2025 Complete Unitized Structural Body Repair Practice Test

MIG welding wire, which stands for Metal Inert Gas welding, is designed to match specific American Welding Society (AWS) standards that dictate the composition and quality of the electrode used. The correct choice includes AWS ER70S-6 and AWS ER70S-7 as these are common classifications of welding wires used in various applications.

AWS ER70S-6 and AWS ER70S-7 are both types of solid mild steel electrodes that are suitable for a wide range of welding tasks, especially in the automotive and construction industries. They contain specific alloying elements that enhance weld quality and performance, making them ideal for joining materials that may have varying levels of contamination or rust.

These standards guide the selection of appropriate welding materials to ensure reliable and effective welds, which is critical in structural repairs where safety is paramount. The other options, while they reference electrodes, do not include the most commonly utilized wires in MIG welding, which diminishes their relevance to standard practices in this field.