12) 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
Answer is:
Lower pair
Related Theory of Machines MCQ with Answers
Answer is:
Party turning and partly sliding
Answer is:
Force closed pair
Explanation:
When the two elements of a pair are not connected mechanically but are kept in contact by the action of external forces, the pair is said to be a force-closed pair. The cam and follower is an example of force closed pair, as it is kept in contact by the forces exerted by spring and gravity.
