GATE 2024 Mechanical Engineering

GATE Previous Year Old Question Papers (Free Download)

2023-02-15T19:38:00.003+05:30

This article allows you to have a look at GATE Previous Year Old Question Papers of Mechanical Engineering which can be freely downloadable here and can be useful for the next GATE 2024 exam. I want to thank the gate forum and education observer for getting free question papers related to previous GATE exams.

You can get higher marks by doing smart preparation which starts from solving previous GATE exam question papers. You can even start preparation from any year of graduation, first, second, pre-final or final year.

Download the papers, look for the new GATE 2024 syllabus contents, and write down the topic name only in one separate note for each subject.

Now take each subject and prepare each one by one. Pay attention to those topics that are not familiar to you and leave those topics that you already know So you can save your precious time while doing GATE 2024 preparation effectively. Once you get all the papers and classifications of each topic as per the subject, you can see the percentage weightage of that subject in GATE Mechanical. Thus, you need to do some research to get into which is the most important subject or topic for GATE mechanical engineering.

Download all the Previous year's GATE papers

Free GATE study material

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GATE 2024 exam preparation tips

2023-02-09T18:54:00.002+05:30

Are you looking for how to prepare for the GATE 2024 examination? You must follow and apply the common experience of your seniors and teachers to get an idea about what should and what should not prepare for GATE.

Normally students believe that if they attempt all the questions, they might get a maximum score but they should keep in mind that the GATE exam keeps negative marking for each wrong answer and deducts about 33.33 % of the total marks allotted to that question to which you gave the wrong answer. Follow the GATE tips and get a good score.

Before starting anything about GATE, First, understand what is GATE? Know its importance, date, eligibility, and recent changes. (Best book to prepare for GATE 2024)
First, start your preparation right from the day you want to prepare for it. The beginning is half success. If you wait for some good day to start, that good day will never come and ultimately you will lose/waste your time unnecessarily.
Collect the GATE 2024 Syllabus copy and find the subjects asked during the examination
Divide the subjects based on past questions and mark the importance of each subject.
Normally GATE paper consists of those questions that are related to specialization in M. Tech and M.E.
When you start your preparation, just concentrate on the concept, not on theory derivation.
Have previous year's questions papers handy to know which type of questions can be asked in the exam
Concentrate on the topics that you skipped or do not know in the syllabus during your graduation. This is the right time to prepare for it. Normally the exam will contain those questions that you do not know!!!
Do not re-read the topics that you already know. this will waste your time.
Make a separate note of equations with 2 marks and grasp it along with its concepts.
Take participation in a mock test for the GATE examination which can be available online.
Do not waste time on unnecessary activities like gossip, TV, or internet surfing. Because the time you are wasting will never come back and you need to wait for another year for the same examination. So, understand well this saying, "Time and Tide wait for none"

If you are interested to download Free Gate Study material, you can download it from this link (GATE 2024 free study material).

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What is the meaning of Valid GATE Score and GATE percentile?

2023-02-02T16:57:00.001+05:30

Normally every GATE-qualified student who wishes to give GATE exam, asks these types of questions, "What is the meaning of a Valid GATE Score and GATE percentile? ".

(1) What is the meaning of a Valid GATE Score?

There are a few confusing matters about the GATE score and the Valid GATE score. Normally GATE score is valid for two years. Suppose you have given GATE in 2014, your GATE score (qualified) is valid for the year 2014 and 2015 admission or job.

Now, still, a question, what is a Valid GATE score?

If you have obtained/secured marks equal to or greater than the qualifying marks of that year's GATE exam, you are said to have a valid GATE score and you are eligible to apply for a job or admission into masters for the year 2014 as well as that of the year 2015.

For, GATE 2014, Mechanical Engineering, qualifying marks were 28.86 for the General category. So, in order to be a valid GATE score holder, you should have at least 28.86 marks or greater than that (if you are a General category candidate). If you secured, less than 28.86 marks in ME for the year GATE 2014, you are not qualified for a Valid GATE scorecard. GATE scorecard is valid only if you have at least secured qualifying marks for that year (Normally organizing institute does not send scores to a card that does not qualify!).

For example, if you got 28.55 marks as a general category student in GATE 2014 exam, you are not eligible to get Scorecard and you are called disqualified. Even in the next year GATE 2015, if qualifying marks are less than what you obtained in 2014 i.e. 28.55, your score is INVALID.

(2) What is the meaning of the GATE Percentile?

