Synchronous Motors The back e.m.f. of a synchronous motor depends on speed load angle All of these load speed load angle All of these load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motor always run at None of the listed here The synchronous speed More than synchronous speed Less than synchronous speed None of the listed here The synchronous speed More than synchronous speed Less than synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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 Hunting in a synchronous motor cannot be due to variable supply voltage windage friction variable load variable frequency variable supply voltage windage friction variable load variable frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor is pulled out of synchronism, the stator current _______ Remains unchanged Becomes zero Is decreased too much Is increased too much Remains unchanged Becomes zero Is decreased too much Is increased too much ANSWER DOWNLOAD EXAMIANS APP
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