Electrical Machines
Ward-Leonard control is basically a ___________ control method.

 Field diverter control.
 Field control.
 Armature resistance control.
 Armature voltage control.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The armature mmf of a DC machine has

  trapezoidal space distribution and is stationary in space.
  triangular space distribution and is stationary in space.
 stepped distribution and rotates at the speed of armature.
  triangular space distribution and rotates at the speed of armature.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The compensating winding in a DC machine

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

ANSWER DOWNLOAD EXAMIANS APP