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.
Table of Contents
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
Analogy
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. |
Calculus |
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 gyroscope. |
Vibrations |
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. |
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 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. |
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. |
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 Comparators gauge design Interferometry form and finish measurement alignment and testing methods tolerance analysis in manufacturing |
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
Topic |
Expected Weightage |
Engineering Mechanics |
2.5 |
Strength of materials |
7.75 |
Heat Transfer |
6 |
Machine Design |
3.75 |
Fluid Mechanics |
7.5 |
Theory of Mechanics |
9 |
Thermodynamics |
12.75 |
Refrigeration & Air Conditioning |
1.25 |
General Aptitude |
15 |
Industrial Engineering |
8 |
Engineering Maths |
12.25 |
Manufacturing Engineering |
14.25 |
Other GATE Related Blogs for Reference
GATE Exam Paper Analysis | GATE ME Exam Pattern |
GATE ME Books | GATE ME Previous Year Papers |