DC Generators Brushes of D.C. machines are made of Soft copper Hard copper All of above Carbon Soft copper Hard copper All of above Carbon ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Flat compounded Shunt Series Over compounded Flat compounded Shunt Series Over compounded ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator None of the listed here Mica and copper are equally hard Mica is harder than copper Copper is harder than mica None of the listed here Mica and copper are equally hard Mica is harder than copper Copper is harder than mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, the eddy current power loss is Directly proportional to sqaure of thickness of each lamination Directly proportional to thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination Directly proportional to thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Both electrical and magnetic fields Magnetic field None of the listed here Electric field Both electrical and magnetic fields Magnetic field None of the listed here Electric field 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 zero will be of v Hz 5 will be of 5 Hz will be of 5 xiVHz will be zero will be of v Hz 5 will be of 5 Hz will be of 5 xiVHz ANSWER DOWNLOAD EXAMIANS APP
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