Video Lectures of Mechanical Engineering Optional Notes for UPSC for UPSC CSE Exam
Watch free video lectures for Mechanical Engineering Optional Notes for UPSC covering all chapters/topics as per the latest syllabus in 2026. These concept videos, recorded lectures, and audio notes are designed to help UPSC CSE students understand every topic clearly — anytime, anywhere. Start learning on EduRev.
Basic Concepts & Zeroth Law of Thermodynamics
| Reversible & Irreversible Process 19:46 min |  |
First Law of Thermodynamics
| Open System, Closed System & Isolated System 03:07 min | |
Second Law of Thermodynamics
| Heat Engines & Second Law Of Thermodynamics 04:37 min | |
| Carnot Cycle & Carnot Engine 20:53 min | |
| Ideal Work & Lost Work 45:42 min | |
Entropy
| Fun Video: What is Entropy? 05:20 min | |
| Introduction to Entropy 08:15 min | |
Availability & Irreversibility
| Availability & Available Energy 06:38 min | |
| Available Energy 07:52 min | |
| Availability of Energy Entering a System 06:22 min | |
Properties of Pure Substances
| Introduction to Pure Substances 04:28 min | |
| Phases of Pure Substances 07:43 min | |
| P T Diagram: Pure Substances 03:44 min | |
Thermodynamic Relations
| Maxwell's Relations 05:26 min | |
Applications
| How to Use Steam Tables 15:36 min | |
| Refrigeration & Air-Conditioning 14:43 min | |
| Vapour Compression Cycle 05:36 min | |
| Gas Refrigeration 07:14 min | |
| Psychrometric chart 05:18 min | |
| Applications: Turbomachinery 05:11 min | |
| Francis Turbine 04:14 min | |
System of Forces
| Basics of Mechanics 08:34 min | |
| Force & Moments 02:35 min | |
| Fundamental Concepts 04:16 min | |
| Addition & Subtraction of Cartesian Vectors 07:34 min | |
| Cross Product of Vectors 04:08 min | |
| Principle of Moments 04:46 min | |
| Moment of a Force about a Point 10:40 min | |
| Moment of Force on a Rigid Body 08:07 min | |
| Resultants of a Force & Couple System 09:36 min | |
Free Body Diagrams & Equilibrium Equations
| Coplanar Force Systems 07:24 min | |
| Equilibrium in 2D & Free Body Diagrams 07:42 min | |
| Equilibrium in 3D 10:14 min | |
Friction
| Rolling Resistance 01:46 min | |
Kinematics of Point Mass & Rigid Bodies
| Centre of Mass for Particles & Composite Bodies 08:27 min | |
| Projectile Motion 09:26 min | |
| Curvilinear Motion 05:54 min | |
Work & Energy
| Work Energy Principle 19:50 min | |
| Work, Energy & Power 09:55 min | |
| Potential Energy 10:00 min | |
Impulse, Momentum & Collision
| Impulse & Momentum 08:19 min | |
| Collisions - Kinetics of a Particle 05:14 min | |
| Elastic & Inelastic Collisions 05:14 min | |
Virtual Work
| Principle of Virtual Work 12:08 min | |
Introduction to Heat Transfer
| Introduction to Heat Transfer 04:32 min | |
| Modes of Heat Transfer 04:27 min | |
| Effect of Temperature on Thermal Conductivity 06:18 min | |
| Heat Equation Derivation 11:16 min | |
| Heat Equation Derivation for Cylindrical Coordinates 07:28 min | |
Steady State Heat Conduction
| 1D Steady-State Heat Conduction in Plane Wall With Generation of Thermal Energy 47:12 min | |
| 1D Radial Steady-State Conduction Heat Transfer 08:27 min | |
| Summary of One Dimensional Conduction Equations 09:35 min | |
| Overall Heat Transfer Coefficient. 12:19 min | |
| Unsteady Heat Conduction 08:47 min | |
Fins
| Heat Transfer Through Fins 19:03 min | |
Basic Concepts of Convection
| Free Convection Theory 19:11 min | |
| Convective Heat Transfer: One Dimensional - 1 11:26 min | |
