Question

Which of the following is incorrect about V blocks?

(a) Cylindrical piece should be placed on the vee sides

(b) Cylindrical piece should be placed on the edges of the vees

(c) V-Blocks generally sold in pairs

(d) V-blocks can support square, round and rectangular pieces

I got this question in an interview.

My enquiry is from V-Block topic in section Linear Measurements of Engineering Metrology

Answer 1

The correct option is (b) Cylindrical piece should be placed on the edges of the vees

Explanation: Cylindrical pieces should not be placed on the edges; it should be on the vee sides otherwise there is an inaccuracy in marking centres. V-blocks are mostly used to hold cylindrical work pieces but it can also support square and rectangular pieces.