Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. always closed. always opened. semi closed or semi opened. none. always closed. always opened. semi closed or semi opened. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. have an equal number of electrons and protons. Series shunt. Differentical compound. Cummulative compound. have an equal number of electrons and protons. Series shunt. Differentical compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be six. four. two. three. six. four. two. three. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening method is also called as-----------? constant power control constant torque control constant voltage control constant current control constant power control constant torque control constant voltage control constant current control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are poor overall efficiency. high maintenance cost. all of above. high initial cost. poor overall efficiency. high maintenance cost. all of above. high initial cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? constant loss variable loss None of these both A and B constant loss variable loss None of these both A and B ANSWER DOWNLOAD EXAMIANS APP
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