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1248

Q:

Which of the following rotor will have the highest noise?

  • 1
    Shaded pole motor
  • 2
    Universal Motor
  • 3
    capacitor motor
  • 4
    All of the above will be equal
  • Show Answer
  • Workspace

Answer : 3. "capacitor motor"
Explanation :

Cylindrical rotors are used in high-speed alternators having speed between 1500 rpm to 3000 rpm and salient pole rotors are used in low-speed devices, from 100 rpm to 1500 rpm. Cylindrical type rotors are used in turbo-alternators and these are made up of solid steel forging to get high mechanical stress.

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