Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Become zero Is increased too much Is decreased too much Remains unchanged Become zero Is increased too much Is decreased too much Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always 0.5% 1% Zero Positive 0.5% 1% Zero Positive ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Remains constant at all loads Varies with the load Varies with power factor Varies with speed Remains constant at all loads Varies with the load Varies with power factor Varies with speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be None of these more than the supply voltage equal to the supply voltage less than the supply voltage None of these more than the supply voltage equal to the supply voltage less than the supply voltage 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 twice less more equal twice less more equal ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have Three slip rings One slip rings Two slip rings No slip rings Three slip rings One slip rings Two slip rings No slip rings ANSWER DOWNLOAD EXAMIANS APP
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