The crack in an part usually occur only on one side of the cross-section of the part when a part is subjected to ____.

The crack in an part usually occur only on one side of the cross-section of the part when a part is subjected to ____.

a. reverse bending or axial load combined with bending
b. axial stress
c. rotating bending stress
d. none of the above

Correct Answer : b. axial stress

Explanation :

In reverse bending crack occurs on both sides of the cross-section and in rotating bending stress crack initiates from two opposite directions of the part. Crack in an part usually occur only on one side of the cross-section of the part when a part subjected to only axial stress.