DC Generators The armature of dc machine is laminated in order to reduce Eddy current loss Copper loss Frictional loss Hysteresis loss Eddy current loss Copper loss Frictional loss Hysteresis loss 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 Compensating winding Interpoles Dummy coils Shifting of axis of brushes Compensating winding Interpoles Dummy coils Shifting of axis of brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator 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 Copper is harder than mica None of the listed here Mica is harder than copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators With a D.C. generator which of the following regulation is preferred? 1% regulation 50% regulation 100% regulation Infinite regulation 1% regulation 50% regulation 100% regulation Infinite regulation ANSWER DOWNLOAD EXAMIANS APP
DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to check armature insulation resistance reverse the field connections increase the field resistance increase the speed of primemover check armature insulation resistance reverse the field connections increase the field resistance increase the speed of primemover ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? No residual magnetism Open field Speed too high Wrong direction of rotation No residual magnetism Open field Speed too high Wrong direction of rotation ANSWER DOWNLOAD EXAMIANS APP
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