DC Generators Brushes of D.C. machines are made of All of above Carbon Soft copper Hard copper All of above Carbon Soft copper Hard copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature conductors of a 6 pole, lap wound dc generator are divided into 3 parallel paths 6 parallel paths 4 parallel paths 2 parallel paths 3 parallel paths 6 parallel paths 4 parallel paths 2 parallel paths ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators the polarity of the interpoles Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the main pole ahead Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the main pole ahead ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc generator is laminated to Insulate the core Reduce eddy current loss Reduce the bulk Provide the bulk Insulate the core Reduce eddy current loss Reduce the bulk Provide the bulk ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. 15 to 25% Less than 0.5 % 2% to 5% More than 20% 15 to 25% Less than 0.5 % 2% to 5% More than 20% ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both the machines To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both the machines ANSWER DOWNLOAD EXAMIANS APP
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