DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Copper loss Frictional loss Hysteresis loss Eddy current loss Copper loss Frictional loss Hysteresis loss Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Shunt Over compounded Flat compounded Series Shunt Over compounded Flat compounded Series ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole dc machine has _____ magnetic circuits. 2 6 8 4 2 6 8 4 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The O. C. C. of a dc generator is also called its_______ characteristic. Performance Internal No load saturation External Performance Internal No load saturation External ANSWER DOWNLOAD EXAMIANS APP
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 When two D.C. generators are running in parallel an equalizer bar is used To reduce the combined effect of armature reaction of both the machines To increase the series flux To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both the machines To increase the series flux To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load ANSWER DOWNLOAD EXAMIANS APP
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