Synchronous Motors The back e.m.f. of a synchronous motor depends on load All of these load angle speed load All of these load angle speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing frequency using brakes changing the load changing the supply voltage changing frequency using brakes changing the load changing the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 30 16 None of the listed here 36 30 16 None of the listed here 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. Decreases None of the listed here Remains unchanged Increases Decreases None of the listed here Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.5 leading 0.8 leading 0.8 lagging Unity 0.5 leading 0.8 leading 0.8 lagging Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A capacitor An inductor None of the listed here A resistor A capacitor An inductor None of the listed here A resistor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS