When the two elements of a pair are connected in such a way that one can only turn or revolve about a fixed axis of another link, the pair is known as turning pair. A shaft with collars at both ends fitted into a circular hole, the crankshaft in a journal bearing in an engine, lathe spindle supported in head stock, cycle wheels turning over their axles etc. are the examples of turning pair. A turning pair also has a completely constrained motion.
11) Which of the following is a turning pair ?
Answer is:
Shaft with collar at both ends fitted into a circular hole.
Explanation:
Related Theory of Machines MCQ with Answers
Answer is:
Lower pair
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.
