Electrical Machines If the back emf in DC motor vanishes suddenly the motor will burn. run at very low speed. start haunting. run at very high speed. burn. run at very low speed. start haunting. run at very high speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound motor has only series field winding. tertiary winding. only shunt field winding. both shunt and series field winding. only series field winding. tertiary winding. only shunt field winding. both shunt and series field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of 3 - Φ IM, plugging means pulling the motor directly on line without a rotor. locking of rotor due to harmonics. starting the motor on load which is more than the rated load. interchanging two supply phases for quick stopping. pulling the motor directly on line without a rotor. locking of rotor due to harmonics. starting the motor on load which is more than the rated load. interchanging two supply phases for quick stopping. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 32. 16. 8. 4. 32. 16. 8. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are slot wedges in a DC machine made of? Mild steel. Fibre. Cast iron. Silicon steel. Mild steel. Fibre. Cast iron. Silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.8. 0.6. 0.4. 1. 0.8. 0.6. 0.4. 1. ANSWER DOWNLOAD EXAMIANS APP
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