Question

Which of the following is correct for departure from flatness in Vees?

(a) Any departure from flatness in vees should be a concavity

(b) Any departure from flatness parallel to the vee axis should be a concavity

(c) Any departure from flatness parallel to the vee axis should be a convexity

(d) Any departure from flatness in vees can be a concavity or convexity

I have been asked this question by my school principal while I was bunking the class.

My query is from V-Block in chapter Linear Measurements of Engineering Metrology

Answer 1

Right answer is (b) Any departure from flatness parallel to the vee axis should be a concavity

Easiest explanation: Any departure from flatness on surfaces other than vees should be a concavity and from vees should be convexity. Any departure from flatness parallel to the vee axis should be a concavity.