Leaving a backing strip on a weld may cause it to fail due to ____.
A) wear and tear on the backing strip
B) decreased penetration and increased burn-through
C) concentrations of stresses along the backing strip
D) chemical reactions between silicon dioxide in the weld and the backing strip adhesive

Question

Quizplus · Accepted Answer

Concentrations of stresses along the backing strip can lead to failure in a weld. This is because the backing strip can create areas where stresses are higher, potentially leading to cracks or other failures in the weld over time.

Leaving a Backing Strip on a Weld May Cause It