Alternators Low speed alternators are driven by ______ Steam engine Hydraulic turbines Steam turbines None of the listed here Steam engine Hydraulic turbines Steam turbines None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Zero power factor method for alternator is generally used to determine Synchronous impedance of alternator Voltage regulation of the alternator None of the listed here Efficiency of alternator Synchronous impedance of alternator Voltage regulation of the alternator None of the listed here Efficiency of alternator ANSWER DOWNLOAD EXAMIANS APP
Alternators If the lagging load pf of an alternator is decreased, the demagnetising effect of armature reaction _______ Remains the same Is decreased None of the listed here Is increased Remains the same Is decreased None of the listed here Is increased 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 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 Decreasing the field excitation Increasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators The disadvantaged of a short pitched coil is that _______ Harmonics are introduced 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 ANSWER DOWNLOAD EXAMIANS APP
Alternators In case of turbo-alternators the rotor is usually made of Cast iron Laminated stainless steel Forged steel Manganese steel Cast iron Laminated stainless steel Forged steel Manganese steel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS