AWS Welding Inspection and Testing Certification Practice Test

What type of weld is used to join two surfaces along a common edge?

1. Plunge weld

2. Edge weld

3. Fillet weld

4. Corner weld

The correct answer is: Edge weld

The type of weld used to join two surfaces along a common edge is known as an edge weld. In welding processes, an edge weld is specifically designed to connect the edges of two plates or surfaces. This results in a joint that is stronger and can effectively transmit loads along that edge. Edge welding typically requires careful preparation of the surfaces to be welded, ensuring they fit closely together, which optimizes the integrity and strength of the joint. In contrast, other types of welds have different applications: fillet welds are used primarily to join two surfaces at a right angle, while corner welds are designed for joining surfaces that form an inside corner. Plunge welds do not refer to a standard welding practice but might suggest a method in a specific context, which does not align with joining surfaces along a common edge. Understanding these distinctions helps clarify why edge weld is the correct choice in this scenario.