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100+ Mechanical engineering Interview questions

More than 100 interesting question and answers from various Mechanical engineering subjects - Get Interview ready

J. Aatish Roa


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Study method
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2.3 hours · Self-paced
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  • Reed Courses Certificate of Completion - Free
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Mechanical engineering final year students,graduates and even professionals, often stumbles to find a righteous guide towards acing their INTERVIEW or VIVA. I too as a student,gone through the same. In my 8+ years of industrial career,I have encountered numerous interviews and the ordeal that followed. So here is my effort to make it somewhat easy for you guys. I have compiled 100+ mechanical engineering INTERVIEW/VIVA questions which would surely help you out not only in acing interviews or viva, But also in strengthening your academics.


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2h 19m
    • 1: Scope Of The Course 03:12
    • 2: Introduction to Basic Mechanical Engineering 01:50
    • 3: Explain the term torque. 03:04
    • 4: State Archimedes Principle. 02:29
    • 5: What is the importance of tolerance in engineering? 04:11
    • 6: Explain different types of fits. 02:55
    • 7: Introduction to Manufacturing & Material Science 01:14
    • 8: Define pitting. 02:49
    • 9: Distinguish Between A Jig And Fixture. 02:31
    • 10: Explain knurling. 02:59
    • 11: Why is heat treatment of steel metal crucial? 02:37
    • 12: What is extruded aluminium? 02:05
    • 13: What do you mean by annealing? 03:31
    • 14: How is martensite structure formed in steel? 03:43
    • 15: Introduction to Strength Of Material 01:16
    • 16: Define a uniformly distributed load. 03:38
    • 17: Define Buckling Factor. 02:09
    • 18: Is it the stress that produces strain or vice-versa? 03:45
    • 19: What is the value of modulus of elasticity of steel? 02:37
    • 20: What is Stress Concentration? 03:08
    • 21: Introduction to Theory Of Machine 01:09
    • 22: What is gear ratio? 00:50
    • 23: What do you mean by cotter joint. 03:56
    • 24: What are the advantages of Gear drive? 04:02
    • 25: What are the benefits of cycloidal gears? 03:11
    • 26: Introduction to automobile engineering 01:10
    • 27: What are the various types of brakes? 03:26
    • 28: Differentiate between scavenging and supercharging. 03:18
    • 29: In IC engine which part is known as column? 02:56
    • 30: What causes white smoke in two stroke locomotive engines? 02:38
    • 31: What is the difference between turbocharger and supercharger? 01:58
    • 32: Introduction to Fluid Mechanics 01:10
    • 33: Explain The Difference Between Rotational And Irrotational Flow? 02:57
    • 34: Navier Stokes Equation Represents The Conservation Of Which Quantity? 02:34
    • 35: What are major and minor head losses in a fluid flow system? 02:44
    • 36: What is a Newtonian fluid? 04:50
    • 37: What are the differences between elbows and bend? Which has greater head losses? 05:12
    • 38: What is the ratio of the thickness of TBL to the thickness of HBL? 03:25
    • 39: Introduction to Thermodynamics 01:06
    • 40: What is the second law of thermodynamics? 03:33
    • 41: What is the difference between the heat engine & heat pump? 04:41
    • 42: Introduction to RAC & HMT 01:25
    • 43: What is Refrigeration? What is the unit of refrigeration? 02:40
    • 44: Which Cycle is used in Air Refrigeration System? 01:49
    • 45: What do you mean by emissive power? 01:46
    • 46: What is Under-cooling or Sub-cooling of refrigeration system? 03:12
    • 47: Explain mechanical refrigeration. 02:22
    • 48: What is heat transfer co-efficient? 01:25
    • 49: What is the advantage of using pneumatic? 02:48
    • 50: Define least count. How to calculate for vernier calipers? 02:04
    • 51: Why do you need a biological shield in nuclear plants? 02:33

Course media


If you are a mechanical engineering final year/Pre-final year student,A graduate, Or even a working professional, This course is meant for you.

More than a hundred questions are discussed from the realm of mechanical engineering.The course is designed in such a way that most of the major subjects are covered as such -

  • Basic Mechanical Engineering (BME)

  • Manufacturing Science

  • Material Science

  • Strength Of Material (SOM)

  • Theory Of Machine (TOM)

  • Automobile Engineering

  • Fluid Mechanics (FM)

  • Thermodynamics

  • Refrigeration & Air Conditioning (RAC)

  • Heat & Mass Transfer (HMT) & Many more.

There are two answers for every question in the course -

  1. Explanatory Answer - Which contains relatively easy language & practical approach.

  2. Interview Answer - Bit theoretical (Boring) but can be considered apt while facing Interview/Viva.

The questions are divided into three levels - EASY,MEDIUM & HARD. However you might think a hard question as a easy one or vice-versa. In either case, You are always going to get one thing in return - KNOWLEDGE !!

Who is this course for?

  • Pre-Final Year mechanical engineering students
  • Final year mechanical engineering students
  • Mechanical engineering graduates and professionals
  • Anyone from mechanical stream who wants to sharpen their interview skills
  • Students preparing for their practicals (Viva) in the mechanical engineering stream.


  • Basic Physics - Density,Viscosity,Law of conservation of energy,Moment,Buoyancy,Moment Of Inertia etc.
  • Basic Mathematics - Differentiation,Integration,Partial differentiation,Logarithm etc.
  • Basic Mechanical Engineering - Welding,Crystal structure,Metal casting,Fe-C phase diagram,Stress & strain,P-V diagram etc.

Career path

  • What Job roles you can apply after completing the course

    • Entry level mechanical engineering job as such GET (Graduate Engineer Trainee) & DET (Diploma Engineering Trainee)

Questions and answers

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