DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used So that two similar machines will pass approximately equal currents to the load To increase the speed and hence generated e.m.f. To increase the series flux To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the speed and hence generated e.m.f. To increase the series flux To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of 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 Armature copper loss and iron loss Total copper loss and mechanical loss Iron loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Silicon steel Nonferrous material Cast-iron Copper Silicon steel Nonferrous material Cast-iron Copper ANSWER DOWNLOAD EXAMIANS APP
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 Dummy coils Interpoles Shifting of axis of brushes Compensating winding Dummy coils Interpoles Shifting of axis of brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Commutation Field weakening due to armature reaction and armature Armature resistance drop Armature reaction Commutation Field weakening due to armature reaction and armature Armature resistance drop Armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generating machine will offer constant voltage on all loads? Level compounded generator All of these Separately excited generator Self-excited generator Level compounded generator All of these Separately excited generator Self-excited generator ANSWER DOWNLOAD EXAMIANS APP
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