In simple, words, the GATE percentile gives the idea of exactly where you stand out of the total qualified GATE score holders/candidates. GATE percentile can be calculated from two pieces of information. (a) Your All India GATE Rank (AIR) (b) Total number of candidates who appeared in that stream

GATE Percentile = (Total number of candidates appeared in that stream)-(Your AIR)/ (Total number of candidates appeared in that stream) x 100

If your AIR is 2112 (in ME) and the total number of candidates who appeared in ME during that year are 188253.

Your percentile is : (188253-2112)/188253 = 98.88 percentile!

This 98.88 shows that you are in the top 1.12 % of students.

So, start preparing for GATE now and aim to get more marks than GATE 2014's qualifying marks.

Free GATE 2024 study material related to applied mechanics and design

2023-01-21T12:44:00.002+05:30

As GATE 2014 syllabus contains the following major subjects which are classified into four groups.

Engineering Mathematics
Applied Mechanics and Design
Fluid Mechanics and Thermal Science
Manufacturing and Industrial Engineering

Click on each name of the subject and download the appropriate ebook to get the study material. Print each book having the same content which is given in the GATE Mechanical Engineering syllabus. There is no need to print the complete book but part of it which is common in the GATE syllabus of appropriate part.

Here I am sharing free study material which contains the following free E-books of

1. Mechanics of Solids

Mechanics of Solids include 'Engineering Mechanics and Strength of Materials

Engineering Mechanics:
Free body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations; impact.

Strength of Materials:
Stress and strain, stress-strain relationship and elastic constants, Mohr’s circle for plane stress and plane strain, thin cylinders; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular shafts; Euler’s theory of columns; strain energy methods; thermal stresses.

2. Machine Design

Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted, and welded joints, shafts, spur gears, rolling and sliding contact bearings, brakes, and clutches.

3. Theory of Machines

Displacement, velocity, and acceleration analysis of plane mechanisms; dynamic analysis of slider-crank mechanism; gear trains; flywheels.

4. Mechanical Vibration

Free and forced vibration of single degree of freedom systems; effect of damping; vibration isolation; resonance, critical speeds of shafts.

Important topics in GATE 2024 : Mechanical Engineering Part-3

2023-01-20T11:28:00.003+05:30

Important topics in GATE 2024: Mechanical engineering Part-1

DC/AC welding, straight and reverse polarity (Welding Technology - manufacturing)
Shaft and hole, tolerance and interference (Machine Design)
Milling table speed, turning and drilling speed, feed rate ( manufacturing)
Centrifugal casting (manufacturing)
NC machines (manufacturing)
Gas turbine cycles, reheating processes (Power plant engineering)
Regeneration and co-generation (Power plant engineering)
Properties of Refrigerant (Refrigeration)
Radiative heat transfer, Stefan Boltzmann constant. (Heat and mass transfer)
Equivalent evaporation of boiler and enthalpy of evaporation (Power plant engineering)
Cavitation and vapor pressure (Thermodynamics-Fluid mechanics)
Mohr’s circle radius (Strength of Materials)
Strain energy due to bending (Strength of Materials)
No of degree of freedom (Theory of Machines)
Soderberg equation (Machine Design)

Important topics in GATE: Mechanical engineering Part-2

Important topics in GATE 2024 : Mechanical Engineering Part-1

2023-01-18T19:50:00.001+05:30

The following topics are important from the exam point of view. The word given in bracket suggests the subject of that topic.

Carburization (Metallurgy)
Shear force in riveted joint (Machine Design)
Current requirement in spot welding (Joining method)
Sheet metal working (Joining method)
Low carbon steel (Metallurgy)
Rake angle’s effect (Theory of metal cutting)
Mean friction angle (Theory of metal cutting)
Tool geometry, Tool signature (Theory of metal cutting)
Single cutting point tool (Theory of metal cutting)
ECM electrodes (Modern machining methods)
Point to point cutting NC system (CAD/CAM)
Boiler rating (Power plant application)
Steam and vapor cycle, Rankine cycle (Power plant application)
Brake thermal efficiency (Thermodynamics)
Diffuser, super and subsonic diffuser geometry (Turbomachinery)

Important topics in GATE 2024: Mechanical Engineering Part-3

Important topics in GATE 2024 : Mechanical Engineering Part-2

2023-01-17T21:20:00.001+05:30

Specific speeds of pumps and turbines (Fluid machines)
Unit speeds of pumps and turbines (Fluid machines)
Thermal efficiency (Thermodynamics, Power Plant)
Heat transfer from fin, insulated tips (Heat transfer)
COP of refrigeration and heat pump (Refrigeration)
Deformation (Strength of Materials)
Instantaneous center (Theory of machines)
Spherical roller bearing ( Machine Design)
Fatigue strength ( Machine Design)
Iron-carbon diagram (Metallurgy)
Casting types and design of castings (Manufacturing)
Type of non-conventional processes (Manufacturing)
Pitot tubes, Mcloyed gauge, planimeter, LVDT (Measurement systems)
Unit speed of turbines(Fluid machines)
Bernoulli's equation (Fluid mechanics)

