Question

Corrosion of materials results in ___________ of fatigue limit.

(a) reduction

(b) increment

(c) double

(d) satisfaction

I had been asked this question at a job interview.

This interesting question is from Aircraft Materials in division Testing Aircraft Materials of Aerospace Materials & Processes

Answer 1

Correct option is (a) reduction

To explain I would say: Corrosion of a material is not a desirable quality. This is because even a small amount of it can cause a reduction of fatigue limit. Even flaws like lack of uniform cross-section in the specimen can have the same effect.