Electrical Machines
A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

 24.11 kW.
 26.21 kW.
 23.06 kW.
 25 kW.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

  rotate in the same direction as before maintenance.
  not start at all.
  get heated and damaged.
  rotate in direction opposite to that before maintenance.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electrical Machines