Alternators If the excitation of an alternator operating in parallel with other alternators is decreased, its ______ Output kW will change None of the listed here Pf becomes more lagging Pf becomes more leading Output kW will change None of the listed here Pf becomes more lagging Pf becomes more leading ANSWER DOWNLOAD EXAMIANS APP
Alternators Alternators, now a days, are designed to have poor regulation because None of the listed here We employ automatic voltage regulators It reduces the construction cost It limits the value of short circuit current None of the listed here We employ automatic voltage regulators It reduces the construction cost It limits the value of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Alternators Low speed alternators are driven by ______ Steam engine Steam turbines None of the listed here Hydraulic turbines Steam engine Steam turbines None of the listed here Hydraulic turbines ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Reduce eddy current losses Reduce distortion of waveform Strengthen the magnetic field Cool the machine Reduce eddy current losses Reduce distortion of waveform Strengthen the magnetic field Cool the machine ANSWER DOWNLOAD EXAMIANS APP
Alternators The efficiency of the turbo-alternator _____ with increases in speed. None of the listed here Decreases Remians unchanged Increases None of the listed here Decreases Remians unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become One fourth Double Unchanged Half One fourth Double Unchanged Half ANSWER DOWNLOAD EXAMIANS APP
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