Class 5 Boiler Practice Exam

Which of the following is NOT considered a type of weld?

1. Fillet

2. Butt

3. Socket

4. Lap

The correct answer is: Fillet

The correct identification of which option is not considered a type of weld can be attributed to understanding the definitions and classifications of welds in engineering contexts. A fillet weld, butt weld, and lap weld are all recognized as types of welds, each serving specific purposes in joining metal components. A fillet weld is a joint made at a right angle to connect two pieces, typically used for corners and edges, while a butt weld joins two pieces together end-to-end, and a lap weld connects them overlapping each other. However, a socket is not categorized as a type of weld; rather, it refers to a joint or fitting that allows for attachment but does not involve welding in the same manner as the other options. Socket joints are typically used in conjunction with pipes and fittings but do not describe a welding technique themselves. Understanding the specific characteristics of these terms is essential for distinguishing between actual welding types and related concepts in mechanical and structural assembly.