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Electrical Machines

Electrical Machines
The 3 - Φ induction motor with rotor circuit open will

  make noise.
  run normally.
  not run.
  get over heated.

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Electrical Machines
In dc machines, the space waveform of the air-gap flux distribution affects

 neither the voltage nor the torque
 voltage but not the torque
 both the torque and voltage
 torque but not the voltage

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Electrical Machines
In applied voltage is reduced in a dc shunt motor

 None of these.
 Full load torque.
  Full load current.
 Full load speed.

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Electrical Machines
A motor operates in stable region at which of the following slip?

 unity slip
 low slip region
 high slip region
 both 1 and 2

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Electrical Machines
In case of a compensated DC series motor, the compensating winding is provided

 In parallel with the armature winding.
 As a separate unit.
 In parallel with the field winding.
  In series with the armature winding.

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Electrical Machines
Star - delta method of starting of motor is not possible in case of

  high torque motor.
  low horse power motor.
  single phase induction motor.
  high speed motor.

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MORE MCQ ON Electrical Machines

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