| Convective Heat transfer: One Dimensional - 2 18:52 min | |
| Numerical on Free Convection - 1 07:18 min | |
| Newton’s Law of Cooling 10:02 min | |
| Numerical on Free Convection - 2 16:12 min | |
| Dimensionless Numbers 11:40 min | |
| Thermal Boundary Layer 30:02 min | |
Forced Convection
| Numerical: Forced Convection External Flow - 1 14:08 min | |
| Numerical: Forced Convection External Flow - 2 14:45 min | |
| Forced Convection 08:15 min | |
| Numerical: Forced Convection External Flow - 3 07:28 min | |
Natural Convection
| Introduction to Free Convection 08:46 min | |
| Natural (Free) Convection Heat transfer 05:32 min | |
Radiation
| Basics of Radiation 07:14 min | |
| Sources & Types of Radiation 08:33 min | |
| Black Body Radiation 03:16 min | |
| Perfect Black Body: Radiative Heat Transfer 03:03 min | |
| Radiation & Cooling Effect 05:11 min | |
| Radiation & Frost 05:54 min | |
| Earth's Equilibrium Temperature 07:01 min | |
| Radiation & Equilibrium Temperature 05:15 min | |
| Radiation From the Sun 05:24 min | |
| Heat Radiation From the Skin 04:26 min | |
| Radiation & Condensation 03:18 min | |
| Thermal Radiation 03:56 min | |
| Stefan Boltzmann Law 03:36 min | |
| Wien's Displacement law 05:49 min | |
Heat Exchangers
| Introduction of Heat Exchangers 05:53 min | |
| Sizing a Heat Exchanger: Counter Flow 06:44 min | |
| U Tube Type Shell & Tube Heat Exchangers 07:03 min | |
| Heat Exchanger & LMTD 19:39 min | |
| LMTD for Parallel Flow Heat Exchanger 17:15 min | |
Boiling & Condensation
| Nucleate Boiling Example 06:09 min | |
| Nucleate Pool Boiling: Units Conversion 03:08 min | |
| Film Pool Boiling 08:07 min | |
Evaporators
| Falling Film Evaporator 02:31 min | |
| Agitated Film Evaporator 01:20 min | |
| Batch Type Pan Evaporator 02:20 min | |
| Introduction to Single Effect Evaporator 01:45 min | |
| Introduction to Multiple Effect Evaporator 03:19 min | |
| Single Effect Evaporator: Mass and Enthalpy Balance 10:34 min | |
| Multiple Effect Evaporator: Mass and Enthalpy Balance 10:00 min | |
Structure of Engineering Materials
| Mechanical Properties of Engineering Materials 17:06 min | |
| Crystal Structure & Properties 16:13 min | |
Mechanical Properties of Metals
| Mechanical Properties of Materials 05:04 min | |
| Material Strength, Ductility & Toughness 07:19 min | |
Phase Diagrams
| Iron Carbon Phase Diagram 23:42 min | |
| Different Phases of Steel 16:33 min | |
Heat Treatment of Steels
| Heat Treatment of Metals 11:23 min | |
| Types of Heat Treatment Process 18:17 min | |
Stress Strain Diagrams for Engineering Materials
| Stress-Strain Diagrams 21:47 min | |
| Stress-Strain Diagram for Ductile Materials 09:26 min | |
| Stress strain diagram of mild steel 04:33 min | |
Simple Mechanisms
| Types of Constrained Motion 06:08 min | |
| Grashof Law: Can this linkage act as a Double Crank Mechanism? 01:17 min | |
| Introduction to Mechanisms 05:44 min | |
| Kinematic Pairs 05:21 min | |
| Constrained Motion 06:08 min | |
| Degree of Freedom 04:56 min | |
| Inversion of Mechanisms 17:06 min | |
Velocity & Acceleration Analysis
| Concept of Relative Velocity 05:22 min | |
| Velocity Analysis 05:07 min | |
| Velocity Analysis of 4 Bar Mechanism 04:38 min | |
| Problem on Velocity Analysis 21:59 min | |
| Instantaneous Centre Method 06:22 min | |
| Problem on Instantaneous Centre Method 20:10 min | |
| Arnold-Kennedy Theorem 02:24 min | |
| Angular Velocities of Link 03:39 min | |
