ELECTRICAL MACHINES QUIZ

 high current and high voltage

 low current and high voltage

 low current and low voltage

 high current and low voltage

 lags behind applied voltage by exactly 90Â&am

 lags behind applied voltage somewhat less than 90Ã

 leads the applied voltage by exactly 90Â&

 leads the applied voltage somewhat less than 90Ã&

 starting torque equal to full-load torque.

  zero starting torque.

 low starting torque.

 high starting torque.

 constant power drive above base speed.

 constant hp drive below the base speed.

 constant torque drive above the base speed.

 constant torque drive below the base speed.

  Burn.

 Not run.

 Run at normal speed.

 Run at lower speed.

  Field excitaion.

  Supply voltage.

  Armature voltage.

  Armature current.

 Induction motor.

 DC Shunt Motor

 Synchronous motor.

 AC single phase motor.

  any one or more of the above methods.

  inter poles.

  high resistance carbon brushes.

 compensating winding.

 (E2 - V2) / E2

 (V2 - E2) / E2

 (E2 - V2) / V2

 (V2 - E2) / V2

  both (B) and (C).

 to counteract demagnetizing effect of armature mmf in commutating zone.

 to counteract the reactance voltage and the cross-magnetizi

  to make commutation spark less.