DC Generators High voltage dc machine use _____ winding. Wave Lap Either lap or wave None of the listed here Wave Lap Either lap or wave None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field coil of dc generator are usually made of Cast iron Copper Mica Carbon Cast iron Copper Mica Carbon ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Open field Speed too high No residual magnetism Wrong direction of rotation Open field Speed too high No residual magnetism Wrong direction of rotation ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Hard copper All of above Carbon Soft copper Hard copper All of above Carbon Soft copper 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 High Zero Small The same as rated voltage High Zero Small ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used So that two similar machines will pass approximately equal currents to the load To increase the series flux To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the series flux To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
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