| Total Acceleration of a Link 03:49 min | |
| Acceleration Analysis For a 4 Bar Chain 29:55 min | |
| Coriolis Acceleration 05:46 min | |
| Graphical & Analytical Methods: Displacement Analysis of Plane Mechanisms 20:09 min | |
| Motion Analysis of Reciprocating Mechanism 06:29 min | |
| Velocity of Piston 02:47 min | |
| Acceleration of Piston 02:01 min | |
| Angular Velocity of Connecting Rod 02:30 min | |
| Angular Acceleration of Connecting Rod 04:50 min | |
| Equilibrium Forces In Out Stroke 04:47 min | |
Flywheel
| How a Flywheel Works 01:17 min | |
| Determination of Maximum Fluctuation of Energy 03:57 min | |
| Coefficient of Fluctuation of Energy 03:17 min | |
| Coefficient of Fluctuation of Speed 02:44 min | |
| Energy Stored in a Flywheel 05:09 min | |
| Turning Moment Diagram For a 4 Stroke Cycle 06:49 min | |
Governors
| Types of Governors 07:31 min | |
| Porter Governor 07:59 min | |
| Proell Governor 05:38 min | |
| Stability of a Governor 01:24 min | |
| Hartnell Governor 12:07 min | |
| Isochronism: Governors 00:48 min | |
Cams & Followers
| Cam Terminology 08:33 min | |
| Types of CAMS & Followers 04:50 min | |
| Follower Motion-Simple Harmonic Motion (SHM) 09:27 min | |
Balancing
| Balancing of Single Rotating Mass 03:32 min | |
| Balancing of Single Rotating Mass By Two Balancing Mass 06:58 min | |
| Many Masses Rotating in the Same Plane 05:34 min | |
| Many Masses Rotating in Different Planes 09:50 min | |
| Balancing of Reciprocating Engine 05:08 min | |
| Partial Primary Balance 05:41 min | |
Gyroscope
| Processional Motion 08:59 min | |
| Gyroscopic Couple For a Plane Disc 03:14 min | |
| Gyroscopic Effects on an Aeroplane 04:08 min | |
| Gyroscopic Effects on a Four Wheel Vehicle 08:55 min | |
| Numerical on Gyroscopic Effect 10:10 min | |
Gears
| Gear Terminology 08:57 min | |
| Minimum Number of Teeth-Pinion 03:29 min | |
| Problem on Gears 04:08 min | |
Gear Trains
| Compound Gear Trains 05:18 min | |
| Epicyclic Gear Train 03:12 min | |
| Problem on Epicyclic Gear Train 03:05 min | |
Belts, Ropes & Chains
| Angular Velocity Radio of a Flat Belt 04:39 min | |
| Length of Open Belt 08:26 min | |
| Length of Cross Belt 05:23 min | |
| Ratio of Belt Tensions 04:56 min | |
| Problem on Belt Drive 19:01 min | |
| Ratio of Tension In V-Belts 04:49 min | |
Vibrations
| Forced Vibrations of a Single Degree of Freedom System (SDOF) & Dynamic Instability 11:12 min | |
| Elements of a Vibratory System 05:38 min | |
| Types of Vibration 02:34 min | |
| Newton's Method 06:56 min | |
| Spring Combinations 03:16 min | |
| Torsional Vibrations 03:12 min | |
| Free Damped Vibration 06:34 min | |
| Overdamped System 02:21 min | |
| Critically Damped System 02:08 min | |
| Under Damped Vibration 02:53 min | |
| Logarithmic Decrement 03:23 min | |
| Forced Damped Vibration 07:59 min | |
| Forced Vibration due to Rotational Unbalance 03:33 min | |
| Previous year Questions: Vibrations 22:34 min | |
Applications
| How to Use Steam Tables 15:36 min | |
| Refrigeration & Air-Conditioning 14:43 min | |
| Vapour Compression Cycle 05:36 min | |
| Gas Refrigeration 07:14 min | |
| Psychrometric chart 05:18 min | |
| Applications: Turbomachinery 05:11 min | |
| Francis Turbine 04:14 min | |
Metal Casting
| Investment Casting 01:27 min | |
| Types of Patterns 05:19 min | |
| Riser & Gating Design 13:43 min | |
| Solidification of Pure Metal & Alloy 04:27 min | |
| Chvorinov's rule 08:25 min | |
Welding
