DC Generators If the value of shunt field resistance of a shunt generator is greater than the critical resistance, the generator will None of the listed here Fail to excite Excite to full voltage Excite to one half of full voltage None of the listed here Fail to excite Excite to full voltage Excite to one half of full voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators With a D.C. generator which of the following regulation is preferred? 1% regulation 100% regulation 50% regulation Infinite regulation 1% regulation 100% regulation 50% regulation Infinite regulation ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc machine is laminated in order to reduce Hysteresis loss Frictional loss Eddy current loss Copper loss Hysteresis loss Frictional loss Eddy current loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have The same operation r.p.m. The same drooping voltage characteristics Same kW rating Same percentage regulation The same operation r.p.m. The same drooping voltage characteristics Same kW rating Same percentage regulation ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency 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 reaction 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 ANSWER DOWNLOAD EXAMIANS APP
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