Which
of the following pairs is NOT an example of a lower pair?
Prismatic
pair
Helical
and cylindrical pair
Revolute
pair
Rolling
ball on a flat surface
Rolling
ball on a flat surface
Lower
pair is such pair where links are having surface or area contact between the
members.
Example:
(i)
Prismatic pair
(ii)
Revolute pair
(iii)
Helical and Cylindrical pair
Higher
pair has a point or line contact between the links.
Example:
(i)
Cam and follower pair
(ii)
Rolling ball on a flat surface
Hence,
the correct option is (D).
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