DC Generators The commutator of a dc generator acts as A load An amplifier None of the listed here A rectifier A load An amplifier None of the listed here A rectifier ANSWER DOWNLOAD EXAMIANS APP
DC Generators The effect of armature reaction is to Decrease the total flux Increase the total flux None of the listed here Make the air gap flux uniform Decrease the total flux Increase the total flux None of the listed here Make the air gap flux uniform ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 0.005 mm 0.05 mm 5 m 0.5 m 0.005 mm 0.05 mm 5 m 0.5 m ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators the polarity of the interpoles Is the same as that of the immediately preceding pole Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is opposite to that of the main pole ahead 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 Small High The same as rated voltage Zero Small High The same as rated voltage Zero ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Type of winding Voltage Speed of armature Amount of current to be collected Type of winding Voltage Speed of armature Amount of current to be collected ANSWER DOWNLOAD EXAMIANS APP
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