DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using equalizer rings Using conductor of annealed copper Using commutator with large number of segments Using carbon brushes of superior quality Using equalizer rings Using conductor of annealed copper Using commutator with large number of segments Using carbon brushes of superior quality ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal series field resistances unequal speed regulation of their primemovers unequal number of turns in their series field windings their rising voltage characteristics unequal series field resistances unequal speed regulation of their primemovers unequal number of turns in their series field windings their rising voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Copper is harder than mica Mica is harder than copper None of the listed here Mica and copper are equally hard Copper is harder than mica Mica is harder than copper None of the listed here Mica and copper are equally hard ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ None of the listed here Both electrical and magnetic fields Magnetic field Electric field None of the listed here Both electrical and magnetic fields Magnetic field Electric field ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Over compounded Shunt Flat compounded Series Over compounded Shunt Flat compounded Series ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the generated voltage depend upon Flux only None of the listed here Both speed and flux Speed only Flux only None of the listed here Both speed and flux Speed only ANSWER DOWNLOAD EXAMIANS APP
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