DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be Small Zero The same as rated voltage High Small Zero The same as rated voltage High ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 10 100 50 150 10 100 50 150 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Insulating varnish Graphite Paper Mica Insulating varnish Graphite Paper Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the constant losses is equal to Mechanical losses Stray losses Stray losses plus shunt cu loss None of the listed here Mechanical losses Stray losses Stray losses plus shunt cu loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. More weight than Less weight than None of the listed here The same weight as More weight than Less weight than None of the listed here The same weight as ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Iron loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
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