i) Draw a system engineering hierarchy diagram and explain the concept. (8)
(ii) Explain the process model that combines the elements of waterfall and iterative fashion. (8)
12. (a) Give a brief description of software prototyping and briefly discuss the various prototyping techniques. (16)

(b) With an example describe the three process steps for transforming a dataflow diagram to a structure chart. (16)
13. (a) (i) Draw a translating diagram for analysis model into a software design Specification. (8)
(ii) Give a complete template for documentation design specification. (8)

(b) (i) Which is a measure of interconnection among modules in a program structure?Explain. (8)
(ii) What is the difference between Level-0 and Level-1 DFD? Draw a Level-0 and Level-1 DFD for safe Home Security System. (8)
14. (a) (i) What are all the formulas for cyclomatic complexity? Calculate cyclomatic Complexity for greatest of three numbers. (8)
(ii) How would you derive test cases for the given project? Explain in detail. (8)

(b) (i) Narrate the path testing procedure in detail with a sample code.(8)
(ii) Explain the different integration testing approaches. (8)
15. (a) Explain how software process assessment helps software organizations to improve themselves. (16)
Or
(b) Write detailed notes on ISO9000 series of quality management standards. (16)

II B.Tech II Semester Regular Examinations, Apr/May 2008

SOFTWARE ENGINEERING

( Common to Computer Science & Engineering, Information Technology

and Computer Science & Systems Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. Elaborate on evolution of software. [16]
2. (a) Differentiate between prototyping and incremental models.
(b) Explain the unified approach to software development. Discuss the merits and
demerits of this approach. [6+6+4]
3. Discuss about principal requirements engineering activities and their relationships.
[16]
4. (a) Define and explain about coupling and cohesion. Also differentiate between
them.
(b) Discuss the statement, “Abstraction and refinement are complementary con-
cepts”. [5+3+8]
5. (a) What is meant by User Interface? What are the three areas that user interface
design focuses? Explain them.
(b) Discuss the importance of user interface design? [10+6]
6. (a) The software analysis and design are constructive tasks, and software testing
is considered to be destructive from the point of view of developer. Discuss.
(b) Who will test the software, either developer or an independent test group?
Discuss the advantage and draw backs of each one.
[8+8]
7. (a) Compute the function point value for a project with the following information
domain characteristics.
Number of external inputs: 32
Number of external outputs: 60
Number of external inquires: 24
Number of external interface files: 2
Number of internal logical files: 8
Assume that all complexity adjustment values are average.
(b) What is an indirect measure? And how are such measures common in software
metrics work? [8+8]
8. (a) What is meant by FTR? Discuss about review reporting and record keeping.
(b) State and explain the guidelines for formal technical reviews. [8+8]
1 of 2

II B.Tech II Semester Regular Examinations, Apr/May 2008

SOFTWARE ENGINEERING

( Common to Computer Science & Engineering, Information Technology

and Computer Science & Systems Engineering)

Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. Give a generic view of Software Engineering. [16]
2. Discuss various evolutionary software process models in detail. [16]
3. Discuss an example of a type of system where social and political factors might
strongly influence the system requirements. Explain why these factors are impor-
tant in your example. [16]
4. (a) Define and explain abstraction and refinement. Also differentiate between
them.
(b) What is refactoring? Why is it done? [4+4+3+5]
5. (a) What is a state machine model? Discuss with an example.
(b) What is Object interface specification? Write a Java description of weather
station interface. [8+8]
6. (a) Discuss about Security testing and Performance testing.
(b) State and explain various debugging tactics.
(c) What are the questions that every software engineer should ask before making
the “Correction” that remove the cause of a bug? [6+4+6]
7. (a) Discuss about software tools for project and process metrics.
(b) Discuss any four useful indicators for software quality. [8+8]
8. (a) Is it possible asses the quality of software if the customer keeps changing?
What it is supposed to do?
(b) Can a program be correct and still not exhibit good quality? Explain. [8+8]

II B.Tech II Semester Regular Examinations, Apr/May 2008

SOFTWARE ENGINEERING

( Common to Computer Science & Engineering, Information Technology

and Computer Science & Systems Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. (a) Explain the five software assessment principles.
(b) Discuss about various phases of assessment. [6+10]
2. (a) What is water fall model? How is it different from other engineering process
models?
(b) Explain various types of evolutionary development. [5+5+6]
3. (a) Why requirements review is conducted? Discuss various types of it.
(b) What is requirements management? Why is it needed? [8+8]
4. (a) Define interface. Discuss various types of interfaces. Give examples for each.
(b) What is component? Also explain about component diagrams. [3+3+3+3+4]
5. (a) State the design principles suggested by Mayer for OOD.
(b) OOD tends to be programming language dependent. Why? [8+8]
6. (a) List some of the problems that might be associated with the creation of an
independent test group.
(b) Why is a highly coupled module is difficult to unit test? [8+8]
7. (a) Discuss the seven principles of risk management which were identified by SEI.
(b) Distinguish between generic risks and product specific risks. [10+6]
8. A Formal Technical Review (FTR) effective only if every one has prepared in ad-
vance. How do you recognize a review participant who has not prepared? What
do you do if you are the review leader? [16]

II B.Tech II Semester Regular Examinations, Apr/May 2008

SOFTWARE ENGINEERING

( Common to Computer Science & Engineering, Information Technology

and Computer Science & Systems Engineering)

Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. (a) Explain the five software assessment principles.
(b) Discuss about various phases of assessment. [6+10]
2. (a) What is water fall model? How is it different from other engineering process
models?
(b) Explain various types of evolutionary development. [5+5+6]
3. Using your own knowledge of how an ATM is used, develop a set of use-cases that
could be used to derive the requirements for an ATM system. [16]
4. (a) Discuss the advantages and disadvantages of modularization.
(b) Why should not we over modularize? How would you decompose a software
solution to obtain the best set of modules. [8+3+5 ]
5. Draw a sequence diagram showing the interactions of objects in a group diary
system when a group of people arrange a meeting. [16]
6. (a) What is the overall strategy for software testing? Explain it clearly.
(b) Discuss a testing strategy for Object-Oriented architectures. [10+6]
7. (a) Explain the size-oriented metrics with an example.
(b) Discuss about Function-oriented metrics. [8+8]
8. What is meant by SQA? Discuss in detail SQA activities. [16]

ME 1351 HEAT AND MASS TRANSFER QUESTION BANK-QUESTION PAPER NOV/DEC 2010 - previous year anna university chennai question papers

noreply@blogger.com (vijaya kumar) — Wed, 22 Aug 2012 17:25:00 +0000

Heat and Mass Transfer question bank or all unit download:-

CLICK HERE to download heat and transfer

syllabus
1.CONDUCTION 11
Basic Concepts – Mechanism of Heat Transfer – Conduction, Convection and Radiation – General Differential equation of Heat Conduction – Fourier Law of Conduction – Cartesian and Cylindrical Coordinates – One Dimensional Steady State Heat Conduction – Conduction through Plane Wall, Cylinders and Spherical systems – Composite Systems – Conduction with Internal Heat Generation – Extended Surfaces – Unsteady Heat Conduction – Lumped Analysis – Use of Heislers Chart.

2.CONVECTION 10
Basic Concepts – Convective Heat Transfer Coefficients – Boundary Layer Concept – Types of Convection – Forced Convection – Dimensional Analysis – External Flow – Flow over Plates, Cylinders and Spheres – Internal Flow – Laminar and Turbulent Flow – Combined Laminar and Turbulent – Flow over Bank of tubes – Free Convection – Dimensional Analysis – Flow over Vertical Plate, Horizontal Plate, Inclined Plate, Cylinders and Spheres.

3. PHASE CHANGE HEAT TRANSFER AND HEAT EXCHANGERS 9
Nusselts theory of condensation-pool boiling, flow boiling, correlations in boiling and condensation. Types of Heat Exchangers – LMTD Method of heat Exchanger Analysis – Effectiveness – NTU method of Heat Exchanger Analysis – Overall Heat Transfer Coefficient – Fouling Factors.

4. RADIATION 8
Basic Concepts, Laws of Radiation – Stefan Boltzman Law, Kirchoff Law –Black Body Radiation –Grey body radiation Shape Factor Algebra – Electrical Analogy – Radiation Shields –Introduction to Gas Radiation.

5.MASS TRANSFER 7
Basic Concepts – Diffusion Mass Transfer – Fick’s Law of Diffusion – Steady state Molecular Diffusion – Convective Mass Transfer – Momentum, Heat and Mass Transfer Analogy – Convective Mass Transfer Correlations

TUTORIAL 15 TOTAL : 60
Note: (Use of standard heat and mass transfer data book is permitted in the University examination)

TEXT BOOKS
Sachdeva R C, “Fundamentals of Engineering Heat and Mass Transfer” New Age International, 1995.
Yadav R “Heat and Mass Transfer” Central Publishing House, 1995.

REFERENCES

Ozisik M.N, “Heat Transfer”, McGraw-Hill Book Co., 1994.
Nag P.K, “ Heat Transfer”, Tata McGraw-Hill, New Delhi, 2002
Holman J.P “Heat and Mass Transfer” Tata McGraw-Hill, 2000.
Kothandaraman C.P “Fundamentals of Heat and Mass Transfer” New Age International, New Delhi, 1998
Frank P. Incropera and David P. DeWitt, “Fundamentals of Heat and Mass Transfer”, John Wiley and Sons, 1998.
6 Velraj R, “Heat & Mass Transfer”, Ane Books, New Delhi, 2004

ANNA UNIVERSITY MANUFACTURING TECHNOLOGY-I,II IMPORTANT QUESTIONS-QUESTION BANKS

noreply@blogger.com (vijaya kumar) — Wed, 22 Aug 2012 17:13:00 +0000

THIS IS QUSTION BANK FOR MANUFACTURING TECHNOLOGY -ME2252

PART-A & PART-B HAS UPDATED

MECHNICAL ENGINEERING

QUESTION BANK

PART-A

What is the difference between a ram type turret lathe and saddle type turret lathe?
What are the common work holding devices used on milling machines?
Why is it essential that the cutting point of the tool should be level with the spindle center while machining taper on a work-piece
Give two examples of orthogonal cutting
Under what conditions planning operation would be preferred over other machining processes like milling, broching, shapping, etc
What are the four important characteristics of materials used for cutting tools?
What for lapping is used?
State the abrasives used in the manufacture of grinding wheels.
What is the difference between incremental and absolute system?
What is the role of computer for NC machine tool?
What are the factors responsible for built –up edge in cutting tools?
What is electro chemical wear in tools?
Mention four different types of chucks used in a machine shop.
What is rake angle? What is the effect of nose radius in tools?
What is up milling and down milling operations?
Mention the major elements of NC machines.
What is roller burnishing process?
Define NC
Mention four important factors that influences the selection of grinding wheels.
What you know about straight fluted drill and fluted drill?

