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Electrical Machines

Electrical Machines
Stepper motor is used in

 traction
All of these
 computer printers
 food processing

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Electrical Machines
In synchronous motor the torque is proportional to

 Power P
 P²
 1/P
 1/P²

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Electrical Machines
Exciting current of an induction motor is

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

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Electrical Machines
To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be

 36°
 30°
 72°
 18°

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Electrical Machines
The speed of stator rotating magnetic field (RMF) with respect to rotor is

 Nr
 Zero
 Ns
 S.Ns

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Electrical Machines
In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same?

 0
 1
 any of the above
 0.5

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MORE MCQ ON Electrical Machines

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