DC Generator MCQ Questions and Answers Quiz

71. The essential condition for parallel operation of two D.C. generators is that they have

  1. same kW rating
  2. the same operation r.p.m.
  3. the same drooping voltage charac-teristics
  4. same percentage regulation

72. Which of the following generating machine will offer constant voltage on all loads ?

  1. Self-excited generator
  2. Separately excited generator
  3. Level compounded generator .
  4. All of the above

73. An exciter for a turbo generator is a

  1. separately excited generator
  2. shunt generator
  3. series generator
  4. compound generator

74. Following energized winding of a D.C. machine should not be opened as it wouldproduce high inductive voltage which may be dangerous to personnel and may cause itsown insulation failure.

  1. Series field
  2. Compensating field
  3. Inter pole field
  4. Shunt field

75. Following D.C. generator will be in a position to build up without any residualmagnetism in the poles

  1. series generator
  2. shunt generator
  3. compound generator
  4. self-excited generator

76. D.C. generator generally preferred for charging automobile batteries is

  1. series generator
  2. shunt generator
  3. long shunt compound generator
  4. any ofthe above

77. Which of the following generator will have negligible terminal voltage while running onno-load ?

  1. Series generator
  2. Shunt generator
  3. Compound generator
  4. Separately excited generator

78. Which of the following D.C. generators will be in a position to build up without anyresidual magnetism in the poles ?

  1. Series generator
  2. Shunt generator
  3. Compound generator
  4. None of the above

79. Which generator would you prefer for feeding long D.C. transmission lines ?

  1. Series generator
  2. Shunt generator
  3. Over compound generator
  4. Flat compound generator

80. In D.C. generators, the cause of rapid brush wear may be

  1. severe sparking
  2. rough commutator surface
  3. imperfect contact
  4. any of the above
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MCQ Multiple Choice Questions and Answers on DC Generator

DC Generator Question and Answer