Electrical Machines Field weakening control method is used for the _________ ? above rated speed below rated speed None of these both A and B above rated speed below rated speed None of these both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the rotating losses of machine? Eddy current losses Friction and windage losses All of the them Hysteresis losses Eddy current losses Friction and windage losses All of the them Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will start haunting. run at very low speed. run at very high speed. burn. start haunting. run at very low speed. run at very high speed. burn. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Compound. Separately excited. Shunt. Series. Compound. Separately excited. Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? either of these squirrel cage induction motor slip ring induction motor None of these either of these squirrel cage induction motor slip ring induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer is always lagging. is always leading. depends on the power factor of the load. is always unity. is always lagging. is always leading. depends on the power factor of the load. is always unity. ANSWER DOWNLOAD EXAMIANS APP
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