Electrical Machines DC generator will not build up voltage if field resistance is more than critical resistance. if it has lost residual magnetism. due to wrong direction of rotation. any one of above. if field resistance is more than critical resistance. if it has lost residual magnetism. due to wrong direction of rotation. any one of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is infinite value any of the above maximum zero infinite value any of the above maximum zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which slots are used in the rotor of an induction motor? None of above. Semi closed slots. Closed slots. Open slots. None of above. Semi closed slots. Closed slots. Open slots. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC generators has rising V-I characteristics? Series. Compound. None of them. Shunt. Series. Compound. None of them. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC Series motor, speed lower than the rated speed can be obtained by Any of the above. Connecting an additional resistance in stator circuit. Connecting an additional resistance in the armature circuit. Connecting an additional resistance in the field circuit. Any of the above. Connecting an additional resistance in stator circuit. Connecting an additional resistance in the armature circuit. Connecting an additional resistance in the field circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is none of these. higher than power transformer. lesser than power transformer. equal as power transformer. none of these. higher than power transformer. lesser than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
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