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Electrical Machines

Electrical Machines
Slip exists in

  in both machines.
  induction motor.
  none of above.
  synchronous motor.

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Electrical Machines
Which 1 - Φ motor does operate at high power factor?

  Split phase.
  Capacitor start.
  Capacitor run.
  Shaded pole.

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Electrical Machines
Hunting in a synchronous cannot be due to

  windage friction.
  variable supply voltage.
  variable load.
  variable frequency.

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

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

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Electrical Machines
When maximum starting torque is obtained, rotor power is

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Electrical Machines
Number of tappings for each equalizer ring is equal to

  number of pole pairs.
  number of parallel paths.
  number of commutator segments.
  number of poles.

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MORE MCQ ON Electrical Machines

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