DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be High Zero The same as rated voltage Small High Zero The same as rated voltage Small ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using conductor of annealed copper Using equalizer rings Using commutator with large number of segments Using carbon brushes of superior quality Using conductor of annealed copper Using equalizer rings Using commutator with large number of segments Using carbon brushes of superior quality ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Carbon All of above Hard copper Soft copper Carbon All of above Hard copper Soft copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 5 percent 40 percent 10 percent 25 percent 5 percent 40 percent 10 percent 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Cast-iron Nonferrous material Copper Silicon steel Cast-iron Nonferrous material Copper Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The real working part of a dc machine is the ______ Armature winding None of the listed here Commutator Field winding Armature winding None of the listed here Commutator Field winding ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS