When the nature of contact between the elements of a pair is such that it can turn or revolve about a fixed axis, the pair is known as a rolling pair.

When the nature of contact between the elements of a pair is such that

1.	When the nature of contact between the elements of a pair is such that it can turn or revolve about a fixed axis, the pair is known as a rolling pair.
A.	Correct
B.	Incorrect
C.	Can't say
D.	None of these
Answer» C. Can't say

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When the nature of contact between the elements of a pair is such that it can turn or revolve about a fixed axis, the pair is known as a rolling pair.

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