Synchronous Motors Synchronous motors are generally used in application requiring _______ Variable speed Sudden application of heavy loads Infrequent starting Frequent stopping Variable speed Sudden application of heavy loads Infrequent starting Frequent stopping ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Is decreased too much Is increased too much Remains unchanged Become zero Is decreased too much Is increased too much Remains unchanged Become zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The shaft of synchronous motor is made of Stainless steel Mild steel Alcino Chrome steel Stainless steel Mild steel Alcino Chrome steel ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ None of the listed here 30 36 16 None of the listed here 30 36 16 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 0.5 1.25 to 3.5 6 to 9 5 to 10 0.5 1.25 to 3.5 6 to 9 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing the supply voltage changing frequency changing the load using brakes changing the supply voltage changing frequency changing the load using brakes ANSWER DOWNLOAD EXAMIANS APP
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