Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 72 74 37 36 72 74 37 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When only armature terminals are reversed. only field terminals are changed. none of above. either field terminals are reversed or armature terminals are reversed. only armature terminals are reversed. only field terminals are changed. none of above. either field terminals are reversed or armature terminals are reversed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by compensating winding and commutating poles. increasing field excitation. fixing the brush axis inline with the pole axis. shifting the brush axis from GNA to MNA. compensating winding and commutating poles. increasing field excitation. fixing the brush axis inline with the pole axis. shifting the brush axis from GNA to MNA. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Capacitor start capacitor run IM. Split phase IM. Synchronous motor. Capacitor start IM. Capacitor start capacitor run IM. Split phase IM. Synchronous motor. Capacitor start IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called common winding. damping winding. tertiary winding. compensating winding. common winding. damping winding. tertiary winding. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? All of these In order to not to get saturated. In order to get more flux. In order to get saturated. All of these In order to not to get saturated. In order to get more flux. In order to get saturated. ANSWER DOWNLOAD EXAMIANS APP
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