MCQ Tests for - UPSC CSE Mechanical Engineering Optional Notes for UPSC
Master your UPSC CSE Mechanical Engineering Optional Notes for UPSC 2026 preparation with free online tests, MCQs & practice quizzes for all chapters, provided with solutions.
Basic Concepts & Zeroth Law of Thermodynamics
| Test: Basic Concept - 1 15 Ques | 30 Mins |  |
| Test: Basic Concept - 2 10 Ques | 30 Mins | |
| Test: Basic Concept - 3 15 Ques | 30 Mins | |
| Test: Basic Thermodynamics 25 Ques | 75 Mins | |
| Test: Temperature 10 Ques | 30 Mins | |
First Law of Thermodynamics
| Test: First Law of Thermodynamics - 1 10 Ques | 30 Mins | |
| Test: First Law of Thermodynamics - 2 15 Ques | 45 Mins | |
| Test: First Law Applied to Flow Process 10 Ques | 30 Mins | |
Second Law of Thermodynamics
| Test: Second Law of Thermodynamics - 1 15 Ques | 30 Mins | |
| Test: Second Law of Thermodynamics - 2 10 Ques | 30 Mins | |
| Test: Second Law of Thermodynamics - 3 10 Ques | 30 Mins | |
Entropy
| Test: Entropy - 1 10 Ques | 30 Mins | |
| Test: Entropy - 2 10 Ques | 30 Mins | |
| Test: Entropy - 3 15 Ques | 45 Mins | |
Availability & Irreversibility
| Test: Availability & Irreversibility 10 Ques | 30 Mins | |
| Past Year Questions: Availability And Irreversibility 6 Ques | 5 Mins | |
Properties of Pure Substances
| Test: Properties of Pure Substances - 1 10 Ques | 30 Mins | |
| Test: Properties of Pure Substances - 2 9 Ques | 30 Mins | |
Thermodynamic Relations
| Test: Thermodynamic Relations - 1 10 Ques | 30 Mins | |
| Test: Thermodynamic Relations - 2 10 Ques | 30 Mins | |
| Test: Thermodynamic Relations - 3 10 Ques | 30 Mins | |
Applications
| Test: Basics of Refrigerating Machine - 1 10 Ques | 30 Mins | |
| Test: Refrigerants - 1 10 Ques | 30 Mins | |
| Test: Basics of Refrigerating Machine - 2 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 1 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 2 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 3 30 Ques | 90 Mins | |
| Test: Refrigerants - 2 10 Ques | 30 Mins | |
| Test: Refrigerant Compressors 10 Ques | 30 Mins | |
| Test: Refrigerants - 3 15 Ques | 45 Mins | |
| Test: Properties of Moist Air - 1 10 Ques | 30 Mins | |
| Test: Properties of Moist Air - 2 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 1 10 Ques | 30 Mins | |
| Test: Properties of Moist Air - 3 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 2 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 3 20 Ques | 60 Mins | |
System of Forces
| Test: Addition Of A System Of Coplanar Forces 14 Ques | 15 Mins | |
| Test: Dot Product And Cross Product 30 Ques | 30 Mins | |
| Test: Moment of A Force 25 Ques | 20 Mins | |
| Test: Reduction Of A Simple Distributed Loading 14 Ques | 20 Mins | |
| Test: Moment Of A Couple 14 Ques | 30 Mins | |
| Test: Moment Of A Force - 2 20 Ques | 40 Mins | |
| Test; Moment Of A Force On A Specified Axis 15 Ques | 30 Mins | |
| Test: Simplification Of A Force And Couple System 30 Ques | 50 Mins | |
| Test: Resultant Of A General Distributed Loading 15 Ques | 30 Mins | |
| Test: Simplification of a Force and Couple System 10 Ques | 30 Mins | |
Free Body Diagrams & Equilibrium Equations
| Test: Three Dimensional Force System 10 Ques | 10 Mins | |
