The amount of concavity in a root surface can be given as ____.
A) a percentage of the total weld width
B) the smallest number and smallest size of spots per inch of weld
C) a percentage of the effective throat
D) a percentage of the width at the narrowest point

Question

Quizplus · Accepted Answer

The amount of concavity in a root surface can be given as a percentage of the effective throat. The effective throat is the minimum thickness of metal that exists between the weld root and the weld face. Therefore, option C is the correct answer. Options A, B, and D are not relevant to describing the amount of concavity in a root surface.

The Amount of Concavity in a Root Surface Can Be