GATE Mechanical Engineering Section Wise Syllabus

The Graduate Aptitude Test in Engineering (GATE) is a national level entrance exam for postgraduate engineering students. The Exam is usually conducted by The Indian Institute of Science and all the Indian Institute of Technologies across the Nation.

The examination is conducted every year during the first week of February. This year it is been conducted by the Indian Institute of Technology Bombay. Two new subjects have been added by the exam committee board this year i. e. Environment Studies and Engineering and Social Science and Humanities.

GATE Mechanical Engineering 2021

Given below is the list of topics and subtopics that are expected for the GATE ME exam 2021. The aspirants shall make sure that they have covered each section one by one.

  • General Aptitude
  • Engineering Mathematics
  • Applied Mechanics and Design
  • Fluid Mechanics and Thermal Science
  • Manufacturing and Industrial Engineering

Let us go walk through each section GATE Mechanical Engineering Syllabus one by one.

Common Syllabus for GATE Examination 2021

1. General Aptitude Section

Before we start going through the individual syllabus, let’s initially go through the non-technical topics which are common to all the branches.

General Aptitude (GA) holds 15% of the total marks of the paper. The question is aimed to test the candidates on their verbal ability and numerical ability. The general aptitude has the following :

Verbal Aptitude Section

Basic English Grammar: articles, prepositions, tenses, adjectives, verb-noun agreement, conjunctions, and other parts of speech.

Basic vocabulary: Idioms, words, phrases in context reading, and comprehension narrative sequencing.

Quantitative Aptitude Section

Data interpretation: data graphs (bar graphs, pie charts, and other graphs representing data), tables, 2- and 3-dimensional plots, maps.

Numerical computation and estimation: ratios, powers, exponents and logarithms, percentages, permutations and combinations, and series Mensuration and geometry Elementary statistics and probability.  

Analytical Aptitude Section

Logic: Induction and Deduction

Numerical relations and reasoning


Spatial Aptitude Section

Transformation of shapes: Rotation, scaling, translation, mirroring, grouping, paper folding, cutting, and pattern in 2 dimensions and 3 dimension

2. Engineering Mathematics Section

This section is also common in all branches of GATE but varies in subject and topics based on the streams chosen by the candidate. In GATE 2021 examination 12% of the questions are expected to come for the exam.

Linear Algebra

Matrix algebra

Systems of linear equations

Eigenvalues and Eigen vectors.


Functions of a 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 integral

Stokes, Gauss, and Green’s theorems.

Differential Equation

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

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

Simpson’s rule, single and multi-step methods for differential equations.

3. Applied Mechanics and Designs Section

Applied Mechanics and Design is the core of Mechanical engineering. In GATE ME 2020 5% of the questions came from Engineering Mechanics, 3% from Mechanics of Material, 8% from Theory of Machines, 7% from Machine Design. In total 23% weightage of the paper came from this section.

Engineering Mechanics

Free-body diagrams and equilibrium

trusses and frames

Virtual work

kinematics and dynamics of particles and of rigid bodies in plane motion

impulse and momentum (linear and angular) and energy formulation, collisions.

Mechanics of Materials

Stress and strain, elastic constants, Poisson’s ratio

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

energy methods

thermal stresses

Strain gauges and rosettes

testing of materials with the universal testing machine

testing of hardness and impact strength.

Theory of Machines

Displacement, velocity, and acceleration analysis of plane mechanisms

dynamic analysis of linkages

cams; gears and gear trains

flywheels and governors

balancing of reciprocating and rotating masses



Free and forced vibration of single degree of freedom systems

effect of damping

vibration isolation

resonance, critical speeds of shafts.

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, gears, rolling and sliding contact bearings, brakes, and clutches, springs.

4. Fluid Mechanics and Thermal Sciences Section

In GATE 2020 8% of the questions came from fluid mechanics, 4% came from Heat Transfer, 13% from basic and applied thermodynamics. Thus a total of 25% came from this section.

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

the viscous flow of incompressible fluids

boundary layer

elementary turbulent flow

flow through pipes, head losses in pipes bend, etc.


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.


Zeroth, First and Second laws of thermodynamics

thermodynamic system and processes

Carnot cycle irreversibility and availability

the 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.


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


Pelton-wheel, Francis, and Kaplan turbines — impulse and reaction principles, velocity diagrams.

5. Materials, Manufacturing and Industrial Engineering Section

In the GATE 2020 Examination, about 16% of the questions in the examination were from Manufacturing and Material Science and 7% were from Industrial Engineering.

Engineering Materials

Structure and properties of engineering materials, phase diagrams, heat treatment, stress-strain diagrams for engineering materials.

Casting, Forming, and Joining Processes

Different types of castings, design of patterns, molds, and cores

solidification and cooling

riser and gating design

Plastic deformation and yield criteria

fundamentals of hot and cold working

load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes

principles of powder metallurgy. Principles of welding, brazing, soldering, and adhesive bonding.

Machining and Machine Tool Operations

Mechanics of machining

basic machine tools

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, design of jigs, and fixtures.

Metrology and Inspection

Limits, fits, and tolerances

linear and angular measurements


gauge design


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 models

safety stock inventory control systems.

Operations Research

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

Click Here to download the PDF of the syllabus

Expected Topic Wise Weightage for GATE ME 2021


Expected Weightage

Engineering Mechanics


Strength of materials


Heat Transfer


Machine Design


Fluid Mechanics


Theory of Mechanics




Refrigeration & Air Conditioning


General Aptitude


Industrial Engineering


Engineering Maths


Manufacturing Engineering


Other GATE Related Blogs for Reference

GATE Exam Paper Analysis GATE ME Exam Pattern
GATE ME Books GATE ME Previous Year Papers

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