Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Remains constant at all loads Varies with speed Varies with power factor Varies with the load Remains constant at all loads Varies with speed Varies with power factor Varies with the load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ None of the listed here Normally excited Over excited Under excited None of the listed here Normally excited Over excited Under excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A capacitor None of the listed here An inductor A resistor A capacitor None of the listed here An inductor A resistor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Change of D.C. excitation of a synchronous motor changes Applied voltage of the motor Power factor of power drawn by the motor Any of the above Motor speed Applied voltage of the motor Power factor of power drawn by the motor Any of the above Motor speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ None of the listed here High speed, low output Low speed, high output High speed, high output None of the listed here High speed, low output Low speed, high output High speed, high output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable load Windage friction Variable supply frequency Variable frequency Variable load Windage friction Variable supply frequency Variable frequency ANSWER DOWNLOAD EXAMIANS APP
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