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 The copper loss is constant for Shunt generator only Series generator only None of the listed here Both shunt and compound generator Shunt generator only Series generator only None of the listed here Both shunt and compound generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Insulating varnish Graphite Paper Mica Insulating varnish Graphite Paper Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be Small Zero The same as rated voltage High Small Zero The same as rated voltage High ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Series Over compounded Flat compounded Shunt Series Over compounded Flat compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator means its None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
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