DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be The same as rated voltage Small High Zero The same as rated voltage Small High Zero ANSWER DOWNLOAD EXAMIANS APP
DC Generators The O. C. C. of a dc generator is also called its_______ characteristic. No load saturation Performance Internal External No load saturation Performance Internal External ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using carbon brushes of superior quality Using commutator with large number of segments Using conductor of annealed copper Using equalizer rings Using carbon brushes of superior quality Using commutator with large number of segments Using conductor of annealed copper Using equalizer rings ANSWER DOWNLOAD EXAMIANS APP
DC Generators If the value of shunt field resistance of a shunt generator is greater than the critical resistance, the generator will None of the listed here Fail to excite Excite to one half of full voltage Excite to full voltage None of the listed here Fail to excite Excite to one half of full voltage Excite to full voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when There is no load on the generator The generator runs on overload The generator runs on full load The generator runs on designed speed There is no load on the generator The generator runs on overload The generator runs on full load The generator runs on designed speed ANSWER DOWNLOAD EXAMIANS APP
DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to reverse the field connections increase the field resistance increase the speed of primemover check armature insulation resistance reverse the field connections increase the field resistance increase the speed of primemover check armature insulation resistance ANSWER DOWNLOAD EXAMIANS APP
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