G2 Gas Fitter Practice Exam

What pressure must propane piping of 200ft in length or less be tested at?

1. 25 psig

2. 50 psig

3. 75 psig

4. