DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Open field No residual magnetism Wrong direction of rotation Speed too high Open field No residual magnetism Wrong direction of rotation Speed too high ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Voltage Amount of current to be collected Type of winding Speed of armature Voltage Amount of current to be collected Type of winding Speed of armature 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 opposite to that of the main pole ahead 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 the same as that of the immediately preceding pole Is opposite to that of the main pole ahead Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Weakened as well as distorted Weakend only Distorted only None of the listed here Weakened as well as distorted Weakend only Distorted only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Number of poles Commutator pitch None of the listed here Number of pairs of poles Number of poles Commutator pitch None of the listed here Number of pairs of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have The same drooping voltage characteristics Same kW rating Same percentage regulation The same operation r.p.m. The same drooping voltage characteristics Same kW rating Same percentage regulation The same operation r.p.m. ANSWER DOWNLOAD EXAMIANS APP
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