Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Approches half synchronous speed None of the listed here Approches synchronous speed Is at standstill Approches half synchronous speed None of the listed here Approches synchronous speed Is at standstill ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry Alternating current No current All of the listed here Direct current Alternating current No current All of the listed here Direct current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing None of the listed here Damper winding on stator as well as rotor poles Damper winding on stator Damper winding on rotor poles None of the listed here Damper winding on stator as well as rotor poles Damper winding on stator Damper winding on rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Current to field winding None of the listed here Supply phase sequence Polarity of rotor poles Current to field winding None of the listed here Supply phase sequence Polarity of rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ High speed, high output High speed, low output Low speed, high output None of the listed here High speed, high output High speed, low output Low speed, high output None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 0.5 1.25 to 3.5 6 to 9 5 to 10 0.5 1.25 to 3.5 6 to 9 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS