Alternators If the excitation of an alternator operating in parallel with other alternators is decreased, its ______ None of the listed here Output kW will change Pf becomes more leading Pf becomes more lagging None of the listed here Output kW will change Pf becomes more leading Pf becomes more lagging ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 11 kV 400 V 230 V 132 kV 11 kV 400 V 230 V 132 kV ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed at which a 6-pole alternator should be driven to generate 50 cycles per second is _______ 1500 rpm None of the listed here 500 rpm 1000 rpm 1500 rpm None of the listed here 500 rpm 1000 rpm 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. Decreasing the field excitation Increasing the speed of prime movers Decreasing the speed of prime movers Increasing the field excitation Decreasing the field excitation Increasing the speed of prime movers Decreasing the speed of prime movers Increasing the field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the frequency of voltage generated depend on Both rotative speed and number of poles Rotative speed only None of the listed here Number of poles only Both rotative speed and number of poles Rotative speed only None of the listed here Number of poles only ANSWER DOWNLOAD EXAMIANS APP
Alternators Regulation of alternator supplying reaistive or inductive load is Either positive or negative Always negative Always positive None of the listed here Either positive or negative Always negative Always positive None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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