DC Generators The nature of armature winding of a dc machine is decided by Back pitch Front pitch Commutator pitch None of the listed here Back pitch Front pitch Commutator pitch None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The brush voltage drop in dc machine is about _______ 20 V 10 V 0.1 V 2 V 20 V 10 V 0.1 V 2 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators Small dc machines generally have _____ poles. 2 8 6 4 2 8 6 4 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? Graphite brushes Metal graphite brushes None of these Carbon brushes Graphite brushes Metal graphite brushes None of these Carbon brushes 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. To increase the series flux 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 speed and hence generated e.m.f. To increase the series flux So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Soft copper Carbon Hard copper All of above Soft copper Carbon Hard copper All of above ANSWER DOWNLOAD EXAMIANS APP
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