DC Generators For the same rating, a dc machine has_______ an ac machines. More weight than 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 ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ None of the listed here Contact resistance is decreased Carbon lubricates and polishes the commutator Carbon is cheap None of the listed here Contact resistance is decreased Carbon lubricates and polishes the commutator Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of motion of conductor, if forefinger points along the lines of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of flux Direction of induced e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of flux Direction of induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a Variable loss Stray loss Constant loss None of the listed here Variable loss Stray loss Constant loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field structure of a dc machine uses ______ Salient pole arrangements None salient pole arrangements None of the listed here Both salient and non salient pole arrangements Salient pole arrangements None salient pole arrangements None of the listed here Both salient and non salient pole arrangements ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Resistance Ampere turns Reluctance Flux density Resistance Ampere turns Reluctance Flux density ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS