Question

Which of the following is incorrect about V-Blocks?

(a) V-Blocks should be checked periodically for accuracy

(b) V-Blocks are used to establish centre axis of a cylindrical piece precisely

(c) First check the V-Blocks visually before using

(d) V-Blocks cannot be used with clamps

I had been asked this question in unit test.

This is a very interesting question from V-Block topic in chapter Linear Measurements of Engineering Metrology

Answer 1

Right choice is (d) V-Blocks cannot be used with clamps

For explanation: V-blocks should be checked periodically for accuracy and also checked for scratches and dents. Sometimes clamps are used with V-Blocks to secure the work.