DC Generators A separately excited generator as compared to a self-excited generator Has all above features Is amenable to better voltage control Is more stable Has exciting current independent of load current Has all above features Is amenable to better voltage control Is more stable Has exciting current independent of load current ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Magnetic field Electric field Both electrical and magnetic fields None of the listed here Magnetic field Electric field Both electrical and magnetic fields None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator. More than Less than About the same as None of the listed here More than Less than About the same as None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Hysteresis loss Eddy current loss Copper loss Frictional loss Hysteresis loss Eddy current loss Copper loss Frictional loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Case iron Carbon Silicon steel Stainless steel Case iron Carbon Silicon steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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