Corrosion of materials results in ___________ of fatigue limit.

corrosion-of-materials-results-in-of-fatigue-limit

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

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.