Which description best explains an overlap defect in welding?

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Multiple Choice

Which description best explains an overlap defect in welding?

Explanation:
Overlap defects happen when the weld metal spills over the edge of the joint and sits on the plate surface instead of properly fusing to the base metal. This creates an overhang and can weaken the joint or trap slag. The description that best matches this is that the weld metal overlaps the plate surface. The other scenarios describe different situations: a 90-degree weld angle is about geometry, not an overlap; a flat plate surface is normal, not a defect; and a completely fused weld indicates good fusion, not an overlap.

Overlap defects happen when the weld metal spills over the edge of the joint and sits on the plate surface instead of properly fusing to the base metal. This creates an overhang and can weaken the joint or trap slag. The description that best matches this is that the weld metal overlaps the plate surface.

The other scenarios describe different situations: a 90-degree weld angle is about geometry, not an overlap; a flat plate surface is normal, not a defect; and a completely fused weld indicates good fusion, not an overlap.

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