Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is zero. lagging. unity. leading. zero. lagging. unity. leading. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means neutralization of residual magnetism. increasing flux density by providing extra ampere-turns in field. creation of residual magnetism by a DC source. None of these neutralization of residual magnetism. increasing flux density by providing extra ampere-turns in field. creation of residual magnetism by a DC source. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a conduction machine. none of above are correct. convection machine. both are correct. conduction machine. none of above are correct. convection machine. both are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? hysteresis loss armature copper loss shunt field copper loss eddy current loss hysteresis loss armature copper loss shunt field copper loss eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting in a synchronous motor takes place when power factor is unity. motor is under loaded. when supply voltage fluctuates. when load varies. when power factor is unity. motor is under loaded. when supply voltage fluctuates. when load varies. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the eddy current loss. both of the above. weight of the stator. hysteresis loss. eddy current loss. both of the above. weight of the stator. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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