Question is ⇒ To avoid formation of grooves in the csommutator of a D.C. machine, Options are ⇒ (A) the brushes of opposite polarity should track each other, (B) the brushes of same polarity should track each other, (C) brush position has no effect on the commutator grooving, (D) , (E) , Leave your comments or Download question paper.

Question is ⇒ To avoid formation of grooves in the csommutator of a D.C. machine, Options are ⇒ (A) the brushes of opposite polarity should track each other, (B) the brushes of same polarity should track each other, (C) brush position has no effect on the commutator grooving, (D) , (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	To avoid formation of grooves in the csommutator of a D.C. machine
A.	the brushes of opposite polarity should track each other [Correct Answer]
B.	the brushes of same polarity should track each other [Wrong Answer]
C.	brush position has no effect on the commutator grooving [Wrong Answer]
View Answer 9 -5 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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