What information does a welding symbol convey on a drawing?

What information does a welding symbol convey on a drawing?

• A. The welding method used
• B. The color of the weld filler
• C. The base metal grade
• D. The weld type, size, location, and any supplementary requirements on the reference line and arrow

Answer: (D)

Welding symbols are a compact way to communicate how the joint should be welded. They tell you the weld type to use (such as fillet or groove), the size of the weld (for fillets, the leg length; for groove welds, the throat or groove dimensions), and where the weld goes (on the side of the joint indicated by the arrow or on both sides). They also carry any extra instructions placed on the reference line or arrow—like finishes, special welding requirements, or field vs. shop requirements. The symbol does not specify the welding process (MIG, TIG, etc.), the color of any filler, or the base metal grade, which is why those options aren’t correct.

Welding symbols are a compact way to communicate how the joint should be welded. They tell you the weld type to use (such as fillet or groove), the size of the weld (for fillets, the leg length; for groove welds, the throat or groove dimensions), and where the weld goes (on the side of the joint indicated by the arrow or on both sides). They also carry any extra instructions placed on the reference line or arrow—like finishes, special welding requirements, or field vs. shop requirements. The symbol does not specify the welding process (MIG, TIG, etc.), the color of any filler, or the base metal grade, which is why those options aren’t correct.