Electrical Machines The mmf produced by rotor currents of a 3 - Φ induction motor rotates at the speed of rotor in the air gap. rotates at slip speed with respect to stator mmf. is at standstill with respect to stator mmf. rotates at synchronous speed with respect to rotor. rotates at the speed of rotor in the air gap. rotates at slip speed with respect to stator mmf. is at standstill with respect to stator mmf. rotates at synchronous speed with respect to rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Centrifugal switch is absent in which of the single phase induction motor? None of these Split phase motor. PSC (permanent split capacitor) motor. Shaded pole motor. None of these Split phase motor. PSC (permanent split capacitor) motor. Shaded pole motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. any of above method. rheostatic control. none of above. Ward Leonard control. any of above method. rheostatic control. none of above. Ward Leonard control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Commutator. Radiator. Conservator tank. Tap changer. Commutator. Radiator. Conservator tank. Tap changer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 1 V 2 V 0 V 4 V 1 V 2 V 0 V 4 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies inversely as 1/Xs directly as synchronous reactances Xs directly as Xs2 All of these inversely as 1/Xs directly as synchronous reactances Xs directly as Xs2 All of these ANSWER DOWNLOAD EXAMIANS APP
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