Synchronous Motors Power factor of a synchronous motor is unity when The armature current is maximum None of the listed here The armature current is minimum The armature current is zero The armature current is maximum None of the listed here The armature current is minimum The armature current is zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always Zero 1% Positive 0.5% Zero 1% Positive 0.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Is at standstill None of the listed here Approches half synchronous speed Approches synchronous speed Is at standstill None of the listed here Approches half synchronous speed Approches synchronous speed 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 None of these pull-up torque pull-out torque pull-in torque None of these pull-up torque pull-out torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 90° 60° 45° 120° 90° 60° 45° 120° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor None of the listed here Always remains constant Decreases as the load decreases Increases as the load increases None of the listed here Always remains constant Decreases as the load decreases Increases as the load increases ANSWER DOWNLOAD EXAMIANS APP
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