Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation 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 speed at which a 6-pole alternator should be driven to generate 50 cycles per second is _______ 500 rpm None of the listed here 1000 rpm 1500 rpm 500 rpm None of the listed here 1000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators A 3 phase alternator has 3-slot per pole. The distribution factor of the winding is _______ 1 0.866 0.5 None of the listed here 1 0.866 0.5 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators In aircrafts, alternators have operating frequency of 50 Hz 800 Hz 400 Hz 60 Hz 50 Hz 800 Hz 400 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators If the excitation of an alternator operating in parallel with other alternators is decreased, its ______ Pf becomes more leading Output kW will change Pf becomes more lagging None of the listed here Pf becomes more leading Output kW will change Pf becomes more lagging None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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