Important topics in GATE 2024: Mechanical engineering Part-1

Important topics in Mechanical Engineering asked during GATE-2001

2023-01-15T18:46:00.000+05:30

The present article provides important topics that have been already asked in previous GATE 2001 examinations and these topics should be given preference to get more score in GATE 2013. Follow the article and note down topic and be ready for it.

Divergence
Gauss divergence theorem
Bending moment diagram
Moment of inertia for a square cross section
Joule Thompson coefficient
Cutting forces in punching and blanking operation
ECM

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Butt weld

Allowances and fits

Efficiency of Carnot engine

Static pressure on fluid

Relative humidity

Prandtl number

3-2-1 method of jig

NC programming steps

Gear train

EOQ

Nozzle analysis

Important topics in Mechanical Engineering asked during GATE-2000

2023-01-14T18:45:00.000+05:30

The present article provides important topics that have been already asked in previous GATE 2000 examinations and these topics should be given preference to get more score in GATE 2013. Follow the article and note down topic and be ready for it.

Availability of system
Vapor compression cycle
Critical thickness of insulation
Pressure compounding turbine
Power and speed relation for pump
Navier stoke equations
Abrasive material for grinding
Disposable pattern in casting
Deep hole drilling
Cast steel
Sonic veleocity
Throttling
Pressure ratio in petrol and diesel cycle
Life of roller bearing
LMTD
Fit and tolerance
Newton Raphson method
Gas turbine cycle
Full journal bearing
Simplex method
PERT
EOQ
Break even analysis

Important topics in Mechanical Engineering asked during GATE-1999

2023-01-13T18:43:00.000+05:30

The present article provides important topics that have been already asked in previous GATE 1999 examinations and these topics should be given preference to get more score in GATE 2013. Follow the article and note down topic and be ready for it.

Rank of matrix
Del operator
Theory of failure
Air standard cycles
COP of refrigerator and heat pump
Kinematic viscosity
Shrinkage allowance for casting
Newton raphson method
Mach number

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Pressure vessel design

Isolated system

Cooling and humidification

Tool signature

EOQ

Specific speed for pump

Entropy

Gate design for casting

Merchant’ circle diagram (theory)

Refrigerating effects

Important topics in Mechanical Engineering asked during GATE-1998

2023-01-12T18:42:00.000+05:30

The present article provides important topics that have been already asked in previous GATE 1998 examinations and these topics should be given preference to get more score in GATE 2013. Follow the article and note down topic and be ready for it.

Infinite series
Gradient of function
Probability of two friend share a same birthday
Linear motion (velocity and accelerator)
Maximum principal stress
Buckling load for column
Average and maximum shear stress for square cross-section
Reaction stage, Ratue stage, Curtis stage

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Grain size, polycrystalline

Fits and tolerance

Chills for castings

Principal strain

Isentropic heat drop in nozzle

Discharge velocity at the pipe exit

Tool Signature

Mean speed of flywheel

Rankine cycle

LMTD

Important topics in Mechanical Engineering asked during GATE-1997

2023-01-11T18:40:00.000+05:30

The present article provides important topics that have been already asked in previous GATE 1997 examinations and these topics should be given preference to get more score in GATE 2013. Follow the article and note down topic and be ready for it.

Continuous and discontinuous functions
Infinite series
Simultaneous equation
Rank of matrix
Simpson’s rule
Specific speed of centrifugal pump
Boiler mounting
Second law of thermodynamics and entropy
Alloying elements in steel
Lead angle in power screw
Helix angle of fast helix drill
ECM (Electro Chemical Machining)

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Dummy activity in PERT

Pressure measurement by manometer

Reynold’s number

Effectiveness of heat exchanger

Single stage impulse turbine

Workdone for compressor

Clearance ratio for hydrodynamic journal bearing

Cutting tool radius

Dynamic load capacity for roller bearing

Weber number, Biot number, Mach number

Log Mean Temperature Difference (LMTD)

Specific speed turbine

Poisson distribution

Brake thermal efficiency

EOQ (Economic Order Quantity)

Important topics in Mechanical Engineering asked during GATE-1996

2023-01-09T14:50:00.000+05:30

These are the important questions asked during previous year exam i.e. GATE 1996 Mechanical

These topics suggests that based on these topics, questions were asked.

Complex numbers
Curl grad
One dimensional heat conductions
Gauss elimination method
Principal stress and strain
Hydrodynamics journal bearing
Impact collision of elastic bodies
Specific heat
Reversible adiabatic process
Ericson cycle
Turbulent flow
Surface tension

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Rake angle

Hole-shaft system

Eigen value and eigen vector

Iron carbon diagram and TTT (Time – Temperature-Transformation) diagram

Bending moments

Natural frequency

Thermal efficiency of heat engine

Pressure drop in laminar flow

Critical thickness of insulation

Taylor’s equation for machine tool

Punch

Gear train

Velocity diagram for turbine

Casting examples

Important topics in Mechanical Engineering asked during GATE-1995

2023-01-08T07:35:00.000+05:30

Followings are important topics (For Complete Syllabus) that have been asked in previous GATE Exam (1995). This topics may include MCQ as well as 2 marks questions.

Economic Order Quantity
PERT
Statistical Quality Control
Cutting power consumptions in turning
Plain Milling
Newtonian fluid
COP of refrigerator and heat pump
Mollier diagram
Flange coupling
Thermal stress
MRP/EOQ

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Entropy for irreversible process

Pure positive bending

Undamped natural frequency

Slip gauges

Gyroscopic effects

Rankine cycle with superheat

Specific speed of impulse and reaction turbine

Maxima and minima

Laplace transforms

Hydrostatic force

Entropy change

Availability and irreversibility

Pulley blocks

Important topics in Mechanical Engineering asked during GATE-1994

2023-01-07T13:43:00.000+05:30

Mathematics

Limit
Mean value theorem
Linear differential equation
Rank of matrices

Design

Euler’s critical buckling load
Tensile forces
Period of oscillation
Power transmitted by shafts
Condition for self locking in screw jacks
Hook’s law, kepler’s law,
Tresca criteria

Machine Tools

EDM (Electro Discharge machining)
ECM (Electro Chemical Machining)

Joining

Coating to arc welding electrodes
Natural flame in gas welding
Oxygen to acetylene ratio

Metal working

Hot and cold working process
Deep drawing of sheets
Drop forging
Extrusion

Casting

Investments die casting
Centrifugal casting
Shell moulding

Power Plant

Condenser
Rankine cycle

Fluid machines

Impulse turbine
Specific speed of pumps

Fluid Mechanics

Steam lines, path lines, steak lines
Equipotential lines
Prandlt’s mixing length
Velocity potential
Meta centre
Circulation
Froude number, Reynolds number
Ratio of maximum velocity to average velocity for pipe flow
Head loss in pipe due to friction
Bernoulli’s equation and continuity equation
Venturimeter
Laminar to turbulent transition
Separation of boundary layer
Hydrodynamic boundary layer

Heat and mass transfer

Thermal conductivity
Shape factor, view factor

Refrigeration

Coefficient of performance

Strength of material

Ratio of maximum shear stress to average shear stress in rectangular section

Thermodynamics

Definition of Kelvin
Gas turbine cycle
Stirling cycle
Atkinson cycle
Ericson cycle
Brayton cycle
Isothermal compressibility, isentropic compressibility
Joule Thompson coefficient
Isobaric thermal expansion coefficient

Engineering Mechanics

Tension in rotating mass
Motion of projectile
Force of friction
Collision’s of elastic bodies

Important topics in Mechanical Engineering asked during GATE-1993

2023-01-06T13:41:00.000+05:30

Design

Shaft, hole and interference
Radius of Mohr’s circle
Shaft design
Soderberg’s equation

Machine Tools

Ultrasonic machining method
Feed rate, milling table speed

Joining

DC Welding, straight and reverse polarity

Casting

Centrifugal casting

Power Plant

Equilibrium evaporation of boiler, enthalpy of evaporation

CAD/CAM/CIM

NC Machine post processor

Turbo machinery/Thermal Engineering

Gas turbine cycle-reheating process
Cavitations’ in turbine

Fluid Mechanics

Specific speed variations for Kaplan Turbine

Heat and mass transfer

Radiative heat transfer, Stephan Boltzmann constant
Critical Thickness of insulation

Refrigeration

Refrigerating capacity
R-22 Refrigerant

Theory of Machines

No of degree of freedom

Industrial Engineering

Normal performance and standard time

Strength of material

Strain energy due to bending

Important topics in Mechanical Engineering asked during GATE-1992

2023-01-05T13:38:00.000+05:30

Metallurgy

Carburization
Iron Carbon diagram
True strain, Low carbon steel, forging

Design

Shear forces in riveted joint
Tolerances
Spherical Roller Bearing
Fatigue strength

