Electrical Machines The brushes of a DC machine should be placed on the armature midway between poles. commutator in the polar axis. commutator in the inter polar axis. armature in the polar axis. armature midway between poles. commutator in the polar axis. commutator in the inter polar axis. armature in the polar axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for swing action which motor is preferred? Capacitor type induction motors. Reluctance motor. AC slip ring IM. DC series motor. Capacitor type induction motors. Reluctance motor. AC slip ring IM. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor used for shears and punches is Series motor. Shunt motor. Cummulative compound motor. Differential compound motor. Series motor. Shunt motor. Cummulative compound motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor Oscillates around the rated speed. Decreases. Remains unchanged. Increases. Oscillates around the rated speed. Decreases. Remains unchanged. Increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to vary the armature resistance. none of above. limit the armature current. control field current. vary the armature resistance. none of above. limit the armature current. control field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Commutator. Dummy coils. Equalizer rings. Eye bolt. Commutator. Dummy coils. Equalizer rings. Eye bolt. ANSWER DOWNLOAD EXAMIANS APP
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