DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using equalizer rings Using carbon brushes of superior quality Using commutator with large number of segments Using conductor of annealed copper Using equalizer rings Using carbon brushes of superior quality Using commutator with large number of segments Using conductor of annealed copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of D.C. machine winding, number of commutator segments is equal to Number of armature conductors Number of armature turns Number of armature coil sides Number of armature coils Number of armature conductors Number of armature turns Number of armature coil sides Number of armature coils ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Slip rings Commutator None of above Solid connection Slip rings Commutator None of above Solid connection ANSWER DOWNLOAD EXAMIANS APP
DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be Zero Small The same as rated voltage High Zero Small The same as rated voltage High ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ None of the listed here Carbon lubricates and polishes the commutator Contact resistance is decreased Carbon is cheap None of the listed here Carbon lubricates and polishes the commutator Contact resistance is decreased Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Total copper loss and mechanical loss Armature copper loss and iron loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Armature copper loss and iron loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
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