Concavity of the root surface is detected by ____.
A) x-ray testing
B) visual inspection
C) destructive testing
D) cutting a cross-section of the weld

Question

Quizplus · Accepted Answer

Concavity of the root surface cannot be accurately detected by x-ray testing alone since the angle of the x-ray beam may not be perpendicular to the root surface. Destructive testing and cutting a cross-section of the weld can provide accurate results but are also invasive and may damage the weld. Visual inspection, on the other hand, can quickly and easily detect concavity by observing the appearance of the root surface.

Concavity of the Root Surface Is Detected by ____