New Mexico Pipe Fitter Journeyman (JPF) Practice Exam

A metallic ring joint must only be separated by what type of action?

1. Rotational force

2. Lateral pull

3. Axial pull

4. Twisting motion

The correct answer is: Axial pull

A metallic ring joint is designed to create a tight seal between two components, typically in piping systems. They rely on the compression of the ring to achieve this seal. When it comes to separating a metallic ring joint, axial pull is the required method of action. This means applying a force that is aligned with the axis of the components being separated. Using axial pull ensures that the forces are applied directly in line with the joint, which minimizes the risk of damaging the ring or the components it connects. This method provides a controlled means of separation without generating shear forces that could compromise the integrity of the joint. In contrast, other types of actions, like lateral pull or twisting motion, are not appropriate as they can create uneven stresses or misalignments, which may result in damage or compromised sealing capability. Rotational forces can also cause issues with the joint integrity. Therefore, axial pull is the only suitable method to safely and effectively separate a metallic ring joint without risking damage to the components involved.