The electrode angle on a groove weld is half of the included angle. Which option is correct?

The electrode angle on a groove weld is half of the included angle. Which option is correct?

• A. 1/3 the included angle
• B. 1/2 the included angle
• C. equal to the included angle
• D. twice the included angle

Answer: (B)

In groove welding, you want the weld bead to sit centered between the two faces of the joint so filler material fuses evenly to both sides. Setting the electrode angle to half of the included angle achieves that balance, guiding the weld bead to travel mid‑way between the groove walls and deposit material across both toes. This symmetric deposition helps ensure proper penetration and fusion on both sides of the joint. If you angle it more toward one wall, deposition becomes uneven and fusion can suffer; if you angle it too little or too much (relative to half the included angle), the bead won’t cover both sides evenly. So the best choice is the electrode angle that is half of the included angle.