Question

Which V block is used for checking triangle effect?

(a) V block with 120-degree angle is used

(b) V block with 90-degree angle is used

(c) V block with 60-degree angle is used

(d) V block with 30-degree angle is used

This question was addressed to me during an interview for a job.

The question is from V-Block in portion Linear Measurements of Engineering Metrology

Answer 1

Right answer is (a) V block with 120-degree angle is used

To elaborate: V-blocks with 120-degree vee angle are available for some special purposes like checking triangle effect or taps. V-blocks with 90-degree angle are general purpose V-Blocks.