ISRO Scientist/Engineer (Mechanical)-25 Days Mock Test Challenge for Winners
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Imagine working for ISRO, the prestigious space agency of India. Imagine being part of the amazing projects that ISRO does, like launching rockets, satellites, and missions to the moon and beyond. Imagine making your nation proud. Sounds awesome, right? Well, there’s a way to make it happen. But there’s a catch. You have a full-time job and you can’t quit. You don’t have the time to study for months. You need a quick and effective way to ace the exam in just 25 days.

Here’s a perfect 25-day Mock Test Challenge – the shortcut to cover the ISRO exam syllabus in record time.

Take a FREE ISRO ISRO Scientist/Engineer Exam 2023 Mock Test now!

ISRO Scientist/Engineer Exam Pattern 2023

The ISRO Scientist/Engineer exam has two stages: a written test of 95 objective questions (80 specific and 15 general) and an interview of 100 marks. You need 60% marks in the written test to qualify for the interview. The final selection is based on the combined marks of both stages. The exam checks your knowledge, skills, and aptitude in space science and engineering.

Phases PaperQuestionsTime 
IWritten Test Part A: Specific Discipline80Time Duration: 120 minutes (2 Hours)
IIWritten Test Part B: General Aptitude15

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ISRO Scientist/Engineer (Mechanical)-25 Days Mock Test Challenge for Winners

Here is a 25 Days Study Plan for ISRO Scientist/Engineer (Mechanical) 2023. You can adjust it according to your preferences and availability. The table shows the topics to cover each day and the number of hours to spend on them.

DayTopics
1Start by taking a FREE ISRO Scientist/Engineer (Mechanical) 
Mock Test


Go through PYQs.

Fluid Mechanics: Fluid properties; fluid statics, manometry, buoyancy, forces on submerged bodies, stability of floating bodies; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum.
Turbomachinery: Impulse and reaction principles, velocity diagrams, Pelton-wheel, Francis and Kaplan turbines.
2Thermodynamics: Thermodynamic systems and processes; properties of pure substances, behaviour of ideal and real gases; zeroth and first laws of thermodynamics, calculation of work and heat in various processes.
3Thermodynamics Applications:
Power Plant Engineering: Air and gas compressors; vapour and gas power cycles, concepts of regeneration and reheat, Boilers, Steam Nozzel, Steam Turbine, Steam Powerplant.
I.C. Engines: Air-standard Otto, Diesel and dual cycles, Engine Cooling and Lubrication, IC Engine Performance and Testing.
Refrigeration and air-conditioning: Vapour and gas refrigeration and heat pump cycles; properties of moist air, psychrometric chart, basic psychrometric processes.
4Take ISRO Scientist/Engineer (Mechanical) 
Mock Test 2 +
 Complete Analysis & Feedback


Vibrations: Free and forced vibration of single degree of freedom systems, effect of damping; vibration isolation; resonance; critical speeds of shafts.
5Design: 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.
6Engineering Mechanics: Free-body diagrams and equilibrium; friction and its applications; trusses and frames; virtual work; kinematics and dynamics of rigid bodies in plane motion.
7Strength 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.
8Take ISRO Scientist/Engineer (Mechanical) 
Mock Test 3 +
 Complete Analysis & Feedback
9Theory 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.
10Engineering 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, moulds and cores; solidification and cooling; riser and gating design. Plastic deformation and yield criteria; fundamentals of hot and cold working processes.
11Take ISRO Scientist/Engineer (Mechanical) 
Mock Test 4 +
 Complete Analysis & Feedback

Machining Processes: Basic machine tools (lathe, drilling machine etc.), machining operations (turning, facing etc.), geometry of single point cutting tools (ASA system), cutting fluids/lubricants etc., tool life & wear mechanisms (Taylor’s equation), economics of machining (cutting speed/feed/depth etc.). Metrology & Inspection: Limits/fits/tolerances (IS codes), linear/angular measurements (vernier/micrometer etc.), comparators (mechanical/pneumatic/electrical etc.), surface finish measurement (profilometer etc.), screw thread measurement (pitch diameter/effective diameter etc.). Computer Integrated Manufacturing: Basic concepts of CAD/CAM/CIM/CAE/FMS/CNC/Robotics etc., additive manufacturing techniques (3D printing etc.).
12Revision/Test Series for Week 1 & Week 2 Topics
13Industrial Engineering: Production Planning & Control (PPC): Forecasting models (moving average/exponential smoothing etc.), aggregate production planning/master production schedule/material requirement planning/inventory control/ABC analysis/EOQ models/P & Q systems etc., JIT/lean manufacturing/Kanban system etc., project management techniques (PERT/CPM/crashing/resource levelling etc.). Operations Research (OR): Linear programming problem (LPP)/graphical/simplex/duality/sensitivity analysis/transportation/assignment problems etc., integer programming problem (branch & bound/cutting plane methods etc.), game theory (two person zero sum games etc.), sequencing models (Johnson’s algorithm etc.), queuing models (M/M/1/M/M/C/M/G/1 etc.), simulation models. Engineering Economy & Costing: Elementary cost accounting/cost sheet/marginal costing/break even analysis etc., techniques for evaluation of capital investments (payback period/ARR/NPV/IRR etc.). Work System Design: Taylor’s scientific management, Gilbreths’s contributions, productivity concepts & measurements, method study, micro-motion study, principles of motion economy, work measurement, time study, work sampling, ergonomics, job evaluation & merit rating.
14Engineering Mathematics: Linear Algebra: Matrix algebra, systems of linear equations, eigenvalues and eigenvectors. Calculus: Functions of single variable, limit, continuity and differentiability, mean value theorems, indeterminate forms; evaluation of definite and improper integrals; double and triple integrals; partial derivatives, total derivative, Taylor series (in one and two variables), maxima and minima, Fourier series; gradient, divergence and curl, vector identities, directional derivatives, line, surface and volume integrals, applications of Gauss, Stokes and Green’s theorems. Differential equations: First order equations (linear and nonlinear); higher order linear differential equations with constant coefficients; Euler-Cauchy equation; initial and boundary value problems; Laplace transforms; solutions of heat, wave and Laplace’s equations. Complex variables: Analytic functions; Cauchy-Riemann equations; Cauchy’s integral theorem and integral formula; Taylor and Laurent series. Probability and Statistics: Definitions of probability and sampling theorems; conditional probability; mean, median, mode and standard deviation; random variables; binomial, Poisson and normal distributions. Numerical Methods: Numerical solutions of linear and non-linear algebraic equations; integration by trapezoidal and Simpson’s rules; single and multi-step methods for differential equations.
15General English: Reading Comprehension Grammar Vocabulary Verbal Ability Synonyms Antonyms Error Spotting Jumbled Sentences Fill in the Blanks
16Reasoning Ability: Verbal Reasoning Non-Verbal Reasoning Logical Reasoning Data Interpretation Puzzles Seating Arrangement Coding-Decoding Blood Relations Syllogism Clocks & Calendars Direction & Distance Ordering & Ranking Analogy Series Statement & Assumption Statement & Conclusion Statement & Course of Action Statement & Argument Cause & Effect Inference Decision Making Data Sufficiency Alphabet Test Number System HCF & LCM Decimal Fraction Simplification Ratio & Proportion Unitary Method Percentage Time & Distance Time & Work Profit & Loss Average Simple Interest Compound Interest Algebra Trigonometry Geometry Mensuration
17General Awareness: Current Affairs Indian History Indian Polity Indian Economy Indian Geography World Geography Indian Constitution Science & Technology Environment Books & Authors Awards & Honours Sports Art & Culture Important Days National & International Organizations
18Revision/Test Series for Week 3 Topics
19Revise Engineering Mathematics
20Revise Important Topics
21Revise Engineering Materials
22Revise Machining Processes
23Revise General English
24Revision/Test Series for Week 4 Topics
25Revise Reasoning Ability

Note: If you want to ace the test, pay attention to the topics covered in Days 1, 2, and 3 in the table above. They make up 70% of the questions asked in the exam.

Take a FREE ISRO ISRO Scientist/Engineer Exam 2023 Mock Test now!

Action Speaks Louder Than Words

This is your opportunity to turn your dream into your reality. This is your opportunity to join ISRO and make history. Don’t let this opportunity pass you by. Take action now and join the Mock Test Challenge today. Claim Your Free Mock Test & Ace ISRO Exam 2023 in Just 25 Days!

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By Asad Yar Khan

I write and oversee the creation of informative educational blogs centering around study strategies, exam techniques, and more, to guide aspirants in clearing SSC, banking, engineering, and other competitive exams. I ensure a range of subjects are covered with precision and clarity. With over 7 years of diverse writing experience, I share a wealth of wisdom and expertise with thousands of students, through PracticeMock every day, helping them achieve their goals.

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