PART-B

1. Expain the geometry of single point cutting tool with suitable sketches

2. Explain the basic actions of cutting fluids.

3. During the orthogonal cutting, the following data where recorded

Back rake angle = 25 deg

Chip thickness = 0.15 mm/rev

Length of chip = 40 mm

Length of chip = 100 mm

Width of chip before cut = 3.5 mm

Coefficient of friction = 0.75

Cutting speed Vc = 250 m/mm

Average shear stress = 250 N/mm

Determine power consumption.

4. Explain the thread cutting operation in a lathe with a neat sketch. Also make a note on knurling, grooving and forming operations in a lathe.

5. Discuss the features of ram type and saddle type turret

6. Explain the features of multi spindle automatics.

7. With the sketches explain the features of the major elements of a twist drill

8. Explain different types of milling cutters

9. Make a note on different types of work holding devices used in a slotting machine.

10. Explain the different types of table drive and feed mechanisms in a planning machine.

11. Explain the salient features of a centre less grinding machine and discuss the different operations that can be carried out in it. Mention some advantages.

12. Briefly discuss about different types of abrasives used in a grinding wheel.

13. Explain the gear shaving, gear honing and gear lapping processes.

14. Discuss the important design features of CNC machine tools.

15. Write Short notes on:

i NC machine tool classification

ii. APT programming structure

iii G and M codes

iv CNC machine Vs Conventional machine

16. Explain the conditions that promote the formation of the following types of chip

i. Continuous chips without built up edge

ii. Continuous chips with built up edge

iii. Discontinuous chip

17. Define the Various tool parts of a single point cutting tool with a neat sketch.

18. What are the slandered angles of cutting tool? Illustrate with an example.

19. Describe some of the methods and equipment for holding work on a lathe.

20. Explain any four commonly used attachments on lathe.

21. Briefly explain the principle of working of the sliding head type single spindle automatic machine.

22. Describe with neat sketch a turret automatic screw machine.

23. State the advantages of Ward-Leonard drive.

24. Explain with a sketch “Fast and Loose pulley” quick return mechanism of a planer table.

25. State the methods of holding milling cutters.

26. Explain simple indexing, compound indexing and differential indexing with suitable example.

27. State the advantages and limitations of broaching.

28. Compare gear hobbing with gear shaping.

29. Explain self-sharpening characteristics of grinding wheel.

30. Describe the use of cutting fluids in grinding.

31. Explain wheel truing and dressing.

32. State a few typical applications where the use of numerical control would be justified.

33. Describe in brief the basic components of a tape-operated NC machine tool.

34. Discuss the advantages of computer numerical control system.

35. What is the difference between positioning machines and contouring machines?

DPSD DIGITAL PRINCIPLES AND SYSTEM DESIGN 141302 subject for NOV/DEC 2011 ANNA UNIVERSITY FOR SECOND YEAR SEMESTER THIRD SEMESTER CSE Students-DPSD DIGITAL PRINCIPLES AND SYSTEM DESIGN 141302 QUESTION BANK-DPSD DIGITAL PRINCIPLES AND SYSTEM DESIGN 2MARKS AN 16 MARKS

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DEPARTMENT OF INFORMATION TECHNOLOGY

Sub Name : CS1202-Digital Principles and System Design

Branch/Sem : IT / III

CS1202 Digital Principles and System Design

Question Bank

Unit – I Boolean algebra and Logic Gates

Part A

1. Find the hexadecimal equivalent of the decimal number 256

2. Find the octal equivalent of the decimal number 64

3. What is meant by weighted and non-weighted coding?

4. Convert A3BH and 2F3H into binary and octal respectively

5. Find the decimal equivalent of (123)9

6. Find the octal equivalent of the hexadecimal number AB.CD

7. Encode the ten decimal digits in the 2 out of 5 code

8. Show that the Excess – 3 code is self –complementing

9. Find the hexadecimal equivalent of the octal number 153.4

10. Find the decimal equivalent of (346)7

11. A hexadecimal counter capable of counting up to at least (10,000)10 is to be constructed.

What is the minimum number of hexadecimal digits that the counter must have?

12. Convert the decimal number 214 to hexadecimal

13. Convert 231.3 4 to base 7

14. Give an example of a switching function that contains only cyclic prime implicant

15. Give an example of a switching function that for which the MSP from is not unique.

16. Express x+yz as the sum of minterms

17. What is prime implicant?

18. Find the value of X = A B C (A+D) if A=0; B=1; C=1 and D=1

19. What are ‘minterms’ and ‘maxterms’?

20. State and prove Demorgan’s theorem

21. Find the complement of x+yz

22. Define the following : minterm and term

23. State and prove Consensus theorem

24. What theorem is used when two terms in adjacent squares of K map are combined?

25. How will you use a 4 input NAND gate as a 2 input NAND gate?

26. How will you use a 4 input NOR gate as a 2 input NOR gate?

27. Show that the NAND connection is not associative

28. What happens when all the gates is a two level AND-OR gate network are replaced by

NOR gates?

29. What is meant by multilevel gates networks?

30. Show that the NAND gate is a universal building block

31. Show that a positive logic NAND gate is the same as a negative logic NOT gate

32. Distinguish between positive logic and negative logic

33. Implement AND gate and OR gate using NAND gate

34. What is the exact number of bytes in a system that contains (a) 32K byte, (b) 64M bytes,

and (c) 6.4G byte?

35. List the truth table of the function:

F = x y + x y’ + y ’z

Part B

1. (a) Explain how you will construct an (n+1) bit Gray code from an n bit

Gray code

(b) Show that the Excess – 3 code is self -complementing

2. (a) Prove that (x1+x2).(x1’. x3’+x3) (x2’ + x1.x3) =x1’x2

(b) Simplify using K-map to obtain a minimum POS expression:

(A’ + B’+C+D) (A+B’+C+D) (A+B+C+D’) (A+B+C’+D’) (A’+B+C’+D’)

(A+B+C’+D)

3. Reduce the following equation using Quine McClucky method of

minimization F (A,B,C,D) = _m(0,1,3,4,5,7,10,13,14,15)

4. (a) State and Prove idempotent laws of Boolean algebra.

(b) using a K-Map ,Find the MSP from of F= _(0,4,8,12,3,7,11,15) +_d(5)

5 (a) With the help of a suitable example ,explain the meaning of an redundant prime i

implicant

(b) Using a K-Map, Find the MSP form of F= _ (0-3, 12-15) + _d (7, 11)

6 (a) Simplify the following using the Quine – McClusky minimization technique

D = f(a,b,c,d) = _ (0,1,2,3,6,7,8,9,14,15).Does Quine –McClusky take care of don’t

care conditions? In the above problem, will you consider any don’t care conditions?

Justify your answer

(b) List also the prime implicants and essential prime implicants for the above case

7 (a) Determine the MSP and MPS focus of F= _ (0, 2, 6, 8, 10, 12, 14, 15)

(b) State and Prove Demorgan’s theorem

8 Determine the MSP form of the Switching function

F = _ ( 0,1,4,5,6,11,14,15,16,17,20- 22,30,32,33,36,37,48,49,52,53,56,63)

9. (a) Determine the MSP form of the Switching function

F( a,b,c,d) =_(0,2,4,6,8) + _d(10,11,12,13,14,15)

(b) Find the Minterm expansion of f(a,b,c,d) = a’(b’+d) + acd’

10 Simplify the following Boolean function by using the Tabulation Method

F= _ (0, 1, 2, 8, 10, 11, 14, 15)

11 State and Prove the postulates of Boolean algebra

12 (a) Find a Min SOP and Min POS for f = b’c’d + bcd + acd’ + a’b’c + a’bc’d

13 Find an expression for the following function usingQuine McCluscky method

F= _ (0, 2, 3,5,7,9,11,13,14,16,18,24,26,28,30)

14 State and Prove the theorems of Boolean algebra with illustration

15 Find the MSP representation for

F(A,B,C,D,E) = _m(1,4,6,10,20,22,24,26) + _d (0,11,16,27) using K-Map method

Draw the circuit of the minimal expression using only NAND gates

16 (a) Show that if all the gates in a two – level AND-OR gate networks are replaced by

NAND gates the output function does not change

(b) Why does a good logic designer minimize the use of NOT gates?

17 Simplify the Boolean function F(A,B,C,D) = _ m (1,3,7,11,15) + _d (0,2,5) .if don’t

care conditions are not taken care, What is the simplified Boolean function .What are

your comments on it? Implement both circuits

18 (a) Show that if all the gate in a two – level OR-AND gate network are replaced by NOR

gate, the output function does not change.

