DC Generators Open circuited armature coil of a D.C. machine is Indicated by a spark completely around the commutator None of these Both of the listed here Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator None of these Both of the listed here Identified by the scarring of the commutator segment to which open circuited coil is connected ANSWER DOWNLOAD EXAMIANS APP
DC Generators D.C. generator generally preferred for charging automobile batteries is Series generator Long shunt compound generator Shunt generator Any of the above Series generator Long shunt compound generator Shunt generator Any of the above ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Solid connection Commutator None of above Slip rings Solid connection Commutator None of above Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. 2% to 5% Less than 0.5 % More than 20% 15 to 25% 2% to 5% Less than 0.5 % More than 20% 15 to 25% 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 Interpoles Shifting of axis of brushes Dummy coils Compensating winding Interpoles Shifting of axis of brushes Dummy coils Compensating winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, armature reaction _____ pole tip. None of the listed here Weaknes the flux at the leading Weaknes the flux at the trailing Strengthns the flux at the leading None of the listed here Weaknes the flux at the leading Weaknes the flux at the trailing Strengthns the flux at the leading ANSWER DOWNLOAD EXAMIANS APP
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