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 Shifting of axis of brushes Dummy coils Interpoles Compensating winding Shifting of axis of brushes Dummy coils Interpoles Compensating winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Iron loss and mechanical loss Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Equal to electrical efficiency More than electrical efficiency None of the listed here Less than electrical efficiency Equal to electrical efficiency More than electrical efficiency None of the listed here Less than electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine carries ______ pole flux. One-half of None of the listed here Three times Two times the One-half of None of the listed here Three times Two times the ANSWER DOWNLOAD EXAMIANS APP
DC Generators High voltage dc machine use _____ winding. None of the listed here Wave Lap Either lap or wave None of the listed here Wave Lap Either lap or wave ANSWER DOWNLOAD EXAMIANS APP
DC Generators The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be 640 V 580 V 600 V 620 V 640 V 580 V 600 V 620 V ANSWER DOWNLOAD EXAMIANS APP
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