Electrical Machines
When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop

  synchronous motor torque.
  DC motor torque.
  induction generator torque.
  induction motor torque.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Skewing of the rotor in a 3 - Φ squirrel cage induction motor reduces

  noise and pullout torque, but increase parasitic and starting torque.
  noise and parasitic torque, but increase starting and pull-out torque.
  noise, parasitic torque, starting torque and pull out torque.
  noise, parasitic and starting torque, but increase pull out torque.

ANSWER DOWNLOAD EXAMIANS APP