Question

Cracks appear in weld and base metal when the localized stresses exceed the ——––––––––– strength of a metal.

• A. Shear
• B. Compressive
• C. Ultimate
• D. Yield

Hint:

Always design welds with adequate strength to avoid exceeding the yield strength of the material, which can cause cracks under stress.

Answer 1

The Correct Option is D

When localized stresses exceed the yield strength of a material, plastic deformation occurs, potentially leading to cracks. In welding and metalworking, controlling these stresses is critical to preventing defects in the weld and base metal.