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Cams and followers: follower motion direction for a radial (disc) cam Determine the correct direction of follower motion relative to the cam axis for a radial cam mechanism. Choose the correct option.

Difficulty: Easy

In a direction perpendicular to the cam axis
In a direction parallel to the cam axis
In any direction irrespective of the cam axis
Along the cam axis itself

Correct Answer: In a direction perpendicular to the cam axis

Explanation:

Concept
A radial (disc) cam has the follower moving in the plane of cam rotation (radially in/out), which is perpendicular to the cam's axis.

Elimination
(b) and (d) imply axial movement (that is typical for cylindrical/axial cams, not radial cams). (c) is too vague and incorrect.

Final Answer
In a direction perpendicular to the cam axis

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