(b) Implement Y = (A+C) (A+D’) ( A+B+C’) using NOR gates only

19 (a) F3 = f(a,b,c,d) = _ (2,4,5,6)

F2 = f(a,b,c,d) = _ (2,3,,6,7)

F1 = f(a,b,c,d) = _ (2,5,6,7) .Implement the above Boolean functions

(i) When each is treated separately and

(ii)When sharing common term

(b) Convert a NOR with an equivalent AND gate

20 Implement the Switching function whose octal designation is 274 using NAND gates only

21 Implement the Switching function whose octal designation is 274 using NOR gates only

22 (a) Show that the NAND operation is not distributive over the AND operation

(b) Find a network of AND and OR gate to realize f(a,b,c,d) = _ m (1,5,6,10,13,14)

23 What is the advantages of using tabulation method? Determine the prime implicants of the

following function using tabulation method

F( W,X,Y,Z) = _(1,4,6,7,8,9,10,11,15)

23 (a) Explain about common postulates used to formulates various algebraic structures

(b) Given the following Boolean function F= A”C + A’B + AB’C + BC

Express it in sum of minterms & Find the minimal SOP expression

Unit – II Combinational Logic

Part A

1. How will you build a full adder using 2 half adders and an OR gate?

2. Implement the switching function Y= BC’ + A’B + D

3. Draw 4 bit binary parallel adder

4. Write down the truth table of a full adder

5. Write down the truth table of a full sub tractor

6. Write down the truth table of a half sub tractor

7. Find the syntax errors in the following declarations (note that names for primitive gates

are optional):

module Exmp1-3(A, B, C, D, F)

inputs A,B,C,

and g1(A,B,D);

not (D,B,A);

OR (F,B,C);

endmodule ;

8. Draw the logic diagram of the digital circuit specified by

module circt (A,B,C,D,F);

input A,B,C,D;

output F;

wire w,x,y,z,a,d;

and (x,B,C,d);

and y,a,C);

and (w,z,B);

or (z,y,A);

or (F,x,w);

not (a,A);

not (d,D);

endmodule

9. Define Combinational circuits

10. Define Half and Full adder

11. Give the four elementary operations for addition and subtraction

12. Design the combinational circuit with 3 inputs and 1 output. The output is 1 when the

binary value of the inputs is less than 3.The output is 0 otherwise

13. Define HDL

14. What do you mean by carry propagation delay?

15. What is code converter?

16. Give short notes on Logic simulation and Logic synthesis

17. What do you mean by functional and timing simulation?

18. What do you mean by test bench?

19. Give short notes on simulation versus synthesis

20. Define half sub tractor and full sub tractor

Part B

1 Design a 4 bit magnitude comparator to compare two 4 bit number

2 Construct a combinational circuit to convert given binary coded decimal number into an

Excess 3 code for example when the input to the gate is 0110 then the circuit should

generate output as 1001

3 Design a combinational logic circuit whose outputs are F1 = a’bc + ab’c and

F2 = a’ + b’c + bc’

4 (a) Draw the logic diagram of a *-bit 7483 adder

(b) Using a single 7483, Draw the logic diagram of a 4 bit adder/sub tractor

5 (a) Draw a diode ROM, which translates from BCD 8421 to Excess 3 code

(b) Distinguish between Boolean addition and Binary addition

6 Realize a BCD to Excess 3 code conversion circuit starting from its truth table

7 (a) Design a full sub tractor

(b) How to it differ from a full sub tractor

8 Design a combinational circuit which accepts 3 bit binary number and converts its

equivalent excess 3 codes

9 Derive the simplest possible expression for driving segment “a” through ‘g’ in an 8421

BCD to seven segment decoder for decimal digits 0 through 9 .Output should be

active high (Decimal 6 should be displayed as 6 and decimal 9 as 9)

10 Write the HDL description of the circuit specified by the following Boolean function

(i) Y= (A+B+C) (A’+B’+C’)

(ii) F= (AB’ + A’B) (CD’+C’D)

(iii) Z = ABC + AB’ + A(D+B)

(iv) T= [(A+B} {B’+C’+D’)]

11 Design 16 bit adder using 4 7483 ICs

Unit – III Design with MSI Devices

Part A

1. What is a decoder and obtain the relation between the number of inputs ‘n’ and outputs

‘m’ of a decoder?

2. Distinguish between a decoder and a demultiplexer

3. Using a single IC 7485 ; draw the logic diagram of a 4 bit comparator

4. what is decoder

5. What do you mean by encoder?

6. Write the short notes on priority encoder

7. What is multiplexer? Draw the logic diagram of8 to 1 line multiplexer

8. What do you mean by comparator?

9. Write the HDL description of the circuit specified by the following Boolean function

X=AB+ACD+BC’

10. How does ROM retain information?

11. Distinguish between PAL and PLA

12. Give the classification of memory

13. What is refreshing? How it is done?

14. What is Hamming code?

15. Write a short notes on memory decoding

16. List the basic types of programmable logic devices

17. What is PAL? How it differ from PROM and PLA?

18. Write a short notes on – PROM,EPROM,EEPROM

19. How many parity bits are required to form Hamming code if massage bits are 6?

20. How to find the location of parity bits in the Hamming code?

21. Generate the even parity Hamming codes for the following binary data

1101, 1001

22. A seven bit Hamming code is received as 11111101. What is the correct code?

23. Compare static RAMs and dynamic RAMs

24. Define Priority encoder

25. Define PLDs

Part B

1. Implement the switching function F= _(0,1,3,4,7) using a 4 input MUX and explain

2. Explain how will build a 64 input MUX using nine 8 input MUXs

3. State the advantages of complex MSI devices over SSI gates

4. Implement the switching function F(A,B,C) = _ ( ,2,4,5) using the DEMUX 74156

5. Implement the switching function F= _(0,1,3,4,12,14,15) using an 8 input MUX

6. Explain how will build a 16 input MUX using only 4 input MUXs

7. Explain the operation of 4 to 10 line decoder with necessary logic diagram

8. Draw a neat sketch showing implementation of Z1 = ab’d’e + a’b’c’e’ + bc + de ,

Z2 = a’c’e, Z3 = bc +de+c’d’e’+bd and Z4 = a’c’e +ce using a 5*8*4 PLA

9. Implement the switching functions:

Z1 = ab’d’e + a’b’c’e’ + bc + de ,

Z2 = a’c’e,

Z3 = bc +de+c’d’e’+bd and

Z4 = a’c’e +ce Using a 5*8*4 PLA

10 Design a switching circuit that converts a 4 bit binary code into a 4 bit Gray code using

ROM array

11.Design a combinational circuit using a ROM ,that accepts a 3- bit number and

generates an output binary number equal to the square of the given input number

Unit – IV Synchronous Sequential Logic

Part A

1. Derive the characteristic equation of a D flip flop

2. Distinguish between combinational and sequential logic circuits

3. What are the various types of triggering of flip-flops?

4. Derive the characteristic equation of a T flip flop

5. Derive the characteristic equation of a SR flip flop

6. What is race round condition? How it is avoided?

7. List the functions of asynchronous inputs

8. Define Master slave flip flop

9. Draw the state diagram of ‘T’ FF, ‘D’ FF

10. Define Counter

11. What is the primary disadvantage of an asynchronous counter?

12. How synchronous counters differ from asynchronous counters?

13. Write a short note on counter applications

14. Compare Moore and Mealy models

15. When is a counter said to suffer from lock out?

16. What is the minimum number of flip flops needed to build a counter of modulus z 8?

17. State the relative merits of series and parallel counters

18. What are Mealy and Moore machines?

19. When is a counter said to suffer from lockout?

20. What is the difference between a Mealy machine and a Moore Machines?

21. Distinguish between synchronous and asynchronous sequential logic circuits

22. Derive the characteristic equation of a JK flip flop

23. How will you convert a JK flip flop into a D flip flop

24. What is mean by the term ‘edge triggered’?

25. What are the principle differences between synchronous and asynchronous networks

26. What is lockout? How it is avoided?

27. What is the pulse mode operation of asynchronous sequential logic circuits not very

popular?

28. What are the advantages of shift registers?

29. What are the applications of a shift register?

30. How many flip –flops are needed to build an 8 bit shift register?

31. A shift register comprises of JK flip-flops. How will you complement of the counters of the

32. List the basic types of shift registers in terms of data movement.

33. Write a short notes on PRBS generator

34. Give the HDL dataflow description for T flip - flop

35. Give the HDL dataflow description for JK flip – flop

Part B

1 Draw the state diagram and characteristics equation of T FF, D FF and JK FF

2 (a) What is race around condition? How is it avoided?

(b) Draw the schematic diagram of Master slave JK FF and input and output

waveforms.Discuss how it prevents race around condition

3 Explain the operation of JK and clocked JK flip-flops with suitable diagrams

4 Draw the state diagram of a JK flip- flop and D flip – flop

5 Design and explain the working of a synchronous mod – 3 counter

6 Design and explain the working of a synchronous mod – 7 counter

7 Design a synchronous counter with states 0,1, 2,3,0,1 …………. Using JK FF

8 Using SR flip flops, design a parallel counter which counts in the sequence

000,111,101,110,001,010,000 ………….

9 Using JK flip flops, design a parallel counter which counts in the sequence

000,111,101,110,001,010,000 ………….

10 (a) Discuss a decade counter and its working principle

(b) Draw as asynchronous 4 bit up-down counter and explain its working

11 (a) How is the design of combinational and sequential logic circuits possible with PLA?

(b) Mention the two models in a sequential circuit and distinguish between them

12 Design a modulo 5 synchronous counter using JK FF and implement it. Construct its

timing diagram

12 A sequential machine has one input line where 0’s and 1’s are being incident. The

machine has to produce a output of 1 only when exactly two 0’s are followed by a ‘1’

or exactly two 1’s are followed by a ‘0’.Using any state assignment and JK

flipflop,synthesize the machine

13 Using D flip –flop ,design a synchronous counter which counts in the sequence

000, 001, 010, 011, 100, 1001,110,111,000

15 Using JK flip-flops, design a synchronous sequential circuit having one and one

output. the output of the circuit is a 1 whenever three consecutive 1’s are

observed. Otherwise the output is zero

14 Design a binary counter using T flip – flops to count in the following sequences:

(i) 000,001,010,011,100,101,110,111,000

(ii) 000,100,111,010,011,000

15 (a) Design a synchronous binary counter using T flip – flops

(b) Derive the state table of a serial binary adder

17. Design a 3 bit binary Up-Down counter

18. (i) Summarize the design procedure for synchronous sequential circuit

(ii) Reduce the following state diagram

Unit – V Asynchronous Sequential Logic

Part A

1. Distinguish between fundamental mode and pulse mode operation of asynchronous

sequential circuits

2. What is meant by Race?

3. What is meant by critical race?

0/0

b c

0/0

1/1

0/0

1/1

0/0

1/0

0/0

4. What is meant by race condition in digital circuit?

5. Define the critical rate and non critical rate

6. What are races and cycles?

7. What is the significance of state assignment?

8. What are the steps for the analysis of asynchronous sequential circuit?

9. What are the steps for the design of asynchronous sequential circuit?

10. Write short notes on (a) Shared row state assignment

(b) One hot state assignment

11. What are Hazards?

12. What is a static 1 hazard?

13. What is a static 0 hazard?

14. What is dynamic hazard?

15. Define static 1 hazard, static 0 hazards, and dynamic hazard?

16. Describe how to detect and eliminate hazards from an asynchronous network?

17. What is static hazard?

18. List the types of hazards?

19. How to eliminate the hazard?

20. Draw the wave forms showing static 1 hazard?

Part B

1. What is the objective of state assignment in asynchronous circuit? Give hazard – free

realization for the following Boolean function f(A,B,C,D) = _M(0,2,6,7,8,10,12)

2. Summarize the design procedure for asynchronous sequential circuit

a. Discuss on Hazards and races

b. What do you know on hardware descriptive languages?

