Question

What is the depth of notch seen in impact testing methods?

(a) 2 mm

(b) 5 mm

(c) 9 mm

(d) 12 mm

The question was asked in an internship interview.

My question is from Impact Tests on Metals, Fatigue Tests in section Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

Answer 1

Right choice is (a) 2 mm

Easiest explanation: Charpy and Izod are the two impact testing methods used for impact testing of materials. Both the methods share a V-notch angle of 45 degrees and the same depth of notch of 2 mm.