| Classification of Welding 05:38 min | |
| Types of Welding 05:21 min | |
| Soldering & Brazing 03:31 min | |
| Welding Defects 03:51 min | |
Machining & Machine Tool Operations
| Machining Process 03:56 min | |
| Basic Machining Parameters 17:53 min | |
| Cutting Tool Geometry 02:15 min | |
| Forces in machining, Merchant's Circle Diagram 05:45 min | |
Metal Forming
| How Things are Made 10:29 min | |
| Load Estimation for Bulk Rolling 03:26 min | |
| Extrusion Process 02:17 min | |
| Drawing Process 01:15 min | |
| Shearing & Bending of Materials 04:04 min | |
| Powder Metallurgy Process 07:23 min | |
Metrology & Inspection
| Introduction to Metrology 04:30 min | |
| Traceability of Standards 08:23 min | |
| Slip Gauges & Their Calibration 17:00 min | |
| Shaft Tolerances & Fits 03:22 min | |
| Fits & Tolerances 06:05 min | |
| Types of Gauges 02:46 min | |
| Go & No Go Gauges 03:12 min | |
| What is a Comparator? 03:35 min | |
| Working of Comparators & Dial Indicator 06:14 min | |
| Optical Flat: Interferometry 14:07 min | |
| Surface Finish Measurement 04:06 min | |
| Previous year Questions: Vibrations 22:34 min | |
Computer Integrated Manufacturing
| Introduction to CAD 01:51 min | |
| Fun Video: Future of CAD 08:58 min | |
| Flexible Manufacturing Systems 03:12 min | |
| Geometric Modeling 22:32 min | |
| Finite Element Analysis 06:26 min | |
| Cellular Manufacturing 02:32 min | |
| Group Technology 56:34 min | |
| Previous year Questions: Vibrations 22:34 min | |
Unconventional Machining Processes
| Previous year Questions: Vibrations 22:34 min | |
| Economics of Machining 13:10 min | |
| Non-Conventional Machining 11:27 min | |
Additive Manufacturing
| What is Additive Manufacturing? 03:49 min | |
| Understanding Electron Beam Melting 10:10 min | |
| Laser Power Bed Fusiom 08:04 min | |
Steam Engineering
| Problem Solving (Rankine Cycle) 27:25 min | |
| Fire Tube Boilers 27:05 min | |
| Problem Solving (Nozzles and diffusers) 31:58 min | |
| Compounding of Steam Turbine 25:04 min | |
| Energy Losses in Steam Turbine 33:10 min | |
| Axial Flow Compressor 34:42 min | |
| Steam Generators 29:54 min | |
| Impulse Reaction Steam Turbine 30:30 min | |
| Gas Turbine cycle Performance Evaluations 30:18 min | |
| Gas Turbine cycle - Modifications 27:30 min | |
| Centrifugal Compressors 38:05 min | |
| Centrifugal Compressors Characteristics 31:23 min | |
| Problem Solving 41:19 min | |
| Performance of Rankine Cycle 29:08 min | |
| Binary vapour cycle and co-generation 25:12 min | |
| Impulse Reaction Steam Turbine Performance 30:28 min | |
| Gas turbine cycle 30:19 min | |
| Problem Solving (Gas Turbine Cycle) 36:52 min | |
| Axial Flow Compressor Characteristics 29:47 min | |
| Review of Thermodynamics 28:25 min | |
| High Pressure Boilers (Part-2) 23:33 min | |
| Performance of Boiler 28:42 min | |
| Combustion of fuel (Problem solving) 23:22 min | |
| Nozzles and Diffusers- General Relationships and SupersaturatedFlow 26:34 min | |
| Impulse Steam Turbine 34:33 min | |
| Water Tube Boilers 22:29 min | |
| Boiler Mountings and Accessories 30:24 min | |
| High Pressure Boilers (Part-1) 25:41 min | |
| Combustion of Fuel 27:45 min | |
| Nozzles and Diffusers - Momentum and Continuity Equations 25:14 min | |
| Nozzles and Diffusers- Efficiency and Critical Pressure 24:18 min | |
| Impulse Steam Turbine Performance 27:23 min | |
| Problem solving (Impulse Steam Turbine) 33:10 min | |
| Problem Solving (Steam Turbine) 31:56 min | |
