Question

The usual angle through which bending should be obtained in a bending test is ________

(a) 180°

(b) 120°

(c) 75°

(d) 90°

This question was addressed to me during an internship interview.

The doubt is from Aircraft Materials topic in section Testing Aircraft Materials of Aerospace Materials & Processes

Answer 1

Right option is (a) 180°

Easiest explanation: The usual angle with which the test specimen should be bent in the bending test is 180°. This is over a pin that has the same diameter as that of the test specimen being used in the experiment. Cracking should be avoided.