In groove weld terminology, what does the groove angle denote?

• A. The included angle between the groove faces.
• B. The angle of the bevel relative to the work surface.
• C. The angle of the weld toe.
• D. The angle between the weld throat and base metal.

Answer: (A)

In groove weld terminology, the groove angle is the included angle between the groove faces. This angle is formed inside the joint by the two prepared surfaces that will be filled by the weld, and it determines how wide the groove is and how much filler metal and heat are needed for proper fill and penetration. It is not the bevel angle relative to the work surface, nor the angle at the weld toe, nor an angle between the weld throat and base metal.