Synchronous Motors Power factor of a synchronous motor is unity when The armature current is zero The armature current is maximum The armature current is minimum None of the listed here The armature current is zero The armature current is maximum The armature current is minimum None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In case one phase of a three-phase synchronous motor is short-circuited the motor will run with excessive vibrations not start run at 2/3 of synchronous speed take less than the rated load run with excessive vibrations not start run at 2/3 of synchronous speed take less than the rated load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of a synchronous motor is Salient pole type Nonsalient pole type None of the listed here Identical to that of a dc motor Salient pole type Nonsalient pole type None of the listed here Identical to that of a dc motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Increases as the load increases Decreases as the load decreases None of the listed here Always remains constant Increases as the load increases Decreases as the load decreases None of the listed here Always remains constant ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 leading 0.8 lagging Unity 0.5 leading 0.8 leading 0.8 lagging Unity 0.5 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The shaft of synchronous motor is made of Alcino Stainless steel Chrome steel Mild steel Alcino Stainless steel Chrome steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
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