New Mexico Pipe Fitter Journeyman (JPF) Practice Exam

Which of the following is NOT a basic pipe end finish?

1. Plain

2. Threaded

3. Grooved

4. Sealed

The correct answer is: Sealed

In terms of pipe end finishes, the basic types generally include plain, threaded, and grooved finishes. Each of these has specific applications and benefits in piping systems. A plain finish is smooth and designed for welding or joining, while a threaded finish allows for easy mechanical connections. A grooved finish provides a way to create a secure pipe joint with a grip, often used in fire protection and other applications that require rapid installation. Sealed, on the other hand, is not considered a basic pipe end finish. This term typically refers to an action taken to prevent leakage and is not a specific type of end finish for pipe ends itself. Sealing can occur after a joint is made or as part of the assembly process but does not constitute a pre-fabrication finish that defines how the pipe ends are designed for connection. Therefore, it falls outside the standard categories of pipe end finishes.