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 conductor of annealed copper Using carbon brushes of superior quality Using commutator with large number of segments Using equalizer rings Using conductor of annealed copper Using carbon brushes of superior quality ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generating machine will offer constant voltage on all loads? Separately excited generator All of these Level compounded generator Self-excited generator Separately excited generator All of these Level compounded generator Self-excited generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a _______ generator vary widely with changes in load current. None of the listed here Series Shunt Flat compounded None of the listed here Series Shunt Flat compounded ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is more stable Has exciting current independent of load current Has all above features Is amenable to better voltage control Is more stable Has exciting current independent of load current Has all above features Is amenable to better voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Reluctance Flux density Ampere turns Resistance Reluctance Flux density Ampere turns Resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the series flux So that the two identical machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both the machines To increase the generated e.m.f. To increase the series flux So that the two identical machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both the machines To increase the generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
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