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Electrical Machines

Electrical Machines
At the instant of starting, the per unit slip of 3 - Φ induction motor is

  0.05.
  0.1.
  0.5.
  1.0.

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Electrical Machines
Exciting current of an induction motor is

  none of these.
  equal as power transformer.
  lesser than power transformer.
  higher than power transformer.

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Electrical Machines
Generator works on the principle of production

 static induced emf.
 both A and B.
None of these
 dynamically induced emf.

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Electrical Machines
Tap changer is generally provided in

 earthing transformer.
 voltage transformer.
  power transformer.
 current transformer.

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Electrical Machines
A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively?

 16KVA
 0KVA
 4KVA
 20KVA

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Electrical Machines
For a standard frequency the machine operates at a particular speed known as

 normal speed.
 any of the above.
 slip speed.
 synchronous speed.

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MORE MCQ ON Electrical Machines

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