DC Generators In D.C. generators on no-load, the air gap flux distribution in space is Flat topped Sinusoidal Triangular Pulsating Flat topped Sinusoidal Triangular Pulsating ANSWER DOWNLOAD EXAMIANS APP
DC Generators In lap winding, the number of brushes is always Two Half the number of poles Same as the number of poles Double the number of poles Two Half the number of poles Same as the number of poles Double the number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Weakend only Weakened as well as distorted None of the listed here Distorted only Weakend only Weakened as well as distorted None of the listed here Distorted only ANSWER DOWNLOAD EXAMIANS APP
DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be Zero Small High The same as rated voltage Zero Small High The same as rated voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Eddy current loss Frictional loss Hysteresis loss Copper loss Eddy current loss Frictional loss Hysteresis loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine 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 All of these ANSWER DOWNLOAD EXAMIANS APP
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