🔍 Key Concepts

• Review the difference between a single bevel groove weld and a double bevel groove weld in standard welding symbols (AWS/American Welding Society). • A double bevel groove weld has one member whose edge is beveled from both sides; the opposite member has a square (unbeveled) edge. • In the cross‑section, a double bevel groove weld will look like weld metal filling an hourglass‑shaped or double‑tapered groove on one side of the joint, with the other plate edge remaining straight.

💭 Think About

• First, identify which sketches show a groove on only one of the two members, rather than both. That rules out double‑V or double‑U groove welds. • Among those, look for the one where the groove exists on both sides of the same member (top and bottom), not just one face. Does the weld metal form a double‑tapered or hourglass‑type section? • Compare how far the weld metal extends: is it filling a groove that starts wide at both surfaces and narrows toward the middle of the same plate edge? That’s the visual clue for a double bevel groove weld.

✅ Before You Answer

• Make sure the joint does not show both plates beveled toward each other; that would be a double‑V groove weld, not a double bevel. • Confirm that only one plate edge is beveled from both sides while the opposite plate edge remains square. • Verify that the weld metal fills the double‑tapered groove from both the top and bottom sides, creating the characteristic hourglass‑type profile of a double bevel groove weld.