DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Speed too high No residual magnetism Wrong direction of rotation Open field Speed too high No residual magnetism Wrong direction of rotation Open field ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Copper brushes Compensating windings Equalisers Interpole windings Copper brushes Compensating windings Equalisers Interpole windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators ______ dc machine are most common. 2 pole 6 pole 4 pole 8 pole 2 pole 6 pole 4 pole 8 pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon lubricates and polishes the commutator Contact resistance is decreased None of the listed here Carbon is cheap Carbon lubricates and polishes the commutator Contact resistance is decreased None of the listed here Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Carbon Silicon steel Stainless steel Case iron Carbon Silicon steel Stainless steel Case iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the series flux To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the generated e.m.f. To increase the series flux To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
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