DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Speed too high No residual magnetism Wrong direction of rotation Open field Speed too high No residual magnetism Wrong direction of rotation Open field ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Rough commutator bars All of these Abrasion from dust Excessive spring pressure Rough commutator bars All of these Abrasion from dust Excessive spring pressure ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole, 250 V, wave wound generator has 400 conductors. If the generator is to be lap wound, the number of conductors required is ______ 3200 100 800 1600 3200 100 800 1600 ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole duplex lap winding will have ______ parallel paths. 32 16 8 4 32 16 8 4 ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except Interpoles Shifting of axis of brushes Dummy coils Compensating winding Interpoles Shifting of axis of brushes Dummy coils Compensating winding ANSWER DOWNLOAD EXAMIANS APP
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