Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing frequency changing the load changing the supply voltage using brakes changing frequency changing the load changing the supply voltage using brakes ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about None of these one second one minute one hour None of these one second one minute one hour ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Bearing friction loss Windage loss Core loss Copper loss Bearing friction loss Windage loss Core loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be lagging unity leading zero lagging unity leading zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An under excited synchronous motor behaves as_______ An inductor A capacitor A resistor None of the listed here An inductor A capacitor A resistor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving Any of the listed here A reciprocating air compressor A centrifugal pump A centrifugal blower Any of the listed here A reciprocating air compressor A centrifugal pump A centrifugal blower ANSWER DOWNLOAD EXAMIANS APP
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