DC Generators Dc machines which are subjected to abrupt changes of load are provided with Copper brushes Compensating windings Equalisers Interpole windings Copper brushes Compensating windings Equalisers Interpole windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators the polarity of the interpoles Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the immediately preceding pole Is opposite to that of the main pole ahead Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the immediately preceding pole Is opposite to that of the main pole ahead Is the same as that of the main pole ahead ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Copper is harder than mica None of the listed here Mica is harder than copper Mica and copper are equally hard Copper is harder than mica None of the listed here Mica is harder than copper Mica and copper are equally hard ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is 2 8 6 4 2 8 6 4 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Rough commutator bars Abrasion from dust All of these Excessive spring pressure Rough commutator bars Abrasion from dust All of these Excessive spring pressure 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 The same as rated voltage Zero Small High The same as rated voltage Zero Small High ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS