The rapid wear of brushes takes place due to
A. Abrasion from dust
B. Excessive spring pressure
C. Rough commutator bars
D. All of the above factors
Answer: Option D
This Question Belongs to Electrical Engineering >> D.C. Generators
Related Questions on D.C. Generators
A cumulatively compounded long shunt generator when operating as a motor would be
A. Cumulatively compounded long shunt
B. Differentially compounded long shunt
C. Cumulatively compounded short shunt
D. Differentially compounded short shunt
A. Demagnetization only
B. Cross magnetization as well as magnetization
C. Cross-magnetization as well as demagnetizing
D. Cross magnetization only
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