How to avoid grooves in the commutation of DC machine with the help of – McqOptions

MCQOPTIONS

1.	How to avoid grooves in the commutation of DC machine with the help of brush?
A.	Brushes of opposite polarity should track each other
B.	Brushes of same polarity should track each other
C.	Brush position has no effect on the commutator grooving
D.	Brushes should not track each other
Answer» B. Brushes of same polarity should track each other

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