New Mexico Pipe Fitter Journeyman (JPF) Practice Exam

What is the thinnest wall thickness available for a 1 inch condenser tube?

1. 0.025

2. 0.030

3. 0.035

4. 0.040

The correct answer is: 0.035

For a 1-inch condenser tube, the wall thickness standards generally apply to how the tube will withstand pressure and perform over time. The common specifications for condenser tubes, especially in HVAC systems, typically provide multiple options for wall thickness based on the application, with the thinnest walls being carefully calculated to balance performance and structural integrity. In this case, a wall thickness of 0.035 inches is often recognized as the thinnest available for a 1-inch condenser tube. This thickness is designed to meet standards that ensure the durability and efficiency needed in condenser applications while still allowing for proper heat exchange and transfer. Thinner walls may not provide the necessary strength or may be unsuitable for specific pressures and temperatures often encountered in condenser systems. This is why thicker options might be available, but a wall thickness of 0.035 inches is generally accepted as the minimum for effective operation.