Electrical Machines
High starting torque and low starting current is the advantage of

  squirrel cage induction motor.
  stepper motor.
  slip ring induction motor.
  hysteresis motor.

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Electrical Machines
Ward-Leonard system for controlling the speed of a DC motor is used where

 Very fine speed control over the whole range from zero to normal speed is required.
 All of above.
 The accuracy in speed control is required.
 The speed in both the direction is required.

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Electrical Machines
The compensating winding in a DC machine

 is located in armature slots for compensation of the armature reaction.
  is located on pole shoes to avoid the sparking at the brushes.
 is located on commutating poles for improving commutation.
  is located on pole shoes for avoiding the flashover at the commutator.

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