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Electric Motors MCQ Questions with Answers PDF Download eBook

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MCQs on Electric Motors PDF Download eBook

MCQ: To make the coil keep rotating, the current is reversed after every half turn by a device called

  1. brush
  2. commutator
  3. mutator
  4. carbon spring

B

MCQ: A magnet may attract or repel by

  1. another magnet
  2. electric current
  3. resistor
  4. dynamo

A

MCQ: Electric motor changes electrical energy into

  1. potential energy
  2. thermal energy
  3. heat energy
  4. kinetic energy

D

MCQ: Many machines we use, are powered by

  1. thermal energy
  2. sound energy
  3. electric motors
  4. dynamos

C

MCQ: The magnetic field of the coil and the permanent magnet

  1. attract each other
  2. repel each other
  3. combine with each other
  4. stay with each other

B