3. Design an asynchronous sequential circuit with 2 inputs X and Y and with one output Z

Wherever Y is 1, input X is transferred to Z .When Y is 0; the output does not change for

any change in X.Use SR latch for implementation of the circuit

4. Develop the state diagram and primitive flow table for a logic system that has 2 inputs,x

and y and an output z.And reduce primitive flow table. The behavior of the circuit is stated

as follows. Initially x=y=0. Whenever x=1 and y = 0 then z=1, whenever x = 0 and y = 1

then z = 0.When x=y=0 or x=y=1 no change in z ot remains in the previous state. The

logic system has edge triggered inputs with out having a clock .the logic system changes

state on the rising edges of the 2 inputs. Static input values are not to have any effect in

changing the Z output

5. Design an asynchronous sequential circuit with two inputs X and Y and with one output Z.

Whenever Y is 1, input X is transferred to Z.When Y is 0,the output does not change for

any change in X.

6. Obtain the primitive flow table for an asynchronous circuit that has two inputs x,y and one

output Z. An output z =1 is to occur only during the input state xy = 01 and then if the only if

the input state xy =01 is preceded by the input sequence.

7. A pulse mode asynchronous machine has two inputs. It produces an output whenever two

consecutive pulses occur on one input line only .The output remains at ‘1’ until a pulse has

occurred on the other input line. Draw the state table for the machine.

(a) How will you minimize the number of rows in the primitive state table of an incompletely

specified sequential machine

(b) State the restrictions on the pulse width in a pulse mode asynchronous sequential

machine

9. Construct the state diagram and primitive flow table for an asynchronous network that has

two inputs and one output. The input sequence X1X2 = 00,01,11 causes the output to

become 1.The next input change then causes the output to return to 0.No other inputs will

produce a 1 output

--------------------------------------------------------*************----------------------------------------------------------

FOR LAB MANUAL:CLICK HERE

FOR NOTES:CLICK HERE

PROBABALITY AND QUEUING THEORY-PQT-PQT QUESTION BANK-COMPLETE QUESTION PAPER COLLECTION

noreply@blogger.com (vijaya kumar) — Mon, 20 Aug 2012 16:46:00 +0000

MA2262 QUESTION BANK | PQT QUESTION BANK

ANNA UNIVERSITY - April/MAY 2010

Fourth Semester

MA2262 Probability and Queuing theory

(Common to Fourth Semester B.Tech IT)

Time: Three Hours Maximum Marks: 100

Answer all the questions

PART A-(10 X 2=20 marks)

1. Given the probability density function f(x) = k/(1+x2), -∞ < x < ∞, Find k

and C.D.F. F(x).

2. If the probability is 0.10 that a certain kind of measuring device will show

excessive drift, what is the probability that the fifth measuring device

tested will be the first show excessive drift? Find its expected value also.

3. If X has mean 4 and variance 9, while Y has mean -2 and variance 5, and

the two are independent, find(a).E(XY) (b).E(XY2)

4.Let X and Y be continuous RVs with J.p.d.f

f( x, y) = 2xy+3/2y2, 0<1 0="0" br="br" f="f" find="find" otherwise="otherwise" p="p" x="x" y="y">5. Define (a).Markov chain (b).Wide-Sense stationary process.
6. State any two properties of the Poisson process
7. In the usual notation of an M/M/I queuing system, if λ = 3/hour and
µ=4/hour, find P(X=5) where X is the number of customers in the system.
8. Find P(X=c+n) for an M/M/C queuing system.
9. Write the P – K Formula in M/G/1 Queuing Model
10.Write the balance equation for the closed Jackson Network.

PART B-(5 X 16=80 marks)

11a (i).The time required to repair a machine is exponentially distributed
with mean 2 . What is the probability that a repair takes at least 10
hours given that its duration exceeds 9 hours? (8)
(ii). A discrete R.V. X has moment generating function MX(t)= (1/4+3/4e t)5
Find E(X),Var(X) and P(X=2). (8)

(OR)

11.(b).(i).Find the moment generating function of a poisson variable and
hence obtain its mean and variance. (8)
(ii). A man draws 3 balls from an urn containing 5 white and and 7
black balls. He gets Rs.10 for each white ball and Rs.5 for each black
ball. Find his Expectation. (8)

12.(a).(i).(X, Y) is a two dimensional random variable uniformly distributed
over the triangular region R bounded by y = 0 , x = 3 , y = 4/3 x. Find
the correlation coefficient (8)
(ii). Suppose that orders at a restaurant are i.i.d random variables with
mean µ=Rs. 8 and standard deviation s=Rs. 2. Estimate (1)the
probability that first 100 customers spend a total of more than
Rs.840 (2).P( 780 < x <820 br="br"> (OR)
12.(b).(i). Let X and Y be non-negative continuous random variables having
the joint probability density function
f(x,y)=4xy e-(x2+y2) , x>0 , y>0
Find the p.d.f. of U=√(x2+y2). (8)
(ii).If the joint p.d.f. of X and Y is given by X and Y is given by
g(x,y) = e-(x+y) , x>=0, y>=0
then
(1) find the m.p.d.f. of X
(2) find the m.p.d.f of Y.
(3) Are X and Y independent RVs? Explain?
(4) Find P(X > 2, Y<4 br="br"> (5) Find P(X>Y). (8)

13.(a).(i).Let {Xn;n=1,2,3…} be a Markov chain on the space
S={1,2,3} with one step transition probability matrix
0 1 0
p = ½ 0 ½
1 0 0
(1).Sketch the transition diagram.
(2).Is the chain irreducible? Explain
(3).Is the chain Ergodic? Explain. (8)
(ii) If the customers arrive in accordance with Poisson process, with mean
rate of 2 per minute, find the probability that the interval between 2
consecutive arrivals is (1) more than 1 minute (2) between 1 and 2
minutes (3) less than 4 minutes. (8)
(OR)
13.(b).(i).Consider a random process X(t) defined by X(t)=Ucost+(V+1)sint,
where U and independent random variables for which
E(U)=E(V)=0;E(U2)=E(V2)=1.
(1).Find the auto-covariance function of X(t)
(2).Is X(t) wide-sense stationary? Explain your answer. (8)
(ii). Ther are 2 white marbles in urn A and 4 red marbles in urn B. At each
step of the process, a marble is selected from each urn and the 2
marbles selected are interchanged. The state of the relaxed Markov
chain is the number of red balls in A after the interchange. What is
the probability that there are 2 red balls in urn A (i) after 3 steps and
(ii) in the long run? (8)

14.(a).(i).A concentrator receives messages from a group of terminals and
transmits them over a single transmission line. Suppose that
messages arrives according to a Poisson process at a rate of one
message every 4 milliseconds and suppose that message transmission
times are exponentially distributed with mean 3ms. Find the mean
number of messages in the system and the mean total delay in the
system. What percentage increase in arrival rate results in a doubling
of the above mean total delay? (8)
(ii). Discuss the M/M/1 queuing system finite capacity and obtain its
steady-state probabilities and the mean number of customers in the
system. (8)
(OR)
14.(b).(i).A petrol pump station has 2 pumps. The service times follow the
exponential distribution with mean of 4 minutes and cars arrive for
service is a Poisson process at the rate of 10 cars per hour. Find the
probability that a customer has to wait for service. What is the
probability that the pumps remain idle? (8)
(ii) There are 3 typists in an office. Each typist can type an average of 6
letters per hour. If letters arrive for being typed at the rate of 15 letters
per hour, what fraction of time all the typists will be busy? What is
the average number of letters waiting to be typed? (8)

15. (a)(i). Automatic car wash facility operates with only one bay. Cars
arrive according to a Poisson process, with mean of 4 cars per hour
and may wait in the facility parking lot if the bay is busy. If the
service time for the cars is constant and equal to 10 min, determine
(1).mean number of customers in the system, (2).mean number of
customers in the queue (3).mean waiting time in the system (4).mean
waiting time in the queue. (8)
(ii) A repair facility shared by a large number of machines has 2
sequential stations with respective service rates of 2 per hour and 3 per
hour. The cumulative failure rate of all the machines is 1 per hour.
Assuming that the system behavior may be approximated by the
2-stage tandem queue, find
(1) the average repair time including the waiting time.
(2) the probability that both the service stations are idle and
(3) the bottleneck of the repair facility. (8)
(OR)
15 (b). Customers arrive at a service centre consisting of 2 service points S1
and S2 at a Poisson rate of 35/hour and form a queue at the entrance.
On studying the situation at the centre, they decide to go to either S1 or
S2 .The decision making takes on the average 30 seconds in an
exponential fashion. Nearly 55% of the customers go to S1, that
consists of 3 parallel servers and the rest go to S2, that consist of 7
parallel servers. The service times at S1, are exponential with a mean
of 6 minutes and those at S2 with a mean of 20 minutes. About 2% of
customers, on finishing service at S1 go to S2 and about 1% of
customers, on finishing service at S2 go to S1. Find the average queue
sizes in front of each node and the total average time a customer
spends in the service centre. (16)

EC2255 Control Systems Anna university Question bank for all units -CONTROL SYSTEM PREVIOUS YEAR QUESTION PAPERS

noreply@blogger.com (vijaya kumar) — Sun, 19 Aug 2012 20:04:00 +0000

DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING

QUESTION BANK

SUBJECT CODE : SEM / YEAR : 4 / III

SUBJECT NAME : CONTROL SYSTEMS

UNIT I
CONTROL SYSTEM MODELLING
PART – A (2 Marks)
1. What is a system?
2. Define transfer function.
3. What do you mean by sensitivity of the control system?
4. Write Mason’s gain formula.
5. What is control system?
6. What are the two major types of control systems?
7. Define open loop and closed loop systems.
8. What is feedback? What type of feed back is employed in control system?
9. Why negative feedback is preferred in control systems?
10. Distinguish between open loop and closed loop systems.
11. State principle of superposition theorem.
12. What is time variant and Time invariant?
13. What is mathematical model of a system?
14. Write force balance equation of ideal spring, ideal mass.
15. Name the two types of electrical analogous for mechanical system.
16. What is signal flow graph?
17. Define non-touching loop.

