DC Generators The rapid wear of brushes takes place due to Excessive spring pressure Abrasion from dust Rough commutator bars All of these Excessive spring pressure Abrasion from dust Rough commutator bars All of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Number of pairs of poles Number of poles Commutator pitch None of the listed here Number of pairs of poles Number of poles Commutator pitch None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of D.C. machine winding, number of commutator segments is equal to Number of armature turns Number of armature conductors Number of armature coil sides Number of armature coils Number of armature turns Number of armature conductors Number of armature coil sides Number of armature coils ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is amenable to better voltage control Has all above features Is more stable Has exciting current independent of load current Is amenable to better voltage control Has all above features Is more stable Has exciting current independent of load current ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a Stray loss None of the listed here Constant loss Variable loss Stray loss None of the listed here Constant loss Variable loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the commutating self induced e.m.f. None of these Neutralize the armature reaction flux Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the commutating self induced e.m.f. None of these Neutralize the armature reaction flux ANSWER DOWNLOAD EXAMIANS APP
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