Machine Tools

Effect of rake angle and mean friction angle
Material Removal Rate (MRR) in ultrasonic machining method
Electrodes used in Electro Chemical Machining (ECM)
Horizontal machining process
Types of non-conventional machining processes

Joining

Current requirement in spot welding
Sheet metal working
Explosive welding

Casting

Uniform ramming and green sand moulding
Types of casting

Power Plant

Boiler rating

Thermodynamics

Steam and vapor cycle
Brake thermal efficiency

CAD/CAM/CIM

NC System, Point to Point machining

Turbo machinery

Diffuser, super and sub sonic diffuser geometry
Thermal efficiency of Jet engines

Fluid Mechanics

Specific speed of rotary pump
Flow over flat plate

Heat and mass transfer

Heat transfer from insulated tip from pin fin

Refrigeration

Coefficient of Performance (COP)

Theory of Machines

Instantaneous centre of rotation

Vibration

Damping transmissibility

Mechanical Measurement

Pitot tube, Mclead Gauge, Planimeter, LVDT

Production, Planning and Control

X chart, C chart P chart

Dos and Donts in GATE 2024 Examination

2023-01-04T13:37:00.002+05:30

You need to prepare selected topics of the syllabus of the particular specialization you are supposed to give an examination whether it is mechanical, electrical, or any other specialization. Refer to the old question papers and note down the important topics asked. Never try to read and remember the complete syllabus because it will require more time and sometimes this wastes unnecessary time and chances are that some of the important subjects and topics might be lost. Reading will only make you aware of unknown things. What you need is just a comparison between your curriculum of college and the syllabus of GATE or as per the pattern of GATE in the year you are going to appear for GATE. Concentrate more on the common topics. Try to learn the basics.

Have a habit of noting or jotting down important formulas that can be very important from exams as well as basic concept points of view. Now how to decide particular formula is important or not? Just look for the Master of Technology syllabus of IITs and IISc. You will notice that in order to learn those subjects, they require certain basic concepts before you start your research. So, based on the specialization of masters, you can judge the topic's importance. Just prepare a notebook for each subject and you will be able to revise the complete readings in a few hours by use of the notebook. Do not read the stuff but understand it.

Read only things that you do not know. Skip those topics you already know. This will save you time in preparation for that subject.

Discuss the topics with your seniors, teacher, or in a group of a friend so, that if you are wrong in concept-wise for that topic, some of them will correct you. Have a discussion of everything that you read. The discussion will lead to the discovery of understanding. Concepts will be cleared once you start discussing. More minds work better than a single mind. Follow the tips related to GATE

Read carefully all the instructions given in the GATE paper. Some of the instructions will be much important than you think of it. i.e. Negative marking system. If it is a negative marking, you will lose 25% marks for each wrong answer. Always be aware of new instructions on the question paper. It is your responsibility to read and act as per the instructions.

Try to attempt those questions, for those you are almost 110% sure, not 90%. A wrong answer may decrease your overall performance in terms of your GATE score. GATE asks those questions that make you unclear about two or more similar answers to the same questions If you are not clear on basics, you will not get the right answer from the choices.

Attempt first all the questions that are very easy and when you are sure of their correctness. Leave some calculating questions and come back to those once you finish the easy questions. Always double sure about everything you attempt.

Use common sense for each question. They are looking for common sense/basics only!!

GATE Study Material for Theory of Machines

GATE 2023: GATE Study material for Fluid Mechanics subject

2022-11-09T15:57:00.000+05:30

This post is all about important study materials/notes which will be helpful while preparing for the GATE 2015, Mechanical Engineering. These also help to other branches which use Fluid mechanics as one of the subjects in GATE 2023 syllabus like Civil, Aeronautical etc. Also, read the GATE preparation tips.

This post contains scan copies of all the important basic concepts in fluid mechanics which will be helpful for the fast and one-day preparation of GATE. Click on the link to get the material downloaded.

This material contains very precise but important notes, equations, and definitions related to Fluid Mechanics.

All these files are as per page number of the complete material. This study material is prepared by me while I used to prepare for the GATE in the year 2006-2007. This study material includes the following topics page wise.

