Question

A cam profile is drawn which gives a uniform rise and fall of 60 mm to a point during each revolution of cam. The follower will rise to a distance of ____ mm if the shaft is rotated to an angle of 180 degrees.

(a) 20

(b) 40

(c) 30

(d) 60

I had been asked this question during an interview.

This intriguing question originated from Cam topic in section Curves used in Engineering Practice of Engineering Drawing

Answer 1

The correct choice is (d) 60

The explanation is: Given a cam profile is made throughout without any dwell and also with continuous rise- fall period. So 180 = maximum rise = 60 mm and further the follower fall uniformly while shaft rotating from 180 degree position to 360 degree position.