Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged One fourth Half Double Unchanged One fourth Half Double ANSWER DOWNLOAD EXAMIANS APP
Alternators Turbo alternators have rotors of _______ Small diameter and long axial length Same diameter and axial length Large diameter and small axial length Large diameter and long axial length Small diameter and long axial length Same diameter and axial length Large diameter and small axial length Large diameter and long axial length ANSWER DOWNLOAD EXAMIANS APP
Alternators The disadvantaged of a short pitched coil is that _______ Voltage round the coil is reduced None of the listed here Waveform becomes non-sinusoidal Harmonics are introduced Voltage round the coil is reduced None of the listed here Waveform becomes non-sinusoidal Harmonics are introduced ANSWER DOWNLOAD EXAMIANS APP
Alternators In air-crafts, alternators have operating frequency of 60 Hz 400 Hz 500 Hz 50 Hz 60 Hz 400 Hz 500 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators The efficiency of the turbo-alternator _____ with increases in speed. Remians unchanged Increases Decreases None of the listed here Remians unchanged Increases Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The rotor of a turbo alternator is made cylindrical in order to reduce_______ Windage loss None of the listed here Eddy current loss Hysteresis loss Windage loss None of the listed here Eddy current loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS