Question

The size of a cam depends upon

(a) base circle

(b) pitch circle

(c) prime circle

(d) pitch curve

I got this question during an online interview.

This intriguing question originated from Cams topic in portion Cams of Machine Dynamics

Answer 1

Right answer is (a) base circle

The best explanation: Base circle is the smallest circle that can be drawn to the cam profile.

Pitch circle is a circle drawn from the centre of the cam through the pitch points.

Prime circle is the smallest circle that can be drawn from the centre of the cam and

tangent to the pitch curve.