For a surfacing weld, which dimension is found on its reference line?

For a surfacing weld, which dimension is found on its reference line?

• A. The length.
• B. The width.
• C. The height.
• D. The area of surface covered.

Answer: (C)

The amount of material added in a surfacing weld is shown as the height on the reference line. This height represents how far the deposited weld metal rises above the original surface, i.e., the buildup thickness needed to restore or achieve the required surface thickness. The length and width describe how far the weld runs along and across the joint, and the area is a derived measure of coverage, not the primary dimension shown on the reference line for surfacing. So the height is the dimension that the reference line conveys for a surfacing weld.

The amount of material added in a surfacing weld is shown as the height on the reference line. This height represents how far the deposited weld metal rises above the original surface, i.e., the buildup thickness needed to restore or achieve the required surface thickness. The length and width describe how far the weld runs along and across the joint, and the area is a derived measure of coverage, not the primary dimension shown on the reference line for surfacing. So the height is the dimension that the reference line conveys for a surfacing weld.