PART – B (16 Marks)
1. Write the differential equations governing the Mechanical system shown in fig .and
determine the transfer function.(16)

2. Determine the transfer function Y2(S)/F(S) of the system shown in fig.
(16)
3. Write the differential equations governing the Mechanical rotational system shown in
fig. Draw the Torque-voltage and Torque-current electrical analogous circuits.
(16)
4. Determine the overall transfer function C(S)/R(S) for the system shown in fig.(16)

5. Obtain the closed loop transfer function C(S)/R(S) of the system whose block
diagram is shown in fig.
(16)
6. For the system represented by the block diagram shown in fig. Determine C1/R1
and C2/R1.(16)
7. Obtain the closed loop transfer function C(S)/R(S_ of the system whose block
diagram is shown in fig.(16)
8. Find the overall gain of the system whose signal flow graph is shown in fig.
(16)
9. Draw a signal flow graph and evaluate the closed loop transfer function of a system
whose block is shown in fig.
(16)
10. Derive the transfer function for Armature controlled DC servo motor. (16)
11. Derive the transfer function for Field controlled DC servo motor. (16)

UNIT II
TIME RESPONSE ANALYSIS
PART – A (2 Marks)
1. What is time response?
2. What is transient and steady state response?
3. Name the test signals used in time response analysis.
4. Define step signal.
5. Define Ramp signal and parabolic signal.
6. What is an impulse signal?
7. How is system classified depending on the value of damping?
8. Sketch the response of a second order under damped system.
9. What is damped frequency of oscillation?
10. The closed-loop transfer function of second order system is
C(S)/R(S) =10/ S2 +6S +10. What is the type of damping?
11. List the time domain specifications.
12. Define rise time, delay time, peak time.
13. What is steady state error?
14. What are static error constants?
15. Define position, velocity error constants.
16. What are generalized error constants?
17. List the advantages of generalized error constants.

PART B (16 Marks)

1. (a)Derive the expressions and draw the response of first order system for unit step
input. (8)
(b) Draw the response of second order system for critically damped case and when
input is unit step. (8)
2. Derive the expressions for Rise time, Peak time, Peak overshoot. (16)
3. A potential control system with velocity feedback is shown in fig. What is the
response of the system for unit step input?(16)
4. Measurements conducted on a Servomechanism show the system response to be
c(t)=1+0.2 ê 60t-1.2 ê –10 t. when subjected to a unit step. Obtain an expression for
closed loop transfer function. (16)
5. A positional control system with velocity feedback is shown in fig. What is the
response c(t) to the unit step input. Given that ς =0.5.and also calculate rise time, peak
time, Maximum overshoot and settling time.(16)
6. A unity feedback control system has an open loop transfer function G(S) = 10/S(S+2).
Find the rise time, percentage over shoot, peak time and settling time. (16)
7. A closed loop servo is represented by the differential equation, where c is the
displacement of the output shaft, r is the displacement of the input shaft and e= r-c.
Determine undamped natural frequency, damping ratio and percentage maximum
overshoot for unit step input. (16)
8. For a unity feedback control system the open loop transfer function
G(S) = 10(S+2)/ S2 (S+1).
Find (a) position, velocity and acceleration error constants.
(b) The steady state error when the input is R(S) where R(S) =3/S –2/S2 +1/3S3(16)
9. The open loop transfer function of a servo system with unity feed back system is
G(S) = 10/ S(0.1S+1).Evaluate the static error constants of the system. Obtain the
steady state error of the system when subjected to an input given by the polynomial
r(t) = a0 +a1t +a2 /2 t2 . (16)

UNIT III
FREQUENCY RESPONSE ANALAYSIS
PART – A ( 2 Marks)

1. What is frequency response analysis?
2. What is Nichol’s chart?
3. What are the two contours of Nichols chart?
4. What are the advantages of Nichol’s chart?
5. Draw the polar plot of the function G(S) =1/S(S+T1)(1+ST2)
6. Determine the Phase angle of the given transfer function
G(S) = 10 / S (1+0.4S) (1+0.1S)
7. What is polar plot?
8. Define gain cross over frequency
9. Define Phase cross over frequency
10. Define Phase Margin
11. Define Gain Margin
12. How do you calculate the gain margin from the polar plot?
13. How do you find the stability of the system by using polar plot?
14. What are the advantages of Bode plot?
15. List the Frequency domain specifications
16. What is minimum phase system?
17. What is non-minimum transfer function?
18. What is cut off frequency?
19. Compare bode plot and Nyquist plot analysis.
20. What is Bandwidth?
21.What is lag-lead compensation?
22. What is lag-lead compensator?
23. Draw electrical lag-lead compensator network
24. Write transfer function of lag-lead compensator?
25. Compare series compensator and feed back compensator

PART – B (16 Marks)

1. Plot the Bode diagram for the following transfer function and obtain the gain and
phase cross over frequencies.
G(S) = 10/ S(1+0.4S) (1+0.1S) (16)
2. The open loop transfer function of a unity feed back system is G(S) = 1/ S(1+S)
(1+2S) Sketch the Polar plot and determine the Gain margin and Phase margin. (16)
3. Sketch the Bode plot and hence find Gain cross over frequency ,Phase cross over
frequency, Gain margin and Phase margin.
G(S) = 0.75(1+0.2S)/ S(1+0.5S) (1+0.1S) (16)
4. Sketch the Bode plot and hence find Gain cross over frequency ,Phase cross over
frequency, Gain margin and Phase margin.
G(S) = 10(S+3)/ S(S+2) (S2+4S+100) (16)
5. Sketch the polar plot for the following transfer function .and find Gain cross over
frequency, Phase cross over frequency, Gain margin and Phase margin.
G(S) = 10(S+2)(S+4)/ S (S2 -3S+10) (16)
6. Construct the polar plot for the function GH(S) =2(S+1)/ S2. find Gain cross over
frequency ,Phase cross over frequency, Gain margin and Phase margin. (16)
7. Plot the Bode diagram for the following transfer function and obtain the gain and
phase cross over frequencies.
G(S) =KS2 / (1+0.2S) (1+0.02S). Determine the value of K for a gain cross over
frequency of 20 rad/sec. (16)
8. Sketch the polar plot for the following transfer function and find Gain cross over
frequency, Phase cross over frequency, Gain margin and Phase margin.
G(S) = 400/ S (S+2)(S+!0) (16)
9. A unity feed back system has open loop transfer function G(S) = 20/ S
(S+2)(S+5).Using Nichol’s chart determine the closed loop frequency response and
estimate all the frequency domain specifications. (16)
10. Sketch the Bode plot and hence find Gain cross over frequency ,Phase cross over
frequency, Gain margin and Phase margin.
G(S) = 10(1+0.1S)/ S(1+0.01S) (1+S). (16)
11. Write the short notes on correlation between the time and frequency response? (16)
12. What is compensation? Why it is needed for control system? Explain the types of
compensation? (16)
13. Realize the basic compensators using electrical network and obtain the transfer
function. (16)
14. Design a suitable lead compensators for a system with unity feedback and having
open loop transfer function G(S)= K/ S(S+1) (S+4) to meet the
specifications.(i)Damping ratio=0.5 (ii) Undamped natural frequency Wn =2 rad/sec.
(16)
15. A unity feed back system has an open loop transfer function G(S)= K/ S(S+1)
(0.2S+1).Design a suitable phase lag compensators to achieve following
specifications Kv= 8 and Phase margin 40 deg with usual notation. (16)
16. Explain the procedure for lead compensation and lag compensation? (16)
17. Explain the design procedure for lag- lead compensation. (16)
18. Consider a type 1 unity feed back system with an OLTF Gf(S) =K/S (S+1) (S+4).
The system is to be compensated to meet the following specifications Kv > 5sec and
PM>43 deg. Design suitable lag compensators

UNIT IV
STABILITY ANALYSIS
PART – A (2 Marks)
1. What are the two methods of designing a control system?
2. What is the time domain specification needed to design a control system?
3. What is the frequency domain specification needed to design a control system?
4. State Nyquist stability Criterion.
5. What is root locus?
6. What is the necessary condition for stability?
7. What is characteristic equation?
8. How the roots of characteristic are related to stability?
9. Define stability.
10. What do you mean by dominant pole?
11. What are break away points?
12. How will you find the root locus on real axis?

PART – B (16 Marks)

1. Using Routh criterion determine the stability of the system whose characteristics
equation is S4+8S3+18S2+16S+5 =0 . (16)
2. F(S)=S6 +S5-2S4-3S3-7S2-4S1-4 =0.Find the number of roots falling in the RHS plane
and LHS plane. (16)
3. Draw the Nyquist plot for the system whose open loop transfer function is
G(S)H(S) =K/S (S+2) (S+10).Determine the range of K for which closed loop
system is stable.(16)
4. Construct Nyquist plot for a feedback control system whose open loop transfer
function is given by G(S)H(S) =5/ S(1-S).comment on the stability of open loop
and closed loop transfer function.(16)
5. Sketch the Nyquist plot for a system with the open loop transfer function G(S)H(S)
=K(1+0.5S) (1+S) / (1+10S) (S-1).determine the range of values of K for which the
system is stable. (16)

UNIT V
STATE VARIABLE ANALYSIS & DIGITAL CONTROL SYSTEMS
PART – A (2 Marks)
1. What is sampled data control system?
2. Write the advantages and disadvantages of sampled data control system.
3. State sampling theorem.
4. What is periodic sampling?
5. What are hold circuits & explain it.
6. What are the problems encountered in a practical hold circuits?
7. What are the methods available for the stability analysis of sampled data control
system?
8. What are the advantages of state face analysis?
9. What are state variables?
10. What are phase variables?

PART B (16 Marks)

1. Write notes on controllability and absorbability. (16)
2. Explain sampling theorem briefly and sample & hold operation. (16)
3. Explain stability analysis of sampled control system and Jury’s stability. (16)
4. Explain state space representation for descries time system. (8)
5. Explain state space representation for continues time system. (8)
6. Explain the solution for state equation for discrete time system. (8)
7. Explain the solution for state equation for continues time system (8)
8. Explain jury’s stability test. (16)

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B.E/B.TECH.DEGREE EXAMINATION,NOV/DEC 2011

Fifth semester
Anna University
CS 2304-SYSTEM SOFTWARE
(Regulation 2008)

PART-A

1.Define system software.