Basic properties of Fluid
Variation of Viscosity with respect to temperature
Classification of Fluid
Surface tension and different cases
Capillary effects in fluids
Pascal's law and classification of pressure
Pressure Measurement devices
Hydrostatic forces on fluids
Hydrostatic paradox
Time period of oscillation of floating body
Buoyancy and meta-centric height
Metacentre
Stability of floating body
Kinematics of Flow - Introduction
Fluid flow classification
Continuity equation in cylindrical coordinates
Fluid velocity and acceleration
Introduction to velocity potential function and stream function
Definition of Steam lines, streaklines and path lines
Relationship between velocity potential function and stream function
Bernoulli's principle and Dynamics of fluid flow
Bernoulli's equation for real fluid
Force exerted by flow on pipe bend
Orifice and mouthpiece
Velocity of approach
Viscous and laminar flow
Flow through pipes and plates
Introduction to turbulent flow
Chezy and Darcy's formula for fluid flow
Flow through parallel and series pipes
Power transmission through pipes.

Download the complete Fluid Mechanics Study Material

Also download the study material

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GATE 2019 Reference books and study material for Engineering Mechanics and Strength of Materials

2014-10-22T18:10:00.001+05:30

GATE 2019 Syllabus for Engineering Mechanics

Free body diagrams and equilibrium
Trusses and frames
Virtual work;
Kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations, impact.

Reference Material for Engineering Mechanics

Books:

1. A Textbook of Engineering Mechanics by R.K. Bansal ( I have used this book for GATE 2006)

2. Engineering Mechanics by S.timoshenko D.H Young (Very fundamental book)

3. Engineering Mechanics and Mechanics of Structures by M. Kothandaraman

Web:

NPTEL Video Lecture on Engineering Mechanics by Prof. U.S. Dixit and Dr. G. Saravana Kumar (IIT-Guwahati)

NPTEL Web Lecture on Engineering Mechanics by Prof. U.S. Dixit

GATE 2016 Syllabus for Strength of Materials

Stress and strain,
Stress-strain relationship and elastic constants
Mohr’s circle for plane stress and plane strain
Thin cylinders
Shear force and bending moment diagrams
Bending and shear stresses
Deflection of beams
Torsion of circular shafts
Euler’s theory of columns
Strain energy methods
Thermal stresses

Free Study Material on EM and SM

Reference Material for Strength of Materials

Books:

1. A Textbook of Strength of Materials by R.K. Bansal ( I have used this book for GATE 2006)

2. Strength of Materials by S.timoshenko D.H Young (Very fundamental book)

3. Strength of Materials by S S Rattan

Web:

NPTEL Strength of Material Web Lecture by Prof. Satish Sharma

NPTEL Strength of Material Web Lecture by Prof. S. P. Harsha

NPTEL Strenth of Material Web Lecture by Prof. M. S. Sivakumar

Question paper pattern for GATE 2018 Mechanical Engineering

2014-09-21T10:48:00.000+05:30

GATE 2018 will have the following pattern of Question Paper for Mechanical Engineering section. This pattern is also applicable to all other engineering branches.

Maximum marks: Question paper is of 100 marks (maximum)

Distribution of marks:

15% - Engineering Mathematics

15% - General Aptitude

70% - Subject

Types of questions to be asked:

1. Multiple Choice Questions: Carrying 1-2 marks per question

2. Numerical Answer type Questions: One has to enter the answer by virtual keypad, as the exam will be conducted online mode only, No choices will be given for this section.

All questions can be of following nature or type/design to judge the student's aptitude in engineering.

1. Recall: Based on certain laws, formulae, principles etc.

2. Comprehension: Checks the basics of engineering

3. Applications: Checks application point of view

4. Analysis and Synthesis: Excepts to analyze and synthesize the data, diagram or images given

Marking Scheme:

1/3 negative marking for each wrong answer of 1 mark question

2/3 negative marking for each wrong answer of 2 marks question

No negative marking for numerical answer type question

GATE 2019: free Study material and e-books for Fluid Mechanics and Thermal science

2013-08-10T15:19:00.002+05:30

GATE Mechanical engineering syllabus has main four sections

1. Engineering Mathematics
2. Fluid Mechanics and Thermal Science
3. Applied Mechanics and Design
4. Manufacturing and Industrial Design

In this post, you will get e-books related to following subjects. After downloading the books, You can first look at the syllabus of engineering mathematics given below. Search for the topic given in the syllabus and print the page. Simply by doing this method, you can prepare your custom made GATE study material for Engineering Mathematics portion. Find more GATE exam preparation tips here.

2. Look for the old question papers and solve it. You will get confidence by solving old question papers.

Find GATE preparation tips

Full syllabus of GATE Mechanical - Fluid Mechanics and Thermal Science

Fluid Mechanics:
Fluid properties; fluid statics, manometry, buoyancy; control-volume analysis of mass, momentum, and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; viscous flow of incompressible fluids; boundary layer; elementary turbulent flow; flow through pipes, head losses in pipes, bends etc.