| Test: Conditions For A Rigid-Body Equilibrium 30 Ques | 60 Mins | |
| Test: Constraints And Statical Determinacy 15 Ques | 30 Mins | |
| Test: Lami's Theorem 10 Ques | 30 Mins | |
| Test: Beams 10 Ques | 30 Mins | |
Friction
| Test: Characteristics Of Dry Friction - 1 25 Ques | 50 Mins | |
| Test: Characteristics Of Dry Friction - 2 20 Ques | 40 Mins | |
| Test: Problems Involving Dry Friction 15 Ques | 30 Mins | |
| Test: Wedges 15 Ques | 30 Mins | |
| Test: Rolling Resistance 15 Ques | 30 Mins | |
| Test: Frictional Forces On Screws 15 Ques | 30 Mins | |
| Test: Frictional Forces On Flat Belts 15 Ques | 30 Mins | |
| Test: Frictional Forces On Collar Bearing, Pivot Bearings And Disks 15 Ques | 30 Mins | |
| Test: Frictional Forces On Journal Bearings 15 Ques | 30 Mins | |
| Test: Introduction to Friction 10 Ques | 30 Mins | |
Kinematics of Point Mass & Rigid Bodies
| Test: Centre Of Mass 15 Ques | 30 Mins | |
| Test: Centroid Of A Body 15 Ques | 30 Mins | |
| Test: Centre Of Gravity 15 Ques | 30 Mins | |
| Test: Composite Bodies 14 Ques | 30 Mins | |
| Test: Moment of Inertia and Centroid 10 Ques | 30 Mins | |
| Test: Mass Moment of Inertia 10 Ques | 30 Mins | |
| Test: Kinematics and Kinetics 10 Ques | 30 Mins | |
| Test: Rectilinear Motion 10 Ques | 30 Mins | |
| Test: Curvilinear Motion 7 Ques | 30 Mins | |
| Test: Projectile Motion 10 Ques | 30 Mins | |
| Test: Conditions for a Rigid-Body 10 Ques | 30 Mins | |
Work & Energy
| Test: Work & Energy 10 Ques | 10 Mins | |
| Test: Work 30 Ques | 60 Mins | |
| Test: Conservative Forces 15 Ques | 30 Mins | |
| Test: Potential Energy 15 Ques | 30 Mins | |
| Test: Work and Energy Principle 10 Ques | 30 Mins | |
Impulse, Momentum & Collision
| Test: Impulse and Momentum 10 Ques | 30 Mins | |
| Test: Angular Momentum 10 Ques | 30 Mins | |
| Test: Types of Impact 8 Ques | 30 Mins | |
Virtual Work
| Test: Principle of Virtual Work 10 Ques | 30 Mins | |
Plane Trusses
| Test: Simple Trusses 30 Ques | 60 Mins | |
| Test: Zero Force Member 15 Ques | 30 Mins | |
| Test: Internal Forces Developed In Structural Members 30 Ques | 60 Mins | |
| Test: Frame And Machines 15 Ques | 30 Mins | |
| Test: Space Trusses 15 Ques | 30 Mins | |
| Test: Method Of Joints 15 Ques | 30 Mins | |
| Test: Method Of Sections 15 Ques | 30 Mins | |
| Test: Method of Section 10 Ques | 30 Mins | |
Introduction to Heat Transfer
| Test: Modes of Heat Transfer 10 Ques | 20 Mins | |
| Test: Steady & Unsteady Heat Transfer 10 Ques | 20 Mins | |
| Test: Basic Concepts of Heat Transfer - 1 10 Ques | 30 Mins | |
| Test: Basic Concepts of Heat Transfer - 2 10 Ques | 30 Mins | |
| Test: Basic Concepts of Heat Transfer - 3 10 Ques | 30 Mins | |
| Test: Introduction To Heat Transfer Level - 1 10 Ques | 25 Mins | |
| Test: Introduction To Heat Transfer Level - 2 10 Ques | 25 Mins | |
Steady State Heat Conduction
| Test: Fourier Equation 10 Ques | 20 Mins | |
| Test: Thermal Conductivity of Materials 10 Ques | 20 Mins | |
| Test: General Heat Conduction Equation 10 Ques | 20 Mins | |
| Test: Thermal Conductivity of Different Materials 10 Ques | 20 Mins | |
| Test: One-Dimensional Steady-state Conduction - 1 10 Ques | 30 Mins | |
| Test: One-Dimensional Steady-State Conduction - 2 10 Ques | 30 Mins | |
