Alternators High speed alternators are driven by _____. Hydraulic turbines Diesel engines None of the listed here Steam turbines Hydraulic turbines Diesel engines None of the listed here Steam turbines ANSWER DOWNLOAD EXAMIANS APP
Alternators The number of cycles generated in a 6-pole alternators in one revolution is _______ 50 3 None of the listed here 6 50 3 None of the listed here 6 ANSWER DOWNLOAD EXAMIANS APP
Alternators The synchronous reactance of an alternator is due to ______ Armature reaction None of the listed here Leakage flux Dc field excitation Armature reaction None of the listed here Leakage flux Dc field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the effect of armature reaction is minimum at power factor of ______ 0.866 lagging 0.5 lagging 0.866 leading Unity 0.866 lagging 0.5 lagging 0.866 leading Unity 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 speed of prime movers 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 ANSWER DOWNLOAD EXAMIANS APP
Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Full armature voltage Very low voltage Low voltage Extra high tension voltage Full armature voltage Very low voltage Low voltage Extra high tension voltage ANSWER DOWNLOAD EXAMIANS APP
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