AWS Welding Inspection and Testing Certification Practice Test

Which welding process is most associated with joining two flat pieces of metal at right angles?

1. Fillet weld

2. Butt weld

3. Spot weld

4. Seam weld

The correct answer is: Fillet weld

The correct answer is fillet weld, which is primarily used for joining two flat pieces of metal that are positioned at right angles to each other. This type of weld is characterized by a triangular cross-section and is commonly employed in corner, edge, and t-joints. The unique shape of a fillet weld allows for effective fusion at the joint, ensuring strength and structural integrity at the points of intersection. In contrast, a butt weld is utilized for connecting two pieces of material end-to-end, not at right angles, which makes it less suitable for the given scenario. Spot welds are typically used in sheet metal applications to join overlapping sheets at specific points, rather than continuous edges. Seam welds involve the continuous joining of materials along a seam, typically in a straight line, and are not specifically designed for right-angle joins. Thus, a fillet weld is specifically tailored to meet the needs of joining flat materials at right angles, making it the appropriate choice.