E-Book Fluid Mechanics by Kundu

Heat-Transfer:
Modes of heat transfer; one dimensional heat conduction, resistance concept, electrical analogy, unsteady heat conduction, fins; dimensionless parameters in free and forced convective heat transfer, various correlations for heat transfer in flow over flat plates and through pipes; thermal boundary layer; effect of turbulence; radiative heat transfer, black and grey surfaces, shape factors, network analysis; heat exchanger performance, LMTD and NTU methods.

Ebook: Fundamentals of Heat and Mass Transfer by Incropera and Dewitt

Thermodynamics:
Zeroth, First and Second laws of thermodynamics; thermodynamic system and processes; Carnot cycle.irreversibility and availability; behavior of ideal and real gases, properties of pure substances, calculation of work and heat in ideal processes; analysis of thermodynamic cycles related to energy conversion.

Ebook: Thermodynamics an engineering approach by Cengels and Boles

Applications:
Power Engineering: Steam Tables, Rankine, Brayton cycles with regeneration and reheat. I.C. Engines: air-standard Otto, Diesel cycles. Refrigeration and air-conditioning: Vapour refrigeration cycle, heat pumps, gas refrigeration, Reverse Brayton cycle; moist air: psychrometric chart, basic psychrometric processes. Turbomachinery: Pelton-wheel, Francis and Kaplan turbines — impulse and reaction principles, velocity diagrams.

Find all content from This Mechanical Handbooks-1 and Mechanical Handbook-2

GATE 2019: free Study material and e-books for engineering mathematics

2013-08-09T14:30:00.000+05:30

GATE Mechanical engineering syllabus has main four sections

1. Engineering Mathematics

2. Fluid Mechanics and Thermal Science

3. Applied Mechanics and Design

4. Manufacturing and Industrial Design

Find the relevant topics from the e-book of engineering mathematics by John Bird

What you can do with an e-book?

1. You can first look at the syllabus of engineering mathematics given below. Search for the topic given in the syllabus and print the page. Simply by doing this method, you can prepare your custom made GATE study material for Engineering Mathematics portion. Find more GATE exam preparation tips here.

2. Look for the old question papers and solve it. You will get confidence by solving old question papers.

Syllabus of Engineering Mathematics for GATE 2015 - Mechanical Engineering

Linear Algebra: Matrix algebra, Systems of linear equations, Eigen values and eigen vectors.

Calculus: Functions of single variable, Limit, continuity and differentiability, Mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.

Differential equations: First order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one-dimensional heat and wave equations and Laplace equation.

Complex variables: Analytic functions, Cauchy’s integral theorem, Taylor, and Laurent series.

Probability and Statistics: Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson, Normal and Binomial distributions.

Numerical Methods: Numerical solutions of linear and non-linear algebraic equations Integration by trapezoidal and Simpson’s rule, single and multi-step methods for differential equations.

Find other GATE Mechanical Study Materials

New GATE examination pattern in GATE 2014

2013-03-25T19:55:00.000+05:30

Today out county, India has got more than 3000 engineering college (3,393 engineering colleges with 14.84 total seats). Now just imagine the situation what will be the output during each year from each college and
the competition every student faces each year to get job and to take admission in the master degree course. The only possible way to come out from this competition is to emerge as one of the top scorer in competitive examination like GATE. The ultimate aim for GATE examination is to highlight the better students who are suitable for master education like M. E and M. Tech in IITs and NITs. But today scenario is different. Read why it is.

Due to high level reputation of GATE, Since last 3-4 years, most of the PSU (Public Sector Units) companies also prefer candidate with suitable/competitive GATE score in particular field. Here is the list of few PSUs which ask for GATE score for job interview. (In early years PSUs used to take their own written tests)

Hindustan Petroleum Corporation Limited (HPCL)
Bharat Petroleum Corporation Limited (BPCL)
NTPC Limited ( National Thermal Power Corporation)
Power Grid, the central transmission utility (PGCIL)
Gas Authorityof India Limited (GAIL)
Indian Oil Corporation Limited (IOCL)
Heavy Engineering Corporation Ltd (HECL)

Each year, most of the final year students enroll the GATE examination and try to get GATE good score to get job in PSUs and to make the resume heavier by GATE score. Since last three years, the total number of GATE candidates are increasing each year due to PSUs effect. In 2011, it was around 5 lacks, in 2012 the number was around 7 lacks and in this year it is above 12.5 lacks. You can imagine the load that IIT (Organizing Institute) has to handle for each exam.

