Alternators When the speed of an alternator is reduced by half, the generated emf will become One-fourth Half Four times Twice One-fourth Half Four times Twice ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Reduce eddy current losses Reduce distortion of waveform Cool the machine Strengthen the magnetic field Reduce eddy current losses Reduce distortion of waveform Cool the machine Strengthen the magnetic field 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 Increasing the speed of prime movers Decreasing the field excitation Decreasing the speed of prime movers Increasing the field excitation Increasing the speed of prime movers Decreasing the field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators The alternators driven by _______ do not have a tendency to hunt. Steam turbines None of the listed here Water turbines Diesel engines Steam turbines None of the listed here Water turbines Diesel engines ANSWER DOWNLOAD EXAMIANS APP
Alternators In case of turbo-alternators the rotor is usually made of Forged steel Laminated stainless steel Manganese steel Cast iron Forged steel Laminated stainless steel Manganese steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Alternators The stator of an alternator is identical to that of a ______ Roserberg generator 1-phase induction motor Dc generator 3-phase induction motor Roserberg generator 1-phase induction motor Dc generator 3-phase induction motor ANSWER DOWNLOAD EXAMIANS APP
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