Which welding position is designated by 4G?

Which welding position is designated by 4G?

• A. Flat
• B. Overhead
• C. Horizontal
• D. Vertical

Answer: (B)

Welding positions for plates follow a sequence from flat to overhead, based on how gravity affects the molten metal. In this system, the overhead position is the one where the joint is on the underside of a horizontal plate and you perform the weld from above. Gravity pulls the molten metal downward, making control and technique more demanding than in other positions, which is why overhead is designated as the 4G position. So the correct choice is the overhead position. The other terms describe the other orientations—flat on the top surface, horizontal along a plane, and vertical along a vertical plane.

Welding positions for plates follow a sequence from flat to overhead, based on how gravity affects the molten metal. In this system, the overhead position is the one where the joint is on the underside of a horizontal plate and you perform the weld from above. Gravity pulls the molten metal downward, making control and technique more demanding than in other positions, which is why overhead is designated as the 4G position. So the correct choice is the overhead position. The other terms describe the other orientations—flat on the top surface, horizontal along a plane, and vertical along a vertical plane.