Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Separately excited. Compound. Shunt. Series. Separately excited. Compound. Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs increase. either of these. decrease. None of these increase. either of these. decrease. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant voltage control constant power control constant torque control constant current control constant voltage control constant power control constant torque control constant current control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a induction motor. switched reluctance motor. DC motor. variable reluctance motor. induction motor. switched reluctance motor. DC motor. variable reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through commutator. slip rings. solid connection. none of above. commutator. slip rings. solid connection. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are high initial cost. poor overall efficiency. high maintenance cost. all of above. high initial cost. poor overall efficiency. high maintenance cost. all of above. ANSWER DOWNLOAD EXAMIANS APP
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