New Mexico Pipe Fitter Journeyman (JPF) Practice Exam

Which finish is considered the least common for piping?

1. Beveled

2. Threaded

3. Plain

4. Sealed

The correct answer is: Sealed

The least common finish for piping, particularly in the context of pipe fabrication and installation, is sealed. Sealing typically refers to applying a specific treatment or coating to the pipe in order to prevent leakage or corrosion, which is generally less common in standard piping applications. Most piping systems prioritize finishes that facilitate installation and connection, such as threading, beveling, or plain surfaces. Threaded finishes allow for easy connection between pipes and fittings, while beveled finishes are used for welding purposes, enabling a secure, strong joint. Plain finishes are often seen in pipe that will be installed without any additional fittings or specialized connections, providing a straightforward approach. Sealed finishes, on the other hand, are specialized and often reserved for particular applications where exposure to corrosive elements or the necessity for airtight seals is a concern. This makes sealed piping less ubiquitous in comparison to the more common finishes used across various piping projects.