Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Decreasing the field excitation 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 ANSWER DOWNLOAD EXAMIANS APP
Alternators If the lagging load pf of an alternator is decreased, the demagnetising effect of armature reaction _______ Is decreased None of the listed here Remains the same Is increased Is decreased None of the listed here Remains the same Is increased ANSWER DOWNLOAD EXAMIANS APP
Alternators The losses in an alternator are the same as in A dc machine A transformer None of the listed here A rectifier A dc machine A transformer None of the listed here A rectifier ANSWER DOWNLOAD EXAMIANS APP
Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. None of the listed here The same as Smaller than Greater than None of the listed here The same as Smaller than Greater than ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the armature reaction will be completely magnetizing in case the load power factor is Unity Zero lagging Zero leading 0.866 Unity Zero lagging Zero leading 0.866 ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of a salient pole machine is nearly 3000 rpm 1500 rpm 500 rpm 1000 rpm 3000 rpm 1500 rpm 500 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
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