Alternators Turbo alternators have rotors of _______ Small diameter and long axial length Large diameter and small axial length Large diameter and long axial length Same diameter and axial length Small diameter and long axial length Large diameter and small axial length Large diameter and long axial length Same diameter and axial length ANSWER DOWNLOAD EXAMIANS APP
Alternators The efficiency of the turbo-alternator _____ with increases in speed. Remians unchanged None of the listed here Increases Decreases Remians unchanged None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Low voltage Very low voltage Full armature voltage Extra high tension voltage Low voltage Very low voltage Full armature voltage Extra high tension voltage 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 The distribution of load between two alternators operating in parallel can be changed by changing ______ None of the listed here Phase sequence Driving torques of prime movers Field excitation of alternators None of the listed here Phase sequence Driving torques of prime movers Field excitation of alternators ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed at which a 6-pole alternator should be driven to generate 50 cycles per second is _______ 500 rpm None of the listed here 1500 rpm 1000 rpm 500 rpm None of the listed here 1500 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
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