Which two weld joint types require a broken arrow?

Which two weld joint types require a broken arrow?

• A. J-Groove and Single Bevel
• B. Butt Weld
• C. Lap Joint
• D. Fillet Weld

Answer: (A)

The symbol for a broken arrow is used to indicate that the weld feature involves a groove on the joint that will be welded from both sides or requires a root/back weld shown on the opposite face. J-Groove and Single Bevel are groove welds whose geometry creates a situation where you commonly need a weld on the opposite side to properly fill and penetrate the joint. That’s why a broken arrow appears with these joints in welding drawings. In contrast, butt welds, lap joints, and fillet welds are typically specified with standard symbols that describe single-face or straightforward multi-pass welds without needing the broken-arrow indicator for their common configurations.

The symbol for a broken arrow is used to indicate that the weld feature involves a groove on the joint that will be welded from both sides or requires a root/back weld shown on the opposite face. J-Groove and Single Bevel are groove welds whose geometry creates a situation where you commonly need a weld on the opposite side to properly fill and penetrate the joint. That’s why a broken arrow appears with these joints in welding drawings.

In contrast, butt welds, lap joints, and fillet welds are typically specified with standard symbols that describe single-face or straightforward multi-pass welds without needing the broken-arrow indicator for their common configurations.