Mechanical Engineering MCQ Questions and Answers Quiz

61. The unit Nm/s is called

  1. Joule(J)
  2. Calorie(C)
  3. Watt(W)
  4. None of this

62. Water gas is

  1. Mixture of hydrogen and carbon monoxide
  2. It mainly consist of CH4
  3. Used in heating ovens
  4. None from above

63. What is the unit of luminous intensity is SI unit system?

  1. Angstrom
  2. Carat
  3. Mol
  4. Candela

64. When driving and driven shafts are at comparatively short distance apart & higher efficiency required, the type of drive suitable is :

  1. Gear drive
  2. Belt drive
  3. friction drive
  4. chain drive

65. When the axes of two shafts are parallel, use

  1. Crossed helical gears
  2. Bevel
  3. Worm gears
  4. Spur or helical gears

66. When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as

  1. internally fired boiler
  2. natural circulation boiler
  3. externally fired boiler
  4. forced circulation boiler

67. When the driving and driven shafts are at comparatively larger distance apart, the type Of drive suitably used is

  1. Gear Drive
  2. Belt Drive
  3. Friction Drive
  4. Chain Drive

68. Which application is not perform by Vernier caliper?

  1. Measuring diameter
  2. Measuring height
  3. Measuring depth
  4. None of above

69. Which are of the following is not a rotary pump?

  1. Gear pump
  2. Vane pump
  3. Screw pump
  4. Axial pump

70. Which of the following energy is converted into electricity in a Hydo power plant

  1. Nuclear energy
  2. Potential Energy of water
  3. Thermal Energy
  4. all of the above
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