Question

If n links are connected at the same joint, the joint is equivalent to

(a) (n – 1) binary joints

(b) (n – 2) binary joints

(c) (2n – 1) binary joints

(d) none of the mentioned

I have been asked this question in an international level competition.

The query is from Simple Mechanisms in chapter Simple Mechanisms of Machine Kinematics

Answer 1

The correct answer is (a) (n – 1) binary joints

For explanation I would say: In general, when n number of links are joined at the same connection, the joint is equivalent to (n – 1) binary joints.