Electrical Machines
Which of the following motor is expensive for same Kw output rates?

 Synchronous motor.
 Induction motor.
 DC Shunt Motor
 AC single phase motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The residual magnetism of a self-excited dc generator is lost. To build up its emf again

 field winding must be excited by low voltage dc supply
 the field winding connection must be reversed
 the armature connection must be reversed
 the field winding must be replaced

ANSWER DOWNLOAD EXAMIANS APP