On a welding drawing, which element carries the joint design?

On a welding drawing, which element carries the joint design?

• A. The reference line
• B. The arrow
• C. The weld symbol
• D. The note box

Answer: (A)

The baseline reference line is where the joint design information is carried. The welding symbol is placed on this line and uses it as the canvas to convey how the parts are joined—type of weld, size, location, and other application details. In other words, the reference line anchors the joint design information that defines the weld configuration. The arrow simply marks where the joint is located, and the note box holds general instructions; neither of these alone defines the joint geometry.

The baseline reference line is where the joint design information is carried. The welding symbol is placed on this line and uses it as the canvas to convey how the parts are joined—type of weld, size, location, and other application details. In other words, the reference line anchors the joint design information that defines the weld configuration. The arrow simply marks where the joint is located, and the note box holds general instructions; neither of these alone defines the joint geometry.