Question

What is the symmetrization accuracy of vees in V-Blocks?

(a) 0.002 mm per 20 mm length

(b) 0.001 mm per 20 mm length

(c) No effect of symmetry

(d) 0.02 mm per 20 mm length

This question was posed to me in class test.

The origin of the question is V-Block in division Linear Measurements of Engineering Metrology

Answer 1

The correct option is (a) 0.002 mm per 20 mm length

Easiest explanation: V blocks have symmetrization accuracy of 0.002 mm per 20 mm length in Vs and straightness accuracy is ±0.01 mm per 20 mm length.