Mechanical Engineering Interview Questions

First of all, questions asked in Mechanical Engineering interview are depend upon the industry/organisation, in which you are going for interview, for example if you’re going to any production based industry then they will ask you questions pertaining to production like what is production, how to increase production, how to motivate workers, what is Gantt chart, and the like. On the other hand, if you are going to any manufacturing based industry where they manufacture mechanical parts, engines, machines etc then they will ask you questions like what is machine, what is link/force, and the like. So prepare yourself according to industry where you’re going for interview and also gather knowledge about the industry; where you are going for interview, to make positive impression. Here are some questions which may be asked in your interview.

Please Note: These questions are meant to give you an idea of the Mechanical interview questions only.

Mechanical interview questions


  1. Please introduce yourself?
  2. Tell me about yourself?
  3. Why do you want to join our company?
  4. What is your aim in life?
  5. Please tell me about your Family?
  6. Why do you want to join this company?
  7. What are your hobbies?
  8. What do you know about Mechanical Engineering?
  9. Which is your favorite subject?
  10. What is Heat Ex-Changer?
  11. How it works?
  12. What is turbo charger?
  13. How it works?
  14. What is a Machine/Definition of Machine?
  15. Types of Machine?
  16. What is engineering?
  17. What is Supercharger?
  18. What is Boiler?
  19. Types of boiler?
  20. Name boiler accessories?
  21. Name boiler Mountings?
  22. What is Refrigeration?
  23. What is Refrigeration cycle?
  24. Types of Refrigeration?
  25. Why pressure cooker cook food fast?
  26. What is latent Heat?
  27. What is sensible Heat?
  28. What is Motor and how it works?
  29. Types of motor?
  30. Which shaft is more strong hollow shaft or solid shaft and why?
  31. What is coupling and its types?
  32. Draw carnot cycle /otto cycle/diesel cycle?
  33. What is refrigerant?
  34. Various parts of Air conditioner?
  35. How battery charge?
  36. Types of batteries?
  37. What is Mechanical engineering?
  38. What is the duties of a engineer on ship?
  39. What is rocker arm?
  40. What is push rod?
  41. How valves operate?
  42. What is intercooler?
  43. What is a gear?
  44. Types of Gear?
  45. What is TDC, BDC, IDC, ODC?
  46. What is link?
  47. Centrifugal pump?
  48. Centrifugal force?
  49. Moment of inertia?
  50. What is factor of safety?
  51. What is Bouncy/force of bouncy/ Metacentre/Centre of bouncy?
  52. What is Alternator/Dynamo/Distributor/Differential?
  53. What is welding and its types?
  54. Anti-lock braking system?
  55. What is camber/axle?
  56. What is barometer/Venturimeter/Bernoulli’s theorem?
  57. What is 1st, 2nd, or 3rd law of Newton?
  58. Laws of thermodynamic?
  59.  What is Kirchhoff law?
  60. What is SONAR/RADAR?
  61. Various parts of ship?
  62. What is Strength/Hardness/Ductility/Malleability/Frequency/Toughness/Brittleness?
  63. What is toe in /toe out?
  64. Types of Steering?
  65. What is Evaporation/Condensation?
  66. What is Enthalpy/Entropy?
  67. Types of Pump?
  68. Types of compressors?
  69. What is scavenging?
  70. What is clearance volume/swept volume?
  71. What is Knocking/Detonation?
  72. What is Engine?
  73. How four stroke/Two stroke Petrol engine works?
  74. How four stroke/Two stroke Diesel engine works?
  75. Ports in two stroke Diesel/petrol engine?
  76. How four stroke/Two stroke Petrol engine works?
  77. What is Timing Chain?
  78. Draw valve timing diagram of two/four stroke petrol/diesel engine?
  79. What is Turbine/Generator?
  80. Difference b/w A.C. and D.C?
  81. How to convert A.C. into D.C.?
  82. Difference b/w A.C. motor and D.C. motor?
  83. What is Universal joint?
  84. What is spring and its types?
  85. What is the purpose of piston rings?
  86. What is Tappet clearance?
  87. What is specific heat?
  88. What is C.O.P.?
  89. What is Specific gravity/volumetric efficiency ?
  90.  What is Adiabatic/Isentropic process?
  91. Boyle/Charles’s law?
  92. What is Tractive Force/
  93. What is Gadget pin/
  94. What is King pin?
  95. What is Critical Temperature?
  96. What is fullering and caulking?

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