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 Compensating winding Interpoles Shifting of axis of brushes Dummy coils Compensating winding Interpoles Shifting of axis of brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc generator is laminated to Provide the bulk Reduce the bulk Reduce eddy current loss Insulate the core Provide the bulk Reduce the bulk Reduce eddy current loss Insulate the core ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal number of turns in their series field windings their rising voltage characteristics unequal speed regulation of their primemovers unequal series field resistances unequal number of turns in their series field windings their rising voltage characteristics unequal speed regulation of their primemovers unequal series field resistances ANSWER DOWNLOAD EXAMIANS APP
DC Generators The critical resistance of the D.C. generator is the resistance of Load Armature Brushes Field Load Armature Brushes Field ANSWER DOWNLOAD EXAMIANS APP
DC Generators Open circuited armature coil of a D.C. machine is Indicated by a spark completely around the commutator Both of the listed here None of these Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator Both of the listed here None of these Identified by the scarring of the commutator segment to which open circuited coil is connected ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Weakend only Weakened as well as distorted Distorted only None of the listed here Weakend only Weakened as well as distorted Distorted only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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