Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 4 8 2 12 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Alternators Three phase alternators are invariably star commected because Less turns of wire are required Small conductors can be used Magnetic losses are the minimum Higher terminal voltage is obtained Less turns of wire are required Small conductors can be used Magnetic losses are the minimum Higher terminal voltage is obtained ANSWER DOWNLOAD EXAMIANS APP
Alternators The disadvantaged of a short pitched coil is that _______ Waveform becomes non-sinusoidal None of the listed here Voltage round the coil is reduced Harmonics are introduced Waveform becomes non-sinusoidal None of the listed here Voltage round the coil is reduced Harmonics are introduced ANSWER DOWNLOAD EXAMIANS APP
Alternators The number of cycles generated in a 6-pole alternators in one revolution is _______ 50 6 None of the listed here 3 50 6 None of the listed here 3 ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the effect of armature reaction is minimum at power factor of ______ 0.866 leading Unity 0.866 lagging 0.5 lagging 0.866 leading Unity 0.866 lagging 0.5 lagging ANSWER DOWNLOAD EXAMIANS APP
Alternators In a large generator, dampers Reduce frequency fluctuations Increase stability None of the listed here Reduce voltage fluctuations Reduce frequency fluctuations Increase stability None of the listed here Reduce voltage fluctuations ANSWER DOWNLOAD EXAMIANS APP