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 Compensating winding Shifting of axis of brushes Dummy coils Interpoles Compensating winding Shifting of axis of brushes Dummy coils Interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is None of the listed here Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 40 percent 5 percent 10 percent 25 percent 40 percent 5 percent 10 percent 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators The O. C. C. of a dc generator is also called its_______ characteristic. No load saturation Internal Performance External No load saturation Internal Performance External ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Armature copper loss and iron loss Total copper loss and mechanical loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss Armature copper loss and iron loss Total copper loss and mechanical loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Reluctance Ampere turns Resistance Flux density Reluctance Ampere turns Resistance Flux density ANSWER DOWNLOAD EXAMIANS APP
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