Final answer:
Groove welds made when the workpiece is vertical can be successfully created in all the mentioned positions (1F, 2F, 3F, 4F) depending on the manipulation of the welder and workpiece. The specific numbers represent different welding orientations, from flat to overhead.
Step-by-step explanation:
Groove welds made with the workpiece positioned vertically can be made in all the positions mentioned: 1F position, 2F position, 3F position, 4F position. The number and letter combinations refer to the position of the piece being welded: 'F' stands for fillet weld, and the numbers 1-4 refer to the orientation of the weld - flat (1), horizontal (2), vertical (3), and overhead (4).
When the workpiece is vertical, a vertical groove weld is performed (3F). This requires the welder to move the welding rod up or down along the joint. However, it's also possible to manipulate the position of the workpiece or the welding torch to create the effect of other positions, which allows for 1F, 2F, and 4F welds to be created as well. Remember that accuracy and control are vital in welding, especially in different positions.
Learn more about Groove Weld Positions