Electrical Machines
In DC generator, brushes are always placed along

 armature axis.
 geometrical neutral axis.
 load axis.
  magnetic neutral axis.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Cogging of induction motor occurs at

 low voltage and when stator and rotor poles are not equal.
 high voltage and when stator and rotor poles are equal.
 high voltage and when stator and rotor poles are not equal.
 low voltage and when stator and rotor poles are equal.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Slip speed is the

  sum of synchronous and rotor speeds.
  difference of synchronous speed and actual rotor speed.
  difference of actual rotor speed and synchronous speed.
  half of the sum of synchronous and rotor speeds.

ANSWER DOWNLOAD EXAMIANS APP