DC Generators Brushes of D.C. machines are made of Hard copper Soft copper Carbon All of above Hard copper Soft copper Carbon All of above ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Compensating windings Equalisers Copper brushes Interpole windings Compensating windings Equalisers Copper brushes Interpole windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using commutator with large number of segments Using conductor of annealed copper Using carbon brushes of superior quality Using equalizer rings Using commutator with large number of segments Using conductor of annealed copper Using carbon brushes of superior quality Using equalizer rings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have Same percentage regulation Same kW rating The same operation r.p.m. The same drooping voltage characteristics Same percentage regulation Same kW rating The same operation r.p.m. The same drooping voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Armature resistance drop Field weakening due to armature reaction and armature Commutation Armature reaction Armature resistance drop Field weakening due to armature reaction and armature Commutation Armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest eddy current loss occurs in the _____ of a dc machine. Field poles Yoke Commutating poles Armature Field poles Yoke Commutating poles Armature ANSWER DOWNLOAD EXAMIANS APP
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