DC Generators Carbon brushes are used in a dc machine because _______ None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, the brushes on commutator remain in contact with conductors which Lie under North Pole Are farthest from the poles Lie under interpolar region Lie under South Pole Lie under North Pole Are farthest from the poles Lie under interpolar region Lie under South Pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators The critical resistance of the D.C. generator is the resistance of Load Field Armature Brushes Load Field Armature Brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when The generator runs on designed speed There is no load on the generator The generator runs on overload The generator runs on full load The generator runs on designed speed There is no load on the generator The generator runs on overload The generator runs on full load ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of v Hz 5 will be of 5 xiVHz will be of 5 Hz will be zero will be of v Hz 5 will be of 5 xiVHz will be of 5 Hz will be zero ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. None of the listed here More weight than The same weight as Less weight than None of the listed here More weight than The same weight as Less weight than ANSWER DOWNLOAD EXAMIANS APP
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