Question

The motion of a shaft in a circular hole is an example of

(a) completely constrained motion

(b) incompletely constrained motion

(c) successfully constrained motion

(d) none of the mentioned

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I want to ask this question from Kinematic Link or Element topic in division Simple Mechanisms of Machine Kinematics

Answer 1

Correct option is (b) incompletely constrained motion

To elaborate: When the motion between a pair can take place in more than one direction, then the motion is called an incompletely constrained motion. A circular bar or shaft in a circular hole, is an example of an incompletely constrained motion as it may either rotate or slide in a hole.