Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with the load Remains constant at all loads Varies with power factor Varies with speed Varies with the load Remains constant at all loads Varies with power factor Varies with speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be unity lagging leading zero unity lagging leading zero 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 When the field of a synchronous motor is under-excited, the power factor will be zero lagging leading unity zero lagging leading unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in All of the listed here Flux density Speed Horse power rating All of the listed here Flux density Speed Horse power rating ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque pull-up torque pull-out torque None of these pull-in torque pull-up torque pull-out torque None of these ANSWER DOWNLOAD EXAMIANS APP
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