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Electrical Machines

Electrical Machines
Total core loss is also called as -------------?

 Hysteresis loss
 Eddy current loss
 Magnetic loss
 Copper loss

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Electrical Machines
Armature reaction depends on which of the following?

 both 1 and 2
 power factor of load
None of these
 magnitude of load current

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Electrical Machines
A 3 - φ induction motor can also be referred to as a

  shunt motor.
  asynchronous motor.
  transformer.
  repulsion motor.

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Electrical Machines
In DC machine torque depends on which of the following?

 speed
 flux (φ)
 both A and B
 armature current (I)

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Electrical Machines
When an electric train is moving down a hill, the DC motor will operate as

  DC series generator.
 DC shunt motor.
  DC series motor.
 DC shunt generator.

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Electrical Machines
What is the phase difference between two windings of A.C servomotor ?

 60°.
 120°.
 90°.
 30°.

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MORE MCQ ON Electrical Machines

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