These are the topics which are very important topics for gate 2021

**Grade-A Subjects ………….more than 10 revisions are required**

Production (2013 By IIT Bombay-18%)

Mathematics (2013 By IIT Bombay-15%)

TOM (2013 By IIT Bombay-9%)

Heat Transfer (2013 By IIT Bombay-10%)

Fluid Mechanics & Machines (2013 By IIT Bombay-6%)

SOM (2013 By IIT Bombay-5%)

Industrial Engineering (2013 By IIT Bombay-4%)

**Grade-B Subjects ………….more than 5 revisions are required**

Thermodynamics (2013 By IIT Bombay-3%)

Power plant (2013 By IIT Bombay-6%)

Design (2013 By IIT Bombay-6%)

RAC (2013 By IIT Bombay-1%)

**Grade-C Subjects ………….less than 5 revisions are required**

Engineering Mechanics (2013 By IIT Bombay-2%)

**Grade-D Subjects …………1 or 2 revisions are sufficient**

Engineering Materials (2013 By IIT Bombay-0%)

IC Engine (2013 By IIT Bombay-0%)

## Detailed Topics

**Production**

a) Theory of metal cutting, forces, tool life

b) NC/CNC Machine, BLU calculations, upto M & G code, transformations-rotation,

translations.

c) Welding: V-I Characteristics calculations, Resistance welding calculations, Melting

efficiency, Special welding theory

d) Casting: allowances, Riser Design, Sprue Design, Pouring time calculations, Special

Castings, Casting Defects.

e) Limit, tolerance, fit

f) ECM MRR, feed calculations, EDM theory, comparison of all NTMM

g) Rolling calculations

h) Wire drawing and Extrusion Calculations

i) Sheet metal operations, clearance, force, power, shear calculations

j) Lathe, drilling, milling, shaping cutting time calculations, all numericals

k) Grinding and finishing

l) Jig & Fixture, 3-2-1 principle**Mathematics**

a) Probability and Statistics

b) Eigen Values and Eigen Vectors

c) Differential Equations

d) Transform Theory

e) Numerical Methods

f) Calculus, Gradient, Multiple Integrals

g) Complex Variables

h) Matrix Algebra

i) Fourier Series

j) Partial Derivatives**TOM**

a) Mechanism (VIMP)

b) Linear Vibration Analysis of Mechanical Systems (VIMP)

c) Gear train (VIMP)

d) Flywheel (Coefficient of Fluctuation of speed, Coefficient of Fluctuation of energy), mass

calculation,

e) Critical Speed of Shafts

f) Gyroscope

g) cam**Heat Transfer**

a) Conduction

b) Critical Thickness of Insulation

c) Unsteady Conduction (Lumped Parameter Analysis)

d) Radiation (The Stefan-Boltzmann Law, Shape Factor Algebra, Heat Exchange between Non-

black Bodies)

e) Heat Exchangers (LMTD, NTU)

**Fluid Mechanics & Fluid Machines**

a) Properties of fluid

b) Pressure measurement, manometers

c) Fluid kinematics (VIMP)

d) Bernoulli’s Equation ( Fluid Dynamics)

e) Venturimeter

f) Flow ( Laminar and Turbulent)

g) Boundary Layer, Thermal Boundary Layer

h) Compressible Flow

i) Hydraulic Turbine

j) Centrifugal Pump**SOM**

a) Principal Stress and Principal Strain, Mohr Circle(VIMP)

b) Stress and Strain (VIMP)

c) Bending Moment and Shear Force Diagram (VIMP)

d) Deflection of Beam

e) Torsion

f) Theories of Column (Euler method, end conditions)

g) Strain Energy Method (Castigliano’s theory)

h) Theories of failure

i) Thin cylinder

j) Riveted and Welded Joint

k) Spring

**Industrial Engineering**

a) EOQ Models (VIMP)

b) PERT & CPM (VIMP)

c) Queuing Model (VIMP)

d) Forecasting (VIMP)

e) LPP

f) Assignment problems

g) Work Study & Work Measurement (standard time calculations, theriblings symbol)

h) Break even Analysis

i) The Scheduling Problem and Johnson’s Rule

j) Assembly line balancing

8. **Thermodynamics**

a) Basic Concepts

b) Application of First law

c) Entropy, Availability

d) Pure Substance (VIMP)

e) Gases and Gas mixture

**Power plant**

a) Steam Cycle (VIMP)

b) Gas Cycle

c) Compressor**Design**

a) Fluctuating Load Consideration for Design

b) Rolling Contact Bearings, Load-life Relationship

c) Sliding contact bearing, Modes of Lubrication, Sommerfeld Number

d) Clutch , Brake

e) Riveted and bolted joints**RAC**

a) Heat engine, heat pump, refrigerator (VIMP)

b) Psychrometry (VIMP)

c) Vapour Compression Systems**Engineering Mechanics**

a) Equilibrium

b) Truss

c) Friction**Engineering materials**

a) Crystal structure & crystal defects

b) Iron-carbon Equilibrium diagram, TTT diagram, Lever rule

c) Heat treatment**IC Engine**

a) Gas Power Cycles (All) (VIMP)

b) IC Engine Performances

c) Octane number, cetane number

## General Guideline

Please follow the step by step procedure given below for preparing GATE where only

objective type questions are asked.

I found that in all competitive examinations similar type of questions are asked. They are

similar but not the same. The questions are not repeated but the theory (Funda) which is

needed to solve the question remains same. So you don’t need to remember the questions and

answers but you must remember the funda behind it.

GATE papers are set by Professors of IITs and they check student’s fundamentals of the

subject. So we must be prepared with fundamentals. That’s why funda is repeated.

You know that in the engineering books are not made for objective type questions. The

theory involves rigorous derivations, enormous calculations etc and our University

examinations are also conventional type.

We have to prepare for Objective Questions.

For regular eye on your progress

Paste the topic list in front of study table, tick mark the topics completed by you (class note +

all questions from question set) on daily basis.

One tick when topic is completed once, then second tick after the second revision, and so on.

Topic list should contain as many tick marks as many times revision for a particular topic is

completed.

Once one subject gets completed it has to be revised frequently (once in a month or so), so

that formulae can be remembered on the long run.

**For Students’ who are attending coaching**

Attend all classes.

Meticulously read class notes

From the question set solve all previous year asked questions which are given in topic wise

sequence.

It is recommended to solve my question set on your own and then cross check with my

explanations.

Mathematics (Class note + My Question set)

Manufacturing Science (Class note + My Question set GATE,IES,IAS)

SOM (Class note + My Question set GATE,IES,IAS)

TOM (Class note + Question set GATE,IES,IAS)

Industrial Engineering (Class note + Question set GATE,IES,IAS)

Engineering Mechanics ( Book: D P Sharma or Bansal or Khurmi)

Thermodynamics {Class note + P K Nag Unsolved all (My solutions available)}

Fluid Mechanics & Machines (Class note + Only 20 Years GATE Questions)

Heat Transfer (Class note + Only 20 Years GATE Questions)

Design (Class note + Only 20 Years GATE Questions)

RAC (Class note + Only 20 Years GATE Questions)

Power plant (Class note + Only 20 Years GATE Questions)

IC Engine (Class note + Only 20 Years GATE Questions)

Engineering Materials (Class note + Only 20 Years GATE Questions)

**For self preparing students**

Meticulously read book only of the topics mentioned in topic list.

Practice all solved examples from the books of respective subject as listed below of ONLY the

topics mentioned in the topic list

It is recommended to solve my question set on your own and cross check with my explanations.

Mathematics (Grewal or Dash + My Question set)

Manufacturing Science { Book P.C Sharma (Vol 1& 2) + My Question set GATE,IES,IAS }

SOM (Book Sadhu Singh or B.C Punmia or only My Book + My Question set GATE,IES,IAS)

TOM ( Book S S Rattan + My Question set GATE,IES,IAS)

Industrial Engineering (Ravi Shankar or Kanti Swarup or my book + My Question set

GATE,IES,IAS)

Engineering Mechanics ( Book: D P Sharma or Bansal )

Thermodynamics {Book Rajput + P K Nag Unsolved all (My solutions available)}

Fluid Mechanics & Machines (Book Bansal or Rajput or my book + Only 20 Years GATE

Questions, My set)

Heat Transfer (Book Rajput or Domkundwar + Only 20 Years GATE Questions, My set)

Design (Book Bhandari or Khurmi + Only 20 Years GATE Questions, My set)

RAC (Book Rajput or CP Arora+ Only 20 Years GATE Questions, My set)

Power plant (Book PK Nag + Only 20 Years GATE Questions, My set)

IC Engine (Book V Ganeshan + Only 20 Years GATE Questions, My set)

Engineering Materials (NPTEL IISc material from net or Callister + Only 20 Years GATE

Questions, My set)