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 1000 rpm 1500 rpm 500 rpm None of the listed here 1000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators The synchronous reactance of an alternator is generally _______ armature resistance. 5 times smaller than 5 times greater than 10 to 100 times greater than 10 times smaller than 5 times smaller than 5 times greater than 10 to 100 times greater than 10 times smaller than ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Half One fourth Double Unchanged Half One fourth Double Unchanged ANSWER DOWNLOAD EXAMIANS APP
Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. The same as Smaller than None of the listed here Greater than The same as Smaller than None of the listed here Greater than ANSWER DOWNLOAD EXAMIANS APP
Alternators In aircrafts, alternators have operating frequency of 800 Hz 60 Hz 400 Hz 50 Hz 800 Hz 60 Hz 400 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators If the excitation of an alternator operating in parallel with other alternators is decreased, its ______ Output kW will change Pf becomes more lagging Pf becomes more leading None of the listed here Output kW will change Pf becomes more lagging Pf becomes more leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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