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 0.5 m 5 m 0.005 mm 0.05 mm 0.5 m 5 m ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator of a dc generator acts as A rectifier A load An amplifier None of the listed here A rectifier A load An amplifier None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator means its Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. Less than 0.5 % More than 20% 15 to 25% 2% to 5% Less than 0.5 % More than 20% 15 to 25% 2% to 5% ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal series field resistances unequal number of turns in their series field windings their rising voltage characteristics unequal speed regulation of their primemovers unequal series field resistances unequal number of turns in their series field windings their rising voltage characteristics unequal speed regulation of their primemovers 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 High Small Zero The same as rated voltage High Small Zero The same as rated voltage ANSWER DOWNLOAD EXAMIANS APP
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