Mechanical Engineering MCQ Questions and Answers Quiz

31. Natural fuel is

  1. That occur in nature
  2. Known as secondary fuel
  3. Prepared fuel
  4. None of the above

32. Petroleum is

  1. Solid fuel
  2. Liquid fuel
  3. Secondary fuel
  4. None of this

33. Pump is a machine which is used to do

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

34. Reducing pressure angle on gears results in

  1. Weaker teeth
  2. Stronger teeth
  3. High velocity ratio
  4. High efficiency

35. Saturation temperature of steam increase

  1. With decrease in pressure
  2. with increase in pressure
  3. is unaffected by pressure
  4. none of the above

36. Specific heat is defined as the amount of heat required

  1. To raise unit of temp of a substance
  2. To raise unit mass of substance through unit degree of temperature
  3. To raise unit mass of substance through 100 C
  4. None of this

37. The ability of a material to resist fracture due to high impact loads is called

  1. strength
  2. stiffness
  3. toughness
  4. brittleness

38. The air standard cycle on which the petrol engine work is

  1. Otto cycle
  2. Carrot cycle
  3. Joule cycle
  4. Dual cycle

39. The cam shaft speed of four stroke engine is

  1. Double than crank shaft speed
  2. Four times of crank shaft speed
  3. Equal to crank shaft speed
  4. Half of crank shaft speed

40. The clearance volume in a compressor is provided

  1. To increase volumetric efficiency
  2. to reduce the work input
  3. So that piston does no strike the cylinder head
  4. To accommodate valves in the cylinder
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MCQ Multiple Choice Questions and Answers on Mechanical Engineering

Mechanical Engineering Question and Answer