Electrical Machines In a synchronous motor, damper windings are provided on rotor shaft. pole faces. None of these stator frame. rotor shaft. pole faces. None of these stator frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.9 lag 0.2 lead 0.2 lag unity 0.9 lag 0.2 lead 0.2 lag unity ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will continue to work as synchronous motor with same direction of rotation. continue to work as alternator but the direction of rotation will reverse. come to stand still. start working as induction motor. continue to work as synchronous motor with same direction of rotation. continue to work as alternator but the direction of rotation will reverse. come to stand still. start working as induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 1440 to 2880. 375 to 500. 500 to 720. 720 to 920. 1440 to 2880. 375 to 500. 500 to 720. 720 to 920. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic circuit of a dc shunt generator with negligible armature resistance and brush contact voltage drop remains unsaturated when it delivers full-load current at rated terminal voltage. The brushes are kept in the interpolar axis and speed is maintained constant. When the load is switched off, the terminal voltage would remain the same become zero increase decrease remain the same become zero increase decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called common winding. compensating winding. tertiary winding. damping winding. common winding. compensating winding. tertiary winding. damping winding. ANSWER DOWNLOAD EXAMIANS APP
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