Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be equal to the supply voltage more than the supply voltage None of these less than the supply voltage equal to the supply voltage more than the supply voltage None of these less than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ Has a damper winding Has no losses Is a doubly fed machine None of the listed here Has a damper winding Has no losses Is a doubly fed machine None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Power factor corrections Variable speed loads Fluctuating loads Low torque loads Power factor corrections Variable speed loads Fluctuating loads Low torque loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque pull-up torque None of these pull-out torque pull-in torque pull-up torque None of these pull-out torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Small synchronous motors are started by _______ None of the listed here Variable frequency source Damper winding Pony motor None of the listed here Variable frequency source Damper winding Pony motor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS