DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Electric field Magnetic field None of the listed here Both electrical and magnetic fields Electric field Magnetic field None of the listed here Both electrical and magnetic fields ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using commutator with large number of segments Using equalizer rings Using conductor of annealed copper Using carbon brushes of superior quality Using commutator with large number of segments Using equalizer rings Using conductor of annealed copper Using carbon brushes of superior quality ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Weakend only Distorted only None of the listed here Weakened as well as distorted Weakend only Distorted only None of the listed here Weakened as well as distorted ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature conductors of a 6 pole, lap wound dc generator are divided into 4 parallel paths 6 parallel paths 3 parallel paths 2 parallel paths 4 parallel paths 6 parallel paths 3 parallel paths 2 parallel paths ANSWER DOWNLOAD EXAMIANS APP
DC Generators A shunt generator gives its greatest voltage at None of the listed here No load Half full load Full load None of the listed here No load Half full load Full load ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine All of these Brush position has no effect on the commutator grooving The brushes of same polarity should track each other The brushes of opposite polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of same polarity should track each other The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
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