Crack Mechanical Engineering Interviews & Vivas

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300 MCQ practice questions covering 10 core mechanical engineering subjects and 100 essential topics. Perfect for interview preparation, viva exams, and technical assessments.

A focused collection of must-know Mechanical Engineering terms that interviewers regularly ask. Covers fundamentals from Strength of Materials(SOM), Manufacturing, Thermodynamics, Drawing, and Metrology designed to refresh concepts quickly and help you answer with confidence in interviews and technical rounds.

Set-01 Strength of Materials

Lessons

Stress & strain basics Preview Elastic vs plastic behavior Young’s modulus, Poisson’s ratio Hooke’s law Yield point, UTS, fracture Factor of safety Bending stress Torsion Shear stress Stress–strain curve

Set-02 Manufacturing & Production

Lessons

Casting vs forging Machining processes CNC basics Tolerances Surface finish Heat treatment Annealing / normalizing / quenching Welding vs brazing vs soldering Jigs & fixtures Lean manufacturing

Set-03 Engineering Drawing & GD&T

Lessons

Orthographic projection Isometric view First angle vs third angle Datum Tolerance vs allowance Flatness, parallelism Position tolerance Runout MMC & LMC Surface roughness symbols

Set-04 Thermodynamics

Lessons

System vs control volume Zeroth, First, Second law Entropy Enthalpy Heat vs work Carnot cycle Rankine cycle Otto vs Diesel cycle COP Refrigeration basics

Set-05 Fluid Mechanics

Lessons

Laminar vs turbulent flow Reynolds number Bernoulli’s principle Continuity equation Head loss Boundary layer Cavitation Pumps vs turbines Manometer Viscosity

Set-06 Machine Design

Lessons

Failure theories Fatigue Endurance limit Stress concentration Keys & couplings Bearings Gears Shafts Springs Fits (clearance/interference)

Set-07 Metrology & Quality

Lessons

Least count Accuracy vs precision Vernier caliper Micrometer Gauge blocks CMM Calibration Repeatability Measurement error ISO standards basics

Set-08 Heat Transfer

Lessons

Conduction Convection Radiation Fourier’s law Newton’s law of cooling Heat exchanger LMTD Fins Thermal resistance Black body

Set-09 Automation & Industry Basics

Lessons

PLC Sensors Actuators Automation levels Industry 4.0 CNC automation Robotics basics Feedback systems PID control Smart manufacturing

Set-10 General Mechanical Awareness

Lessons

Torque Power RPM Efficiency Reliability Maintenance types Safety factor Load types Static vs dynamic load Failure modes