DC Generators The O. C. C. of a dc generator None of the listed here Is different for different generators May be same or different Is similar for all types of generators None of the listed here Is different for different generators May be same or different Is similar for all types of generators ANSWER DOWNLOAD EXAMIANS APP
DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be The same as rated voltage Zero High Small The same as rated voltage Zero High Small ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Wrought iron Cast steel Soft iron Silocon steel Wrought iron Cast steel Soft iron Silocon steel 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 reverse the field connections check armature insulation resistance increase the field resistance increase the speed of primemover reverse the field connections check armature insulation resistance increase the field resistance increase the speed of primemover ANSWER DOWNLOAD EXAMIANS APP
DC Generators ______ dc machine are most common. 2 pole 4 pole 6 pole 8 pole 2 pole 4 pole 6 pole 8 pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines To increase the series flux To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
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