Electrical Machines In DC generator, armature reaction refers to what? None of these Effect of armature flux on the main field flux. Effect of armature flux on the load. Effect of field flux on the armature flux. None of these Effect of armature flux on the main field flux. Effect of armature flux on the load. Effect of field flux on the armature flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T ∝ P. T ∝ √P. T2 ∝ P3. T is independent of P. T ∝ P. T ∝ √P. T2 ∝ P3. T is independent of P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will rotate in the same direction as before maintenance. not start at all. rotate in direction opposite to that before maintenance. get heated and damaged. rotate in the same direction as before maintenance. not start at all. rotate in direction opposite to that before maintenance. get heated and damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip? 1-S 1/S S 2-S 1-S 1/S S 2-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to reduce hunting All of these improve the power factor improve starting torque reduce hunting All of these improve the power factor improve starting torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, full form of MNA is what? Magnetic neutral axis. Magnetic no-load axis. Magnetic neutral armature co-ordinate. Magnetically no-load armature co-ordinate. Magnetic neutral axis. Magnetic no-load axis. Magnetic neutral armature co-ordinate. Magnetically no-load armature co-ordinate. ANSWER DOWNLOAD EXAMIANS APP
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