DC Motors Motor starter are essential for Avoiding excessive starting current Starting the motor Preventing fuse blowing Accelerating the motor Avoiding excessive starting current Starting the motor Preventing fuse blowing Accelerating the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Runs as a generator None of these Also runs as a motor comes to stop after sometime Does not run as a generator Runs as a generator None of these Also runs as a motor comes to stop after sometime Does not run as a generator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Series Shunt Differentially compounded Cumulatively compounded Series Shunt Differentially compounded Cumulatively compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is that which Can be started easily without load Has almost constant speed Has a poor torque Has its field winding consisting of thick wire and less turns Can be started easily without load Has almost constant speed Has a poor torque Has its field winding consisting of thick wire and less turns ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Shunt motor only Compound motor only Series motor only Both shunt and compound motor Shunt motor only Compound motor only Series motor only Both shunt and compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Worn bearings Open armature coil Bent shaft Too much brush tension Worn bearings Open armature coil Bent shaft Too much brush tension ANSWER DOWNLOAD EXAMIANS APP
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