DC Generators The voltage drop for which of the following types of brush can be expected to be least? None of these Graphite brushes Carbon brushes Metal graphite brushes None of these Graphite brushes Carbon brushes Metal graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Cast steel Soft iron Aluminum Silicon steel Cast steel Soft iron Aluminum Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is more stable Is amenable to better voltage control Has exciting current independent of load current Has all above features Is more stable Is amenable to better voltage control Has exciting current independent of load current Has all above features ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Stray loss Iron loss Constant loss Mechanical loss Stray loss Iron loss Constant loss Mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the critical resistance refers to the resistance of Load Armature Brushes Field Load Armature Brushes Field 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 High Small Zero The same as rated voltage High Small Zero The same as rated voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS