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ELECTRICAL MACHINES

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

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

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Electrical Machines
Commonly used starters of cage motor is

  star delta.
  DOL.
  both A and B.
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?

 50 Hz.
  2 Hz.
  3 Hz.
 10 Hz.

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

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

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

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

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