2.write the abbrevation for the following:
(a)SIC (b)XE (c)CISC(d)RISC.

3.distinguish assembler and interpreter.

4.what do you mean by literal.

5.what are the functions of loader and linker?

6.define relocation?

7.write any two basic macroprocessor functions.

8.briefly write about MASM macro processor.

9.define text editor.

10.what do you mean by debugger?

PART-B

11(a) Explain the SIC machine architecture in detail.
(or)
(b) Describe the following in VAX architecture.

12(a) Discuss in detail the assembler design options.
(or)
(b) Explain machine dependent assembler features in detail.

13(a) Describe machine dependent loader features in detail.
(or)
(b) Explain the following in detail:
1.Linkage Editor
2.Dynamic Linking
3.Bootstrap Loaders.

14(a) Explain the features of machine independent macro processor in detail.
(or)
(b) Describe the following in detail:
1.Conditional macro expansion
2.MASM macro processor
3.ANSI C macro language.

15(a) Explain the editor structure with neat diagram.
(or)
(b) Discuss interactive debugging systems in detail.

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CS2353 OBJECT ORIENTED ANALYSIS AND DESIGN OOAD CS 2353 QUESTION BANK,PREVIOUS YEAR QUESTION PAPER,MODEL QUESTION PAPER:ANNA UNIVERSITY ,CHENNAI CS2353 OBJECT ORIENTED ANALYSIS AND DESIGN OOAD CS2353 SYLLABUS | 2 MARKS AND 16 MARKS QUESTIONS |OOAD 6TH SEMESTER 3RD YEAR CSE QUESTION BANK |

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B.E/B.Tech.DEGREE EXAMINATION, NOVEMBER/DECEMBER 2009

CS1402-OBJECT ORIENTED ANALYSIS AND DESIGN

Seventh Semester:

PART A:

1. Give the characteristics of object oriented system.

2. What is an object? Give an example.

3. Give a note on patterns and its necessity.

4. Mention the models in Object Modelling Techniques in Rambaugh
methodology and its role for describing the system.

5. List out the steps for finding the attributes of a class?

6. Give the hint to identify the attributes of a class?

7. Define axiom along with its types.

8. For the schema employee (emp-id, emp-name, street, city) give the class

representation along with the attribute types.

9. Mention the purpose of view layer interface.

10. What are client/server computing? Give two applications which work on this basis?

PART B- (5 X 16 = 80 marks)

11. (a) Explain and develop the payroll system using the steps of Object
oriented approach. [ Marks 16 ]
Or

(b) Explain the following
(i) Object Modelling Technique [ Marks 8 ]
(ii) Compare Aggregation and Composition with a suitable example. [ Marks 8]

12. (a) Explain the relationships that are possible among the classes in the UML
representation with your example. [Marks 16 ]

Or

(b) What are the various diagrams that are used in analysis and design steps
Of Booch Methodology? Explain with your own example. [Marks 16 ]

13. (a) Explain the method of identifying the classes using the common class
approach with an example. [ Marks 16 ]

Or

(b) Consider the Hospital Management System application with the
Following requirements
• System should handle the in-patient, out-patient information
through receptionist.
• Doctors are allowed to view the patient history and give their
prescription.
• There should be a information system to provide the required
information.
Give the use case, class and object diagrams. [ Marks 4+8+4 ]

14.(a) With a suitable example explain how to design a class. Give all possible
representation in a class (name, attribute, visibility, methods, responsibilities)[Marks 16 ]

OR

(b) Design the access layer for the Students information management which
includes personal, fees and mark details. [ Marks 16 ]

15.(a) (i) Explain the various testing strategies. [ Marks 12 ]
(ii) Give the use cases that can be used to generate the test cases
for the Bank ATM application. [ Marks 4]
or

(b) (i) How will you measure the user satisfaction? Describe. [ Marks 6 ]

(ii) Perform the satisfaction test for any client/server application. [ Marks 10]

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ARTIFICIAL INTELLIGENCE(AI)- CS2351 QUESTION BANK,PREVIOUS YEAR QUESTIONS OF ANNA UNIVERITY

noreply@blogger.com (vijaya kumar) — Sun, 19 Aug 2012 18:25:00 +0000

DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING

QUESTION BANK
SUB CODE / SUBJECT: CS1351 ARTIFICIAL INTELLIGENECE YEAR / SEM: III / VI

UNIT 1

Part A ( 2 Marks)

1) What are the approaches followed to have AI?
2) Define AI.
3) Define Agent with a diagram.
4) What is a rational agent?
5) What are the elements of an agent?
6) State the factors that make up rationality.
7) Distinguish omniscience and rationality.
8) What is a task environment?
9) What is a PEAS description?
10) Write a PEAS description for an automated taxi?
11) Write a PEAS description for a vacuum cleaner?
12) Write a PEAS description for a wumpus world?
13) What is agent program and agent architecture?
14) What is a software agent?
15) State the difference between utility function and performance measure?
16) State the difference between agent function and agent program?
17) Give the steps adopted by a problem solving agent.
18) What is a fringe?
19) How is problem solving algorithm performance measured?
20) What are the components that a node represents in a search tree?
21) What are the various search strategies adopted by agent programs?
22) Define blind search and heuristic search.
23) What are the various uninformed search?
24) Give the problem types for searching based on partial information.
25) Explain why problem formulation must follow goal formulation.
26) What is a successor function and branching factor.

Part B:

1) a. Elaborate the approaches for AI with eg. (8)
b. How is a task environment specified? (8)

2) What are the task environment natures? (16)
3) a. Describe the various properties of the task environment. (8)
b. Write PEAS description for at least four agent types. (8)
4) a. Write the environment characteristics of any four agent type. (8)
b. Explain in detail Simple reflex agent. (8)
5) Explain in detail any of the four agent structure. (16)
6) a. Explain in detail Model based reflex agent. (8)
b. Explain in detail Goal based reflex agent. (8)
7) a. Explain in detail Utility based reflex agent. (8)
b. Explain in detail Learning agent. (8)
8) Explain in detail Problem solving agent. (16)
9) a. Distinguish an agent of AI and non AI program. (8)
b. Explain tree search algorithm in detail. (8)
10) Give an example and explain the toy and real world problem. (16)
11) Explain how solutions are searched by a problem solving agent. (16)
12) a. Write short notes on the following Depth First Search, breadth first search,
uniform cost search, backtracking search. (8)
b. Write short notes on Iterative deepening depth first search. (8)
13) a. Write short notes on Depth limited search. (8)
b. State how repeated states are avoided and give an algorithm. (8)

UNIT II
SEARCHING TECHNIQUES

Part A ( 2 Marks)
1) What is informed search?
2) What is local search?
3) What are the various types of informed search?
4) When A* is optimal?
5) What is admissible heuristic?
6) What is greedy best first search?
7) What is A* search?
CS1351 ARTIFICIAL INTELLIGENCE
3
8) What is SMA* search?
9) What are the types of memory bounded heuristic search?
10) What are the factors that affect the quality of a heuristic?
11) What is a local search algorithm?
12) What are the various local search algorithm?
13) What are the problems faced by a local search algorithm?
14) What are the components of a genetic algorithm?
15) What is online search and offline search?

Part B

1) Explain any two heuristic search in detail. (16)
2) a. Explain Hill climbing in detail. (8)
b. Explain A* search in detail. (8)
3) a. Explain Simulated annealing search in detail. (8)
b. Explain Memory bounded heuristic search in detail. (8)
4) Explain any two local search algorithms in detail. (16)
5) a. Explain genetic algorithm as a local search. (8)
b. Write in detail the online search agent working using depth first exploration. (8)
6) a. Write in detail the learning of an agent in online search method. (8)
b. Explain constraint satisfaction problem with an example. (8)

UNIT III
KNOWLEDGE REPRESENTATION

Part A ( 2 Marks)
1) What are the two commitments of logic and define them?
2) What are the components of a first order logic?
3) What is the difference between the two quantifiers in the logics?
4) What is synchronic and diachronic?
5) What are casual rules?
6) What are diagnostic rules?
7) What is a model based reasoning systems?
8) What are the various steps in knowledge engineering process of a first order
logic?
9) What are the various resolution strategies?
10) What is ontological engineering?
11) What is upper ontology?

CS1351 ARTIFICIAL INTELLIGENCE
4
12) What distinguish general purpose ontology and special purpose ontology?
13) What are categories and objects?
14) What is reification?
Part B
1) Give the Syntax and Semantics of a first order logic in detail with an eg. (16)
2) a. Give the Syntax and Semantics of a first order logic for a family domain. (8)
b. Give the Syntax and Semantics of a first order logic for Numbers, Sets, Lists
domain. (8)
3) Elaborate upon the process of knowledge engineering with electronic circuits
domain. (16)
4) a. Explain in detail about the unification with an algorithm in a first order logic.

(8)
b. Explain in detail the concept of theorem provers. (8)
5) Explain forward chaining and backward chaining in detail for a first order definite
clauses. (16)
6) Explain how categories and objects are presented in any four sets. (16)
7) Elaborate upon the ontolgy for situation calculus. (16)
8) Elaborate upon the ontolgy for event calculus. (16)

UNIT IV
LEARNING

Part A ( 2 Marks)
1) What are the types of learning ?
2) What is an ensemble learning?
3) Give a simple mathematical model for a neuron.
4) What are the two choices for activation function?
5) What are the categories of neural network structures?
6) What is memoization?
7) State the factors involved in analysis of efficency gains from EBL.
8) State the design issues that affect the learning element.
9) State the factors that play a role in the design of a learning systems.
10) State the decision tree as a performance element.

