In what positions can GMAW be welded?

GMAW, or Gas Metal Arc Welding, is a versatile welding process that can be performed in various positions. The capability to weld in all positions—flat, horizontal, vertical, and overhead—allows the welder to complete a variety of projects and adapt to different structural requirements. This flexibility is crucial for fabricating components in situations where access may be limited or the orientation of the workpiece varies.

Welding in the flat position is efficient and commonly used for speed and ease. Horizontal and vertical positions are important for structural steel fabrication, where joining different pieces together might require welding at angles. The overhead position, while more challenging due to gravity, is also manageable with proper technique and control of the weld pool. Understanding that GMAW can be applied in all these scenarios underlines its practical use across different construction and manufacturing environments.

This comprehensive applicability is what makes option C the correct choice for the question about the positions in which GMAW can be welded.