Alternators The synchronous reactance of an alternator is due to ______ Leakage flux None of the listed here Dc field excitation Armature reaction Leakage flux None of the listed here Dc field excitation Armature reaction ANSWER DOWNLOAD EXAMIANS APP
Alternators In air-crafts, alternators have operating frequency of 400 Hz 60 Hz 500 Hz 50 Hz 400 Hz 60 Hz 500 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. Smaller than Greater than The same as None of the listed here Smaller than Greater than The same as None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Cool the machine 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 ANSWER DOWNLOAD EXAMIANS APP
Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 8 4 2 12 8 4 2 12 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 Unchanged Half Double One fourth Unchanged Half Double ANSWER DOWNLOAD EXAMIANS APP
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