What is important to maintain when using the weave technique in vertical position?

• A. Good arc length
• B. Even filler deposition
• C. Consistent travel speed
• D. Clean base metal before welding

Answer: (A)

In vertical weaving, controlling how much heat you put into the work by keeping a steady arc length is essential. The distance from the electrode to the weld pool directly affects how hot the arc is and how the molten metal behaves as you move the weave. If the arc is too long, the arc becomes unstable, the pool can sag, and the bead may turn uneven or porously deposited. If the arc length is kept at a consistent, moderate distance, heat input stays steady, the molten metal flows more predictably, and the filler is deposited evenly along the weave, giving a uniform bead with proper fusion. While keeping the base metal clean and maintaining good travel speed helps overall, arc length most directly controls pool stability and bead quality in vertical weaving.