DC Generators The yoke of a dc machine is made of Cast steel Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is ______ winding. An open circuit Partly open circuit and partly closed circuit None of the listed here A closed circuit An open circuit Partly open circuit and partly closed circuit None of the listed here A closed circuit ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. Less weight than The same weight as None of the listed here More weight than Less weight than The same weight as None of the listed here More weight than ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Total copper loss and mechanical loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss Armature copper loss and iron loss Total copper loss and mechanical loss Iron loss and mechanical loss Shunt field copper loss and mechanical loss Armature copper loss and iron loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? Metal graphite brushes None of these Carbon brushes Graphite brushes Metal graphite brushes None of these Carbon brushes Graphite brushes ANSWER DOWNLOAD EXAMIANS APP
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