AWS Certified Welding Inspector — FundamentalsWelding SymbolsMedium
A CWI is reviewing a blueprint for a pressure vessel. The welding symbol for a critical seam includes a groove weld symbol. Immediately to the right of the groove weld symbol, there is a number '45'. What does this number most likely represent in the context of a groove weld?
- AThe root opening of the groove.
- BThe groove angle in degrees.
- CThe weld length in millimeters.
- DThe depth of bevel.
Show answer & explanationAnswer & explanation
Correct answer: B. The groove angle in degrees.
For groove welds, a number immediately to the right and outside the groove weld symbol typically indicates the groove angle in degrees. This dimension is crucial for joint preparation.
Why the other options are wrong
- A. Root opening is typically shown inside the groove weld symbol or below it for specific joint types.
- C. Weld length is typically shown to the right of the entire weld symbol, not immediately adjacent to the groove symbol in this manner.
- D. Depth of bevel is often indicated as a dimension to the left of the groove symbol or implied by other dimensions.
Groove Weld Angle
The groove angle, or included angle of a groove weld, is commonly indicated by a numerical value (in degrees) placed immediately to the right of the groove weld symbol.
- Indicates the total angle of the groove opening.
- Expressed in degrees.
- Located to the right of the groove weld symbol.
Memory trick: Angle's to the Right of the Groove.