DC Generators In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except Dummy coils Interpoles Shifting of axis of brushes Compensating winding Dummy coils Interpoles Shifting of axis of brushes Compensating winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators The real working part of a dc machine is the ______ Field winding Commutator Armature winding None of the listed here Field winding Commutator Armature winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Interpole windings Copper brushes Compensating windings Equalisers Interpole windings Copper brushes Compensating windings Equalisers ANSWER DOWNLOAD EXAMIANS APP
DC Generators Stray losses consist of Magnetic and mechanical losses None of the listed here Magnetic and copper losses Mechanical and copper losses Magnetic and mechanical losses None of the listed here Magnetic and copper losses Mechanical and copper losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a Hydrobola Straight line Parabola None of the listed here Hydrobola Straight line Parabola None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both the machines To increase the series flux To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both the machines To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
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