Electrical Machines
The power factor of squirrel cage induction motor is

 both A and B
 low at heavy loads only
 low at rated load only
 low at light loads only

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In case of 3 - Φ IM, plugging means

  interchanging two supply phases for quick stopping.
  pulling the motor directly on line without a rotor.
  locking of rotor due to harmonics.
  starting the motor on load which is more than the rated load.

ANSWER DOWNLOAD EXAMIANS APP