Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 230 V 115 V 200 V 460 V 230 V 115 V 200 V 460 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will decrease increase not changed None of these decrease increase not changed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1/S 1-S 1/(1-S) S 1/S 1-S 1/(1-S) S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called damping winding. common winding. tertiary winding. compensating winding. damping winding. common winding. tertiary winding. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field system of an alternator is usually excited 3 - Φ, 50 Hz and 400 V. 250 / 250 V DC. 110 / 220 V AC. 230 V AC. 3 - Φ, 50 Hz and 400 V. 250 / 250 V DC. 110 / 220 V AC. 230 V AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for swing action which motor is preferred? Reluctance motor. Capacitor type induction motors. AC slip ring IM. DC series motor. Reluctance motor. Capacitor type induction motors. AC slip ring IM. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
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