When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a$?

When the two elements of a pair have a surface contact when relative m

1.	When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a$?
A.	Lower pair
B.	Higher pair
C.	Self-closed pair
D.	Force-closed pair
Answer» B. Higher pair

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When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a$?

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