Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A reciprocating air compressor A centrifugal pump Any of the listed here A centrifugal blower A reciprocating air compressor A centrifugal pump Any of the listed here A centrifugal blower ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at zero power factor leading 0.707 power factor leading 0.707 power factor lagging unity power factor zero power factor leading 0.707 power factor leading 0.707 power factor lagging unity power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has Lower stability limit Good voltage regulation High stability limit Good speed regulation Lower stability limit Good voltage regulation High stability limit Good speed regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be lagging leading unity zero lagging leading unity zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Increase Remain unchanged Decrease None of the listed here Increase Remain unchanged Decrease None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is less twice equal more less twice equal more ANSWER DOWNLOAD EXAMIANS APP
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