Synchronous Motors The back e.m.f. of a synchronous motor depends on load speed All of these load angle load speed All of these load angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing frequency changing the supply voltage using brakes changing the load changing frequency changing the supply voltage using brakes changing the load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Decreases as the load decreases None of the listed here Increases as the load increases Always remains constant Decreases as the load decreases None of the listed here Increases as the load increases Always remains constant ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one minute None of these one hour one second one minute None of these one hour one second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Speed All of the listed here Flux density Horse power rating Speed All of the listed here Flux density Horse power rating ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Dc source Motor input Supply lines Armature input Dc source Motor input Supply lines Armature input ANSWER DOWNLOAD EXAMIANS APP
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