| Test: One-Dimensional Steady-State Conduction - 3 30 Ques | 90 Mins | |
| Test: Transient Heat Conduction - 1 10 Ques | 30 Mins | |
| Test: Conduction Level - 1 20 Ques | 30 Mins | |
| Test: Transient Heat Conduction - 2 8 Ques | 30 Mins | |
| Test: Conduction Level - 2 20 Ques | 45 Mins | |
| Test: Conduction Level - 3 20 Ques | 60 Mins | |
Fins
| Test: Heat Dissipation From Extended Surface - 1 10 Ques | 30 Mins | |
| Test: Heat Dissipation From Extended Surface - 2 10 Ques | 30 Mins | |
Basic Concepts of Convection
| Test: Types of Convection 10 Ques | 20 Mins | |
| Test: Nusselt Number 10 Ques | 20 Mins | |
| Test: Newton Rikhman Law 10 Ques | 20 Mins | |
Forced Convection
| Test: Correlations For Forced Convection 10 Ques | 10 Mins | |
| Test: Heat Transfer By Forced Convection - 1 10 Ques | 30 Mins | |
| Test: Heat Transfer By Forced Convection - 2 10 Ques | 30 Mins | |
Natural Convection
| Test: Heat Transfer By Natural Convection - 1 10 Ques | 30 Mins | |
| Test: Heat Transfer By Natural Convection - 2 8 Ques | 30 Mins | |
Radiation
| Test: Transmissivity 10 Ques | 10 Mins | |
| Test: Reflectivity 10 Ques | 10 Mins | |
| Test: Absorptivity 10 Ques | 10 Mins | |
| Test: Planck’s Law 10 Ques | 10 Mins | |
| Test: Stefan Boltzmann Law 10 Ques | 10 Mins | |
| Test: Wien’s Displacement Law 10 Ques | 10 Mins | |
| Test: Kirchoff’s Law 10 Ques | 10 Mins | |
| Test: Black Body 10 Ques | 10 Mins | |
| Test: Heat Exchange Between Black Bodies 10 Ques | 10 Mins | |
| Test: Gray Body & Selective Emitters 10 Ques | 10 Mins | |
| Test: Heat Exchange Between Non Black Bodies 10 Ques | 10 Mins | |
| Test: Radiations Shields 10 Ques | 10 Mins | |
| Test: Spectral & Spatial Energy Distribution 10 Ques | 10 Mins | |
| Test: Intensity of Radiations 10 Ques | 10 Mins | |
| Test: Solar Radiations 10 Ques | 10 Mins | |
| Test: Solar Absorptivity 10 Ques | 10 Mins | |
| Test: Shape Factor 11 Ques | 10 Mins | |
| Test: Network Approach For Heat Exchange 10 Ques | 10 Mins | |
| Test: Adiabatic & Reradiating Surfaces 10 Ques | 10 Mins | |
| Test: Gaseous Radiations 10 Ques | 10 Mins | |
| Test: Fouling Factor 10 Ques | 10 Mins | |
| Test: Geometrical & Thermo Physical Properties 10 Ques | 10 Mins | |
| Test: Radiation Heat Transfer - 1 10 Ques | 30 Mins | |
| Test: Radiation Heat Transfer - 2 10 Ques | 30 Mins | |
| Test: Radiation Heat Transfer - 3 30 Ques | 90 Mins | |
| Test: Radiative Heat Transfer Level - 1 20 Ques | 40 Mins | |
| Test: Radiative Heat Transfer Level - 2 20 Ques | 45 Mins | |
| Test: Radiative Heat Transfer Level - 3 20 Ques | 60 Mins | |
Heat Exchangers
| Test: Classification of Heat Exchanger 10 Ques | 10 Mins | |
| Test: Heat Transfer Coefficient 10 Ques | 10 Mins | |
| Test: Heat Exchanger Effectiveness 10 Ques | 10 Mins | |
| Test: Number of Transfer Units 10 Ques | 10 Mins | |
| Test: Heat Exchanger Level - 1 10 Ques | 25 Mins | |
| Test: Mean Value of Capacity Ratio 10 Ques | 10 Mins | |
| Test: Mean Temperature Difference 10 Ques | 10 Mins | |
| Test: Heat Exchanger Level - 2 10 Ques | 30 Mins | |
| Test: Specific Heat 10 Ques | 10 Mins | |
| Test: Heat Flux Through a Cylindrical Wall & Plate 10 Ques | 10 Mins | |
| Heat Exchanger - 1 10 Ques | 30 Mins | |
| Test: Heat Exchanger Level - 3 10 Ques | 40 Mins | |
| Heat Exchanger - 2 10 Ques | 30 Mins | |
Boiling & Condensation
| Test: Free Convection Boiling 10 Ques | 10 Mins | |
| Test: Boiling 10 Ques | 10 Mins | |
| Test: Nucleate Boiling 10 Ques | 10 Mins | |
| Test: Condensation 10 Ques | 10 Mins | |
| Test: Bubble Growth 10 Ques | 10 Mins | |
| Test: Laminar Film Condensation 10 Ques | 10 Mins | |
| Test: Turbulent Film Condensation 10 Ques | 10 Mins | |
Practice Tests
| Test: Heat Transfer - 1 25 Ques | 25 Mins | |
| Test: Heat Transfer - 2 25 Ques | 25 Mins | |
| Test: Heat Transfer - 3 25 Ques | 25 Mins | |
| Test: Heat Transfer - 4 25 Ques | 25 Mins | |
| Test: Heat Transfer - 5 25 Ques | 25 Mins | |
| Test: Heat Transfer - 6 25 Ques | 25 Mins | |
| Test: Heat Transfer - 7 25 Ques | 25 Mins | |
| Test: Heat Transfer - 8 25 Ques | 25 Mins | |
Evaporators
| Test: Evaporators 10 Ques | 20 Mins | |
Structure of Engineering Materials
| Test: Structural of Metals & Alloys - 1 10 Ques | 30 Mins | |
| Test: Structural of Metals & Alloys - 2 10 Ques | 30 Mins | |
| Test: Structural of Metals & Alloys - 3 20 Ques | 60 Mins | |
Mechanical Properties of Metals
| Test: Mechanical Properties - 1 10 Ques | 30 Mins | |
| Test: Mechanical Properties - 2 10 Ques | 30 Mins | |
| Test: Mechanical Properties - 3 20 Ques | 60 Mins | |
Phase Diagrams
| Test: Equilibrium Diagrams & Phase Changes - 1 10 Ques | 30 Mins | |
| Test: Equilibrium Diagrams & Phase Changes - 2 10 Ques | 30 Mins | |
| Test: Equilibrium Diagrams & Phase Changes - 3 30 Ques | 90 Mins | |
Heat Treatment of Steels
| Test: Heat Treatment of Steels - 1 10 Ques | 30 Mins | |
| Test: Heat Treatment of Steels - 2 10 Ques | 30 Mins | |
| Test: Heat Treatment of Steels - 3 30 Ques | 90 Mins | |
Stress Strain Diagrams for Engineering Materials
| Test: Stress Strain Diagrams & Mechanical Properties 10 Ques | 20 Mins | |
Simple Mechanisms
| Test: Simple Mechanisms - 1 10 Ques | 30 Mins | |
| Test: Simple Mechanisms - 2 10 Ques | 30 Mins | |
| Test: Mechanism With Lower Pairs - 1 10 Ques | 30 Mins | |
| Test: Mechanism With Lower Pairs - 2 7 Ques | 20 Mins | |
| Test: Simple Mechanisms - 3 30 Ques | 90 Mins | |
Velocity & Acceleration Analysis
| Test: Velocity & Acceleration Analysis - 1 10 Ques | 30 Mins | |
| Test: Velocity & Acceleration Analysis - 2 10 Ques | 30 Mins | |
| Test: Velocity & Acceleration Analysis - 3 10 Ques | 30 Mins | |
Flywheel
| Test: Flywheels - 1 10 Ques | 30 Mins | |
| Test: Flywheels - 2 10 Ques | 30 Mins | |
Governors
| Test: Governors - 1 10 Ques | 30 Mins | |
| Test: Governors - 2 10 Ques | 30 Mins | |
| Test: Governors - 3 10 Ques | 30 Mins | |
Cams & Followers
| Test: Cams - 1 10 Ques | 30 Mins | |
| Test: Cams - 2 10 Ques | 30 Mins | |
Balancing
| Test: Balancing - 1 10 Ques | 30 Mins | |
| Test: Balancing - 2 10 Ques | 30 Mins | |
Gyroscope
| Test: Gyroscope 10 Ques | 30 Mins | |
Gears
| Test: Toothed Gearing - 1 10 Ques | 30 Mins | |
| Test: Toothed Gearing - 2 10 Ques | 30 Mins | |
| Test: Toothed Gearing - 3 20 Ques | 60 Mins | |
Gear Trains
| Test: Gear Trains - 1 10 Ques | 30 Mins | |
| Test: Gear Trains - 2 10 Ques | 30 Mins | |
Belts, Ropes & Chains
| Test: Belt, Rope & Chain Drives - 1 10 Ques | 30 Mins | |
| Test: Belt, Rope & Chain Drives - 2 10 Ques | 30 Mins | |
| Test: Belt, Rope & Chain Drives - 3 20 Ques | 60 Mins | |
Vibrations
| Test: Linear Vibration Analysis - 1 10 Ques | 30 Mins | |
| Test: Linear Vibration Analysis - 2 10 Ques | 30 Mins | |
| Test: Linear Vibration Analysis - 3 20 Ques | 60 Mins | |
IC Engines
| Test: IC Engine Level - 1 25 Ques | 50 Mins | |
| Test: IC Engine Level - 2 25 Ques | 50 Mins | |
Applications
| Test: Basics of Refrigerating Machine - 1 10 Ques | 30 Mins | |
| Test: Refrigerants - 1 10 Ques | 30 Mins | |
| Test: Basics of Refrigerating Machine - 2 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 1 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 2 10 Ques | 30 Mins | |
| Test: Refrigeration Cycles & Systems - 3 30 Ques | 90 Mins | |
| Test: Refrigerants - 2 10 Ques | 30 Mins | |
| Test: Refrigerant Compressors 10 Ques | 30 Mins | |
| Test: Refrigerants - 3 15 Ques | 45 Mins | |
| Test: Properties of Moist Air - 1 10 Ques | 30 Mins | |
| Test: Properties of Moist Air - 2 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 1 10 Ques | 30 Mins | |
| Test: Properties of Moist Air - 3 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 2 10 Ques | 30 Mins | |
| Test: Psychrometric Chart & Its Application to Air-Conditioning - 3 20 Ques | 60 Mins | |
Metal Casting
| Test: Casting Processes - 1 10 Ques | 30 Mins | |
| Test: Casting Processes - 2 10 Ques | 30 Mins | |
| Test: Casting Processes - 3 30 Ques | 90 Mins | |
| Test: Casting Level - 1 20 Ques | 25 Mins | |
| Test: Casting Level - 2 20 Ques | 30 Mins | |
| Test: Casting Level - 3 20 Ques | 60 Mins | |
Welding
| Test: Joining Processes - 1 10 Ques | 30 Mins | |
| Test: Joining Processes - 2 10 Ques | 30 Mins | |
| Test: Joining Processes - 3 30 Ques | 90 Mins | |
Machining & Machine Tool Operations
| Test: Machining Processes - 1 10 Ques | 30 Mins | |
| Test: Machining Processes - 2 10 Ques | 30 Mins | |
| Test: Metal Cutting & Tool Materials - 1 10 Ques | 30 Mins | |
| Test: Metal Cutting & Tool Materials - 2 10 Ques | 30 Mins | |
| Test: Metal Cutting & Tool Materials - 3 30 Ques | 90 Mins | |
| Test: Machining Processes - 3 30 Ques | 90 Mins | |
Metal Forming
| Test: Forming Processes - 1 10 Ques | 30 Mins | |
| Test: Forming Processes - 2 10 Ques | 30 Mins | |
| Test: Forming Processes - 3 30 Ques | 90 Mins | |
Metrology & Inspection
| Test: Metrology - 1 10 Ques | 30 Mins | |
| Test: Metrology - 2 10 Ques | 30 Mins | |
| Test: Fits & Tolerance - 1 10 Ques | 30 Mins | |
| Test: Fits & Tolerance - 2 10 Ques | 30 Mins | |
Computer Integrated Manufacturing
| Test: Numerical Control of Machine Tools - 1 10 Ques | 30 Mins | |
| Test: Numerical Control of Machine Tools - 2 10 Ques | 30 Mins | |
Unconventional Machining Processes
| Test: Unconventional Machining Process - 1 10 Ques | 30 Mins | |
| Test: Unconventional Machining Process - 2 10 Ques | 30 Mins | |
| Test: Unconventional Machining Process - 3 10 Ques | 30 Mins | |
| Test: Jigs & Fixtures - 1 10 Ques | 30 Mins | |
| Test: Jigs & Fixtures - 2 6 Ques | 30 Mins | |
Refrigeration and air-conditioning
| Test: RAC Level - 1 25 Ques | 50 Mins | |
| Test: RAC Level - 2 25 Ques | 50 Mins | |
