Electrical Machines
A 3 - Φ slip ring motor has

  wound rotor.
  short-circuited rotor.
  any of the above.
  double cage rotor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 3 - Φ induction motor

  power factor at starting in the same as that while running.
  power factor at starting is high as compared to that while running.
  none of them.
  power factor at starting is low as compared to that while running.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

 not change and remain at 220 V
 increase to a value greater than 1.25 times 220 V
 increase to value lying between 220 V and 1.25 times 220 V
 increase to 1.25 times 220 V

ANSWER DOWNLOAD EXAMIANS APP