Alternators The number of poles in turbo alternators is usually 2 12 50 4 2 12 50 4 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. Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Full armature voltage Low voltage Very low voltage Extra high tension voltage Full armature voltage Low voltage Very low voltage Extra high tension voltage ANSWER DOWNLOAD EXAMIANS APP
Alternators The alternators driven by _______ do not have a tendency to hunt. Steam turbines Water turbines Diesel engines None of the listed here Steam turbines Water turbines Diesel engines None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators A lower voltage alternator, for the same power rating, will be More costly More efficient Larger in size Operating at high rpm More costly More efficient Larger in size Operating at high rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators In a large generator, dampers Reduce frequency fluctuations None of the listed here Reduce voltage fluctuations Increase stability Reduce frequency fluctuations None of the listed here Reduce voltage fluctuations Increase stability ANSWER DOWNLOAD EXAMIANS APP
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