DC Generator MCQ

101. The mmf produced by interpole is proportional to

  1. field current
  2. armature current
  3. armature voltage
  4. 1/field current

Answer. b

102. A DC shunt generator is delivering 500 A at 220 V. The shunt field current is 10 A. The armature resistance is 0.01 Ω. The stray power is 5000 W. The efficiency of the generator is

  1. 91.09 %
  2. 95.82 %
  3. 95.64 %
  4. 91.82 %

Answer. c

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