So, to get rid of the high number of candidates appearing for GATE every year, the experts from IITs (Organizing institute of GATE) wants the next GATE's examination patter to be entirely changed from the current one. The probable changes in the next GATE exam is inclusion of prelims and mains exam. The committee for this change is already been setup which consists of nine members from IITs and IISc. In the prelim exam, only objective of the exam is to reduce the number of GATE candidates to few by high cut-off. So, at the end of prelim results, main exam will get less students for evaluation. Thus the sole purpose of GATE will be served by this new examination pattern. The exam is likely to held for more than one days and will have complete new makeover with new structure. Committee has started work in this direction.

You need to start thinking seriously if you are going to appear for GATE 2014 because this will be the tough test. One need to have serious preparation for GATE. Find GATE tips from your seniors and teachers who already experienced this exam.

Find the free GATE study material

GATE 2019 Syllsbus for Mechanical Engineering Exam

2013-03-13T17:01:00.000+05:30

ENGINEERING MATHEMATICS

Linear Algebra:

Matrix algebra, Systems of linear equations, Eigen values and eigen vectors.

Calculus: Functions of single variable, Limit, continuity and differentiability, Mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.

Differential equations: First order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one dimensional heat and wave equations and Laplace equation.

Complex variables: Analytic functions, Cauchy’s integral theorem, Taylor and Laurent series. Probability and Statistics: Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson, Normal and Binomial distributions.

Numerical Methods: Numerical solutions of linear and non-linear algebraic equations Integration by trapezoidal and Simpson’s rule, single and multi-step methods for differential equations.

Most important topics for GATE 2014 - Mechanical Engineering

APPLIED MECHANICS AND DESIGN

Engineering Mechanics: Free body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations; impact.

Strength of Materials: Stress and strain, stress-strain relationship and elastic constants, Mohr’s circle for plane stress and plane strain, thin cylinders; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular shafts; Euler’s theory of columns; strain energy methods; thermal stresses.

Theory of Machines: Displacement, velocity and acceleration analysis of plane mechanisms; dynamic analysis of slider-crank mechanism; gear trains; flywheels.

Vibrations: Free and forced vibration of single degree of freedom systems; effect of damping; vibration isolation; resonance, critical speeds of shafts.

Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted and welded joints, shafts, spur gears, rolling and sliding contact bearings, brakes and clutches.

FLUID MECHANICS AND THERMAL SCIENCES

Fluid Mechanics: Fluid properties; fluid statics, manometry, buoyancy; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; viscous flow of incompressible fluids; boundary layer; elementary turbulent flow; flow through pipes, head losses in pipes, bends etc.

Heat-Transfer: Modes of heat transfer; one dimensional heat conduction, resistance concept, electrical analogy, unsteady heat conduction, fins; dimensionless parameters in free and forced convective heat transfer, various correlations for heat transfer in flow over flat plates and through pipes; thermal boundary layer; effect of turbulence; radiative heat transfer, black and grey surfaces, shape factors, network analysis; heat exchanger performance, LMTD and NTU methods.

Thermodynamics: Zeroth, First and Second laws of thermodynamics; thermodynamic system and processes; Carnot cycle. irreversibility and availability; behaviour of ideal and real gases, properties of pure substances, calculation of work and heat in ideal processes; analysis of thermodynamic cycles related to energy conversion.

Applications: Power Engineering: Steam Tables, Rankine, Brayton cycles with regeneration and reheat. I.C. Engines: air-standard Otto, Diesel cycles. Refrigeration and air-conditioning: Vapour refrigeration cycle, heat pumps, gas refrigeration, Reverse Brayton cycle; moist air: psychrometric chart, basic psychrometric processes. Turbomachinery: Pelton-wheel, Francis and Kaplan turbines — impulse and reaction principles, velocity diagrams.

MANUFACTURING AND INDUSTRIAL ENGINEERING

Engineering Materials: Structure and properties of engineering materials, heat treatment, stressstrain diagrams for engineering materials.

Metal Casting: Design of patterns, moulds and cores; solidification and cooling; riser and gating design, design considerations.

Forming: Plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes; principles of powder metallurgy.

Joining: Physics of welding, bra
zing and soldering; adhesive bonding; design considerations in welding.

Machining and Machine Tool Operations: Mechanics of machining, single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, principles of design of jigs and fixtures

Metrology and Inspection: Limits, fits and tolerances; linear and angular measurements; comparators; gauge design; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly.

Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools.

Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning.

Inventory Control: Deterministic and probabilistic models; safety stock inventory control systems.

Operations Research: Linear programming, simplex and duplex method, transportation, assignment, network flow models, simple queuing models, PERT and CPM.