Mechanical Engineering MCQ Questions and Answers Quiz

11. CNG is an excellent for

  1. petrol engine
  2. Kerosene engine
  3. Diesel engine
  4. All of above

12. Cochran boiler is .

  1. Vertical boiler
  2. Natural circulation boiler
  3. Fire tube boiler
  4. All Of above

13. Compressor in which compression of air from suction pressure to delivery pressure takes place in more than one cylinder is called compressor.

  1. Single acting
  2. Double acting
  3. Single stage
  4. Multi stage

14. Compressor is a machine which is used to do

  1. lift liquid from low height to higher elevation
  2. To store liquid
  3. To compress gas.
  4. none of the above

15. Dryness fraction of wet steam is

  1. greater than 1
  2. less than 1
  3. #NAME?

16. During adiabatic process

  1. heat transfer is zero
  2. enthalpy remains constant
  3. work transfer is zero
  4. enthalpy change is zero.

17. During compression process which parameter will change?

  1. Pressure
  2. Volume
  3. Density
  4. All Of above

18. During suction stroke in a diesel engine, it draws in

  1. Vapour of petrol only
  2. Air only
  3. Mixture of petrol and air
  4. Only air

19. For earth moving machines, widely used engines are:

  1. Petrol engine
  2. Steam engine
  3. Diesel engine
  4. Gas engine

20. Function of piston rings is

  1. To connect piston and connecting road
  2. To transmit force from piston to crank
  3. To maintain a gas tight between the piston and the cylinder
  4. To convert reciprocating motion into rotary motion
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MCQ Multiple Choice Questions and Answers on Mechanical Engineering

Mechanical Engineering Question and Answer