Part B

1) Explain the various forms of learning. (16)
2) How is the learning process in a decision tree? (16)
3) What are the various methods of logical formulation in logical learning? (16)
4) How are explanation based learning done? (16)
5) Elaborate upon inductive logic programming. (16)
6) Write in detail the EM algorithm. (16)
7) Give an overview of a neural network. (16)
8) a. Explain multilayer feed forward neural networks with an algorithm (8)
b. Explain the nonparametric learning methods. (8)
9) How learning is done on a complete data using statistical methods? (16)

UNIT V
APPLICATIONS

Part A ( 2 Marks):

1) What are the various speech acts?
2) What is a speech act?
3) How agents do communication?
4) What are open classes and closed classes?
5) Define top down parsing by a search problem.
6) Define bottom up parsing by a search problem.
7) Why grammars are to be augmented?
8) What are the various types of ambiguity?
9) What is disambiguation?
10) What is discourse understanding and give any two subtypes?
11) What is grammar induction with an example?
12) What are the reasons for the introducing of quasi-logical form?
13) What approach the probabilistic language processing takes in language
understanding?
14) What are the various smoothing methods?
15) How information retrieval systems are characterized?
16) What is an information retrieval and information extraction?
17) What are the steps of information extraction?

Part B:

1) Elaborate on the agent communication method by action? (16)
2) a. Explain the various steps of communication. (8)
b. Explain in detail ambiguity and disambiguation in knowledge representation. (8)
3) State a formal grammar for a fragment of English. (16)
4) Explain parsing for a search problem with chart-parsing algorithm. (16)
5) Explain the methods of augmentation for a grammar of AI problem. (16)
6) Elaborate on the semantic augmentations for an English fragment including tense,
quantification and pragmatic interpretation. (16)
7) Explain quantification as a semantic interpretation in detail. (16)
8) a. Write short notes on the sub problems of discourse understanding. (8)
b. Explain in detail segmentation. (8)
9) What are the various probabilistic language models? (16)
10) Elaborate upon the information retrieval systems. (16)
11) a. Explain in detail the information extraction process. (8)
b. Explain a word segmentation algorithm. (8)
12) Explain in detail about the machine translation systems. (16)

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Anna University Results 2012 8th, 2nd, 4th, 6th Semester May/June Result 2012

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Anna University Results 2012 8th, 2nd, 4th, 6th Semester May/June Result 2012

1.Anna University 2nd, 4th, 6th, 8th semester may, june results 2012 will be declared. candidates can easily check out their anna university result 2012.

2.According the Anna University will be Declared the results may / june 2012 of 2nd, 4th, 6th, 8th semester Examiantion results 2012 will published on official web site @ www.annauniv.edu

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Data mining and Data ware housing

noreply@blogger.com (vijaya kumar) — Sat, 18 Aug 2012 17:28:00 +0000

Data Mining: What is Data Mining?

Overview

Generally, data mining (sometimes called data or knowledge discovery) is the process of analyzing data from different perspectives and summarizing it into useful information - information that can be used to increase revenue, cuts costs, or both. Data mining software is one of a number of analytical tools for analyzing data. It allows users to analyze data from many different dimensions or angles, categorize it, and summarize the relationships identified. Technically, data mining is the process of finding correlations or patterns among dozens of fields in large relational databases.

Continuous Innovation

Although data mining is a relatively new term, the technology is not. Companies have used powerful computers to sift through volumes of supermarket scanner data and analyze market research reports for years. However, continuous innovations in computer processing power, disk storage, and statistical software are dramatically increasing the accuracy of analysis while driving down the cost.

Example

For example, one Midwest grocery chain used the data mining capacity of Oracle software to analyze local buying patterns. They discovered that when men bought diapers on Thursdays and Saturdays, they also tended to buy beer. Further analysis showed that these shoppers typically did their weekly grocery shopping on Saturdays. On Thursdays, however, they only bought a few items. The retailer concluded that they purchased the beer to have it available for the upcoming weekend. The grocery chain could use this newly discovered information in various ways to increase revenue. For example, they could move the beer display closer to the diaper display. And, they could make sure beer and diapers were sold at full price on Thursdays.

Data, Information, and Knowledge

Data

Data are any facts, numbers, or text that can be processed by a computer. Today, organizations are accumulating vast and growing amounts of data in different formats and different databases. This includes:

operational or transactional data such as, sales, cost, inventory, payroll, and accounting

nonoperational data, such as industry sales, forecast data, and macro economic data

meta data - data about the data itself, such as logical database design or data dictionary definitions

Information

The patterns, associations, or relationships among all this data can provide information. For example, analysis of retail point of sale transaction data can yield information on which products are selling and when.

Knowledge

Information can be converted into knowledge about historical patterns and future trends. For example, summary information on retail supermarket sales can be analyzed in light of promotional efforts to provide knowledge of consumer buying behavior. Thus, a manufacturer or retailer could determine which items are most susceptible to promotional efforts.

Data Warehouses

Dramatic advances in data capture, processing power, data transmission, and storage capabilities are enabling organizations to integrate their various databases intodata warehouses. Data warehousing is defined as a process of centralized data management and retrieval. Data warehousing, like data mining, is a relatively new term although the concept itself has been around for years. Data warehousing represents an ideal vision of maintaining a central repository of all organizational data. Centralization of data is needed to maximize user access and analysis. Dramatic technological advances are making this vision a reality for many companies. And, equally dramatic advances in data analysis software are allowing users to access this data freely. The data analysis software is what supports data mining.

What can data mining do?

Data mining is primarily used today by companies with a strong consumer focus - retail, financial, communication, and marketing organizations. It enables these companies to determine relationships among "internal" factors such as price, product positioning, or staff skills, and "external" factors such as economic indicators, competition, and customer demographics. And, it enables them to determine the impact on sales, customer satisfaction, and corporate profits. Finally, it enables them to "drill down" into summary information to view detail transactional data.

With data mining, a retailer could use point-of-sale records of customer purchases to send targeted promotions based on an individual's purchase history. By mining demographic data from comment or warranty cards, the retailer could develop products and promotions to appeal to specific customer segments.

For example, Blockbuster Entertainment mines its video rental history database to recommend rentals to individual customers. American Express can suggest products to its cardholders based on analysis of their monthly expenditures.

WalMart is pioneering massive data mining to transform its supplier relationships. WalMart captures point-of-sale transactions from over 2,900 stores in 6 countries and continuously transmits this data to its massive 7.5 terabyte Teradata data warehouse. WalMart allows more than 3,500 suppliers, to access data on their products and perform data analyses. These suppliers use this data to identify customer buying patterns at the store display level. They use this information to manage local store inventory and identify new merchandising opportunities. In 1995, WalMart computers processed over 1 million complex data queries.

The National Basketball Association (NBA) is exploring a data mining application that can be used in conjunction with image recordings of basketball games. TheAdvanced Scout software analyzes the movements of players to help coaches orchestrate plays and strategies. For example, an analysis of the play-by-play sheet of the game played between the New York Knicks and the Cleveland Cavaliers on January 6, 1995 reveals that when Mark Price played the Guard position, John Williams attempted four jump shots and made each one! Advanced Scout not only finds this pattern, but explains that it is interesting because it differs considerably from the average shooting percentage of 49.30% for the Cavaliers during that game.

By using the NBA universal clock, a coach can automatically bring up the video clips showing each of the jump shots attempted by Williams with Price on the floor, without needing to comb through hours of video footage. Those clips show a very successful pick-and-roll play in which Price draws the Knick's defense and then finds Williams for an open jump shot.

How does data mining work?

While large-scale information technology has been evolving separate transaction and analytical systems, data mining provides the link between the two. Data mining software analyzes relationships and patterns in stored transaction data based on open-ended user queries. Several types of analytical software are available: statistical, machine learning, and neural networks. Generally, any of four types of relationships are sought:

Classes: Stored data is used to locate data in predetermined groups. For example, a restaurant chain could mine customer purchase data to determine when customers visit and what they typically order. This information could be used to increase traffic by having daily specials.

Clusters: Data items are grouped according to logical relationships or consumer preferences. For example, data can be mined to identify market segments or consumer affinities.

Associations: Data can be mined to identify associations. The beer-diaper example is an example of associative mining.

Sequential patterns: Data is mined to anticipate behavior patterns and trends. For example, an outdoor equipment retailer could predict the likelihood of a backpack being purchased based on a consumer's purchase of sleeping bags and hiking shoes.

Data mining consists of five major elements:

Extract, transform, and load transaction data onto the data warehouse system.

Store and manage the data in a multidimensional database system.

Provide data access to business analysts and information technology professionals.

Analyze the data by application software.

Present the data in a useful format, such as a graph or table.

Different levels of analysis are available:

Artificial neural networks: Non-linear predictive models that learn through training and resemble biological neural networks in structure.

Genetic algorithms: Optimization techniques that use processes such as genetic combination, mutation, and natural selection in a design based on the concepts of natural evolution.

Decision trees: Tree-shaped structures that represent sets of decisions. These decisions generate rules for the classification of a dataset. Specific decision tree methods include Classification and Regression Trees (CART) and Chi Square Automatic Interaction Detection (CHAID) . CART and CHAID are decision tree techniques used for classification of a dataset. They provide a set of rules that you can apply to a new (unclassified) dataset to predict which records will have a given outcome. CART segments a dataset by creating 2-way splits while CHAID segments using chi square tests to create multi-way splits. CART typically requires less data preparation than CHAID.

Nearest neighbor method: A technique that classifies each record in a dataset based on a combination of the classes of the k record(s) most similar to it in a historical dataset (where k 1). Sometimes called the k-nearest neighbor technique.

Rule induction: The extraction of useful if-then rules from data based on statistical significance.

Data visualization: The visual interpretation of complex relationships in multidimensional data. Graphics tools are used to illustrate data relationships.

What technological infrastructure is required?

Today, data mining applications are available on all size systems for mainframe, client/server, and PC platforms. System prices range from several thousand dollars for the smallest applications up to $1 million a terabyte for the largest. Enterprise-wide applications generally range in size from 10 gigabytes to over 11 terabytes.NCR has the capacity to deliver applications exceeding 100 terabytes. There are two critical technological drivers:

Size of the database: the more data being processed and maintained, the more powerful the system required.

Query complexity: the more complex the queries and the greater the number of queries being processed, the more powerful the system required.

Relational database storage and management technology is adequate for many data mining applications less than 50 gigabytes. However, this infrastructure needs to be significantly enhanced to support larger applications. Some vendors have added extensive indexing capabilities to improve query performance. Others use new hardware architectures such as Massively Parallel Processors (MPP) to achieve order-of-magnitude improvements in query time. For example, MPP systems from NCR link hundreds of high-speed Pentium processors to achieve performance levels exceeding those of the largest supercomputers.

