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A small domestic water pump motor is usually of the

  • A.universal type
  • B.reluctance synchronous type
  • C.capacitor start type
  • D.shaded pole type

Answer: C

Correct answer: capacitor start type

A pump may have to start against a head, so a good starting torque is needed. Once running the load is steady and modest, so the starting capacitor can be switched out and the machine runs on its main winding alone - exactly the duty the capacitor start type is designed for.

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