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ELECTRICAL MACHINES

Electrical Machines
The slip of an induction motor normally does not depend on

  rotor speed.
  synchronous speed.
  shaft torque.
  core loss component.

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Electrical Machines
Commonly used starters of cage motor is

  both A and B.
  star delta.
  DOL.
None of these

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Electrical Machines
A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf?

 10 Hz.
  2 Hz.
 50 Hz.
  3 Hz.

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Electrical Machines
Which slots are used in the rotor of an induction motor?

  Open slots.
  Semi closed slots.
  None of above.
  Closed slots.

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Electrical Machines
In double cage induction motor, the inner cage offers

  low resistance and low reactance.
  low resistance and high reactance.
  high resistance and high reactance.
  high resistance and low reactance.

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