DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to Constant loss Equal to double the constant loss None of the listed here Equal to half of constant loss Equal to Constant loss Equal to double the constant loss None of the listed here Equal to half of constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Number of pairs of poles Commutator pitch Number of poles None of the listed here Number of pairs of poles Commutator pitch Number of poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Number of tapings for each equalizer ring is equal to Number of commutator segments Number of pole pairs Number of parallel paths Number of poles Number of commutator segments Number of pole pairs Number of parallel paths Number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field coil of dc generator are usually made of Mica Cast iron Carbon Copper Mica Cast iron Carbon Copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux 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 Shifting of axis of brushes Compensating winding Dummy coils Interpoles Shifting of axis of brushes Compensating winding Dummy coils Interpoles ANSWER DOWNLOAD EXAMIANS APP
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