DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using commutator with large number of segments Using equalizer rings Using carbon brushes of superior quality Using conductor of annealed copper Using commutator with large number of segments Using equalizer rings Using carbon brushes of superior quality Using conductor of annealed copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. More weight than None of the listed here Less weight than The same weight as More weight than None of the listed here Less weight than The same weight as ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Has all above features Is amenable to better voltage control Has exciting current independent of load current Is more stable Has all above features Is amenable to better voltage control Has exciting current independent of load current Is more stable ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have The same drooping voltage characteristics Same kW rating Same percentage regulation The same operation r.p.m. The same drooping voltage characteristics Same kW rating Same percentage regulation The same operation r.p.m. ANSWER DOWNLOAD EXAMIANS APP
DC Generators An exciter for a turbo generator is a Compound generator Separately excited generator Series generator Shunt generator Compound generator Separately excited generator Series generator Shunt generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators The brush voltage drop in dc machine is about _______ 0.1 V 10 V 2 V 20 V 0.1 V 10 V 2 V 20 V ANSWER DOWNLOAD EXAMIANS APP
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