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Electrical Machines

Electrical Machines
In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called

  cogging.
  skewing.
  slip.
  crawling.

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Electrical Machines
DC machine windings are

 short pitched
 full pitched
 either of these
None of these

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Electrical Machines
Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

 through inductive coupling
 in series
 in parallel
 either of these depending on the design of the motor

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Electrical Machines
Which of the following statement is true for an AC synchronous motor?

 It is a step angled motor.
 It is a high reluctance motor.
 It is a variable speed motor.
  It is a constant speed motor.

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Electrical Machines
The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is

  slip X 59 / 3.
  slip X 50 / 3.
  slip X 69 / 3.
 1.

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Electrical Machines
Which of the following DC generators has rising V-I characteristics?

  Series.
  None of them.
  Compound.
  Shunt.

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MORE MCQ ON Electrical Machines

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