Visual Testing (VT) Practice Exam 2025 – Comprehensive All-in-One Guide for Exam Success!

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What is a protrusion or rollover of weld metal beyond the toe or root called?

Overlap.

The phenomenon where weld metal extends beyond the toe or root is referred to as "reinforcement." Reinforcement occurs when there is an excess of weld material in the joint area, creating a protruding surface. This is often desirable in various welding applications as it can enhance the structural integrity of the weld joint. While overlap, undercut, and overfill represent different welding defects or characteristics, reinforcement specifically pertains to the intentional addition of weld metal that may improve the strength or appearance of the joint. Understanding this distinction is critical in weld preparation and evaluation in visual testing contexts.

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Undercut.

Reinforcement.

Overfill.

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