DC Generators The voltage drop for which of the following types of brush can be expected to be least? Graphite brushes Carbon brushes None of these Metal graphite brushes Graphite brushes Carbon brushes None of these Metal graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators Wave wound generators provide None of the listed here More current but less voltage Less current but more voltage More current and more voltage None of the listed here More current but less voltage Less current but more voltage More current and more voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Copper brushes Equalisers Compensating windings Interpole windings Copper brushes Equalisers Compensating windings Interpole windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators A triplex wave winding will have parallel paths. None of the listed here 6 4 2 None of the listed here 6 4 2 ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Total copper loss and mechanical loss Shunt field copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Total copper loss and mechanical loss Shunt field copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss 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 increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
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