ELECTRICAL MACHINES QUIZ

 increase

 be unpredictable.

 decrease.

 remain the same.

 burn.

 run at very high speed.

 start haunting.

 run at very low speed.

 transformer insulating oil.

  winding conductors and steel structures of transformer.

 steel core.

 paper insulation in transformers.

  triangular space distribution and rotates at the speed of armature.

  triangular space distribution and is stationary in space.

 stepped distribution and rotates at the speed of armature.

  trapezoidal space distribution and is stationary in space.

 0

 finite value

 1

 infinite value

 both motors has same stability

 salient pole motor

None of these

 cylindrical motor

  ventilate the armature.

  provide return path for the flux.

  protect the whole machine.

  hold armature stamping in position.

 Commutating pole winding.

 Compensating winding.

 Both Compensating and Commutating pole winding.

 Auxiliary winding.

 improve but terminal voltage will fall.

  improve and terminal voltage will rise .

  worsen and terminal voltage will fall

  worsen and terminal voltage will rise.

 AC single phase motor.

 DC Shunt Motor

 Induction motor.

 Synchronous motor.