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Anna University Question Papers

noreply@blogger.com (vijaya kumar) — Fri, 25 Nov 2011 20:22:00 +0000

I have provided question bank for departments like Computer Science, Electronics and Communication, Electrical and Electronics, Civil, Information Technology, Mechanical, Electronics and Instrumentation and few other departments..

question bank contains previous year question papers of regulation 2007,2008 and 2009 paper of all semester..with 2 mark question of all subjects...

Question bank for Computer Science (CSE) Department:-

For CSE all semester question papers click here

Theory of Computation - Click here
System Software - Click here
Object Oriented Programming - Click here
Object Oriented Analysis and Design - Click here
Microprocessor - Click here
Internet Programming - Click here
Data structure and Algorithm - Click here
DBMS - Click here
Cryptography and Network Security - Click here
Computer Networks - Click here
Data structure - Click here
Operating System - Click here
Software Engineering - Click here
Analog and Digital Communication - Click here

Question Bank for Electronic and Electrical Engineering
(EEE) department:-

For EEE all semester question papers click here

Electronic Circuits - CLICK HERE
Inter networking Technology - CLICK HERE
Power System Analysis - CLICK HERE
Neural Networks and Fuzzy Logic Control - CLICK HERE
Transmission and Distribution - CLICK HERE
Control Engineering - CLICK HERE
Solid State Drives - CLICK HERE

Question Bank for Electronics and Communication (ECE)department:-

For ECE all semester question papers click here

Transmission Lines and Wave Guides - CLICK HERE
Microwave Engineering - CLICK HERE
Principles of Communication - CLICK HERE
Professional Ethics and Human Values - CLICK HERE
Environmental Science and Engineering - CLICK HERE
Electronic Circuits - CLICK HERE
Signals and Systems - CLICK HERE
Digital Image Processing - CLICK HERE
VLSI Design - CLICK HERE
Communication Engineering - CLICK HERE
Digital Signal Processing - CLICK HERE
Digital Electronics - CLICK HERE
Communication Theory - CLICK HERE
Computer Networks - CLICK HERE
Satellite Communication - CLICK HERE
Radar and Navigational Aids - CLICK HERE
Electromagnetic Theory - CLICK HERE
Linear Integrated Circuits - CLICK HERE
Antenna Wave Propagation - CLICK HERE
Mobile Communication - CLICK HERE
Electronics Circuits II - CLICK HERE
Principles of Management - CLICK HERE
Optical Communication - CLICK HERE
Digital Communication - CLICK HERE

Question Bank for Mechanical Engineering (MECH) department.

For MECH all semester question papers click here

Question Bank for Information Technology (IT) department.

For IT all semester question papers click here

Date Warehousing and Mining - CLICK HERE
Visual Programming - CLICK HERE
Digital Principle and System Design - CLICK HERE
Operating System - CLICK HERE
Database Management System - CLICK HERE
Data Communication - CLICK HERE
Digital Image Processing - CLICK HERE
E-Commerce - CLICK HERE
Information Coding Techniques - CLICK HERE
Digital Signal Processing - CLICK HERE
Cryptography and Network Security - CLICK HERE
Web Technology - CLICK HERE
Principles of Management - CLICK HERE

Cryptography & network Security 16 marks questions

noreply@blogger.com (vijaya kumar) — Tue, 22 Nov 2011 14:05:00 +0000

Important 16 Marks Questions In IT2352 & Cryptography & network Security

Explain in detail about any four substitution techniques
Explain in detail about OSI Security Architecture?
Explain playfair cipher & vernam cipher in detail ?
Explain briefly about data encryption standard & types of attacks on double &TripleDES
Discuss in detail RSA algorithm , highlighting its computational aspect and security.
Perform decryption and encryption using RSA algorithm with p=3 q=11 e=7 and M=5.
How discrete logarithm is evaluated for a number? What is the role of discrete logarithms in the Diffie-Hellman key exchange in exchanging the secret key among two users?
Describe the MD5 message digest algorithm with necessary block diagram
Explain the operational description of S/MIME
Explain in detail operation of Transport layer security in detail
Explain in detail about IP Security with neat diagram
Explain in detail about Malicious Software
Write short notes on Intrusion detection
Explain in detail about Password Management

DATA STRUCTURES QUESTION BANK FOR CSE

noreply@blogger.com (vijaya kumar) — Tue, 22 Nov 2011 11:56:00 +0000

DATA STRUCTURES QUESTION BANK

Important Questions in Data Structures NOV/DEC 2011 ANNA UNIVERSITY OF TECHNOLOGY EXAMINATIONS FOR SECOND YEAR THIRD SEMESTER CSE Students

141301 - Data Structures

UNIT I

1. Explain the addition and deletion operation performed on a circular queue with necessary algorithm

2. Write an algorithm for push and pop operation on stack using linked list

3. Explain the complete set of stack operation

4. Write the insertion and deletion operations singly and doubly linked list

UNIT II

1. Write an algorirhm for pre-order and postorder traversal of a binary tree.

2. Describe the algorithm used to perform single and double rotation on AVL tree

3. Write an ADT binary search tree

4. Explain heap structures. How are binary heaps implemented? Give its algorithm with example

UNIT III

1. Discuss in detail the B-tree.What are its advantage.

2. Define Tree. Explain the tree traversals with algorithms and examples

3. Describe circular queue implementation in detail giving all the relevant features

4. Explain the concept of insertion and deletion of elements from a Max Heap. Illustrate with suitable algorithms

UNIT IV

1. Explain separate chaining and extensible hashing.

2. Formulate an ADT to perform for the union and find operation of disjoint set

3. Show the result of inserting keys 2,3,5,7,11,13,15,6,4 into an empty extendible hashing data structure with M=3

4. What is union by height?Write an algorithm to implement it

5. Explain path compression with an example

UNIT V

1. What is minimum spanning tree?Explain the algorithm using prim’s and kruskals with an example.

2. Write an dijkstra’s algorithm with an example.

3. Explain DFS and BFS with an example.

4. Explain topological sort with an example

Data Structures & Algorithms For IT

noreply@blogger.com (vijaya kumar) — Tue, 22 Nov 2011 11:54:00 +0000

Data Structures & Algorithms

Important Questions in Data Structures & Algorithms 142301

ANNA UNIVERSITY OF TECHNOLOGY EXAMINATIONS FOR SECOND YEAR THIRD SEMESTER IT Students

UNIT I

1. What is Stack? Give the implementations of stack and explain clearly the data structure and

routines used.

2. What is singly linked list? Explain the algorithm in detail about various operations performed on a node from a Singly Linked list

3. Illustrate with a neat example the implementation of a circular queue

UNIT II

1. With an example explain the algorithms of inorder and postorder traversals on a binary search

2. Explain the binary heap in detail.

3. Explain the rotations operations which are done in AVL-Tree. Construct the AVL Tree for the

following 18,26,9,47,54,32,12,58,30,60,44,74,33,55

4. Explain the tree traversals in detail

UNIT III

Discuss in detail open addressing and rehashing

2. Explain in detail the collision resolution methods.

3. What is meant by collision in hashing? Explain the separate chaining collision resolution strategy.

4. Explain in detail about Extensible hashing

UNIT IV

1. Explain in detail about DIjkstra’s Algorithm with an example

2. Explain in detail about DFS and BFS Techniques with an example

3. Explain the prim’s and Kruskal’s Algorithm with an example

UNIT V

1. Explain in detail about Divide and conquer Algorithm with an example.

2. Explain in detail about Dynamic Programming with an example

3. Explain in detail about Greedy Algorithm with an example

4. Explain in detail about Backtracking Algorithm with an example

Analog and digital Communication-141302

noreply@blogger.com (vijaya kumar) — Tue, 22 Nov 2011 08:01:00 +0000

ANNA UNIVERSITY OF TECHNOLOGY EXAMINATIONS FOR SECOND YEAR THIRD SEMESTER CSE Students

141302 - Analog and digital Communication

UNIT I

1. Explain how Carson’s rule of bandwidth in FM is obtained. For an FM modulator with peak frequency deviation f=5 kHz modulating frequency f_m=5kHz, with amplitude of carrier 5V and frequency 500 kHz, determine the bandwidth using Carson’s rule

2. Derive an expression for a single tone FM signal and draw its frequency spectrum.

3. Define amplitude modulation. Drive the relation between the total transmitted power and carrier power in an AM system when several frequencies simultaneously modulated acarrier.

4. Define FM and PM modulation, derive their equations.

5. In angle modulation, explain frequency devation, percentmodulation, phase deviation and modulation index with suitable example.

UNIT II

1. Explain with neat diagrams the FSK technique, transmitter and receiver blocks

2. With neat diagram explain the generation of a DPSK signal and recovering the data from

the DPSK signal

3. Explain quadrature amplitude modulation with the help of relevant diagrams.

4. Discuss the QPSK transmission system with relevant diagrams.

UNIT III

1. Explain PCM and differential PCM with the help of block diagrams.

2. Explain the basic principle of quantization and quantization error

3. What are the drawbacks of delta modulation and how are they overcome in adaptive delta

modulation? explain with the help of a neat block diagram

4. Describe DPCM transmitter and receiver with suitable block diagram.

UNIT IV

1. Explain the detail about the parallel interface with control signals and timing information

2. Explain the different types of data transmission

3. How are errors detected and corrected in data communication?

4. Discuss the following : Synchronous modem , Asynchronous modem ,Low speed modem ,medium and high speed modem

UNIT V

1. Explain fast and slow frequency hopping techniques used in spread spectrum.

2. With help of neat block diagram, explain DS spread spectrum system with coherent binary PSK

3. Compare TDMA,FDMA CSMA multiple access techniques.

4. Explain the working of multi pulse excited LPC and code excited LPC by suitable Diagrams

5. For a linear feedback shift register with three stages (m=3),evaluate the maximum length PN sequence for feedback taps =(3,1).Draw the schematic arrangement and verify all the properties of PN sequence in generated output. Sketch the sequence, its autocorrelation function and PSD function if chip rate is 10MHz.

CS2303 – Theory Of Computations Important Questions For V SEMESTER CSE

noreply@blogger.com (vijaya kumar) — Sat, 19 Nov 2011 17:39:00 +0000

CLICK HERE