Electrical Machines
In DC generator, full form of MNA is what?

 Magnetic no-load axis.
 Magnetic neutral armature co-ordinate.
  Magnetic neutral axis.
 Magnetically no-load armature co-ordinate.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In an alternator, voltage drops occurs in

  armature resistance and leakage reactance.
  armature resistance, leakage reactance and armature reaction.
  armature resistance only.
  armature resistance, leakage reactance, armature reaction and earth connection.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the frequency of input voltage of a transformer is increased keeping the magnitude of voltage unchanged, then

 both hysteresis loss(Ph) and eddy current loss(Pe) will increase
 Pe will increase but Ph will decrease
 Ph will increase but Pe will decrease
 Ph will decrease but Pe will remain same

ANSWER DOWNLOAD EXAMIANS APP