Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Mechanical load Supply frequency Field excitation None of the listed here Mechanical load Supply frequency Field excitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is supplied with unbalanced voltage None of these over-loaded under-loaded supplied with unbalanced voltage None of these over-loaded under-loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. Unity 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading 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 None of these pull-up torque pull-in torque pull-out torque None of these pull-up torque pull-in torque pull-out torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry All of the listed here No current Alternating current Direct current All of the listed here No current Alternating current Direct current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has good voltage regulation high stability limit lower stability limit good speed regulation good voltage regulation high stability limit lower stability limit good speed regulation ANSWER DOWNLOAD EXAMIANS APP
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