DC Generators The insulating material used between the commutator segments is normally Mica Paper Insulating varnish Graphite Mica Paper Insulating varnish Graphite ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except Compensating winding Shifting of axis of brushes Dummy coils Interpoles Compensating winding Shifting of axis of brushes Dummy coils Interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Generators An exciter for a turbo generator is a Separately excited generator Series generator Compound generator Shunt generator Separately excited generator Series generator Compound generator Shunt generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Ampere turns Flux density Resistance Reluctance Ampere turns Flux density Resistance Reluctance ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To reduce eddy current losses To provide mechanical balance for the rotor To enhance flux density To amplify voltage To reduce eddy current losses To provide mechanical balance for the rotor To enhance flux density To amplify voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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