Alternators The synchronous reactance of an alternator is due to ______ Armature reaction Leakage flux Dc field excitation None of the listed here Armature reaction Leakage flux Dc field excitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators If the lagging load pf of an alternator is decreased, the demagnetising effect of armature reaction _______ Remains the same Is increased None of the listed here Is decreased Remains the same Is increased None of the listed here Is decreased ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Increasing the speed of prime movers Increasing the field excitation Decreasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Increasing the field excitation Decreasing the field excitation Decreasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, for a coil having a span of 2/3 of pole pitch, the coil span factor will be 0.6 0.707 0.866 0.2 0.6 0.707 0.866 0.2 ANSWER DOWNLOAD EXAMIANS APP
Alternators Excessive windage loss and noise occur with None of the listed here Salient pole rotors Either cylindrical or salient Cylindrical rotors None of the listed here Salient pole rotors Either cylindrical or salient Cylindrical rotors ANSWER DOWNLOAD EXAMIANS APP
Alternators For the same rating, the size of low speed alternator is ______that of high speed alternator. None of the listed here About the same as Less than More than None of the listed here About the same as Less than More than ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS