Alternators A lower voltage alternator, for the same power rating, will be More efficient More costly Operating at high rpm Larger in size More efficient More costly Operating at high rpm Larger in size ANSWER DOWNLOAD EXAMIANS APP
Alternators If the number of poles of an alternator is increased, the generated emf Remains the same None of the listed here Increases Decreases Remains the same None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Alternators If the lagging load pf of an alternator is decreased, the demagnetising effect of armature reaction _______ Remains the same Is increased Is decreased None of the listed here Remains the same Is increased Is decreased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators A 3 phase alternator has 3-slot per pole. The distribution factor of the winding is _______ 0.5 0.866 None of the listed here 1 0.5 0.866 None of the listed here 1 ANSWER DOWNLOAD EXAMIANS APP
Alternators Voltage regulation of an alternator is larger than that of a dc generator because of _______ Large leakage reactance Large armature resistance Complex effects of armature reaction None of the listed here Large leakage reactance Large armature resistance Complex effects of armature reaction None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged Double One fourth Half Unchanged Double One fourth Half ANSWER DOWNLOAD EXAMIANS APP
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