Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under loaded Over loaded Under excited Over excited Under loaded Over loaded Under excited Over excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The shaft of synchronous motor is made of Mild steel Stainless steel Alcino Chrome steel Mild steel Stainless steel Alcino Chrome steel ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Approches half synchronous speed Is at standstill Approches synchronous speed None of the listed here Approches half synchronous speed Is at standstill 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 None of these pull-out torque pull-in torque pull-up torque None of these pull-out torque pull-in torque pull-up torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its speed is independent of supply frequency None of these its power factor may be varied at will its speed may be controlled more easily its speed is independent of supply frequency None of these its power factor may be varied at will its speed may be controlled more easily ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will refused ro start Will fail to pull into step Will overheat in spots Will not come upto speed Will refused ro start Will fail to pull into step Will overheat in spots Will not come upto speed ANSWER DOWNLOAD EXAMIANS APP
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