Which of the following is not one of the four variables to deposit a successful weld?

• A. Distance
• B. Angle
• C. Speed
• D. Voltage

Answer: (D)

The important factors that directly control how much metal you deposit are arc length (distance from the electrode to the work), the angle of the electrode, the travel speed, and the welding current. These four determine heat input and how the molten metal transfers to the weld pool, which sets the bead size and penetration. Voltage influences arc stability and overall arc characteristics, but in this framework it isn’t counted as one of the four variables that control deposition. So while voltage can affect how the arc behaves, the deposition amount is governed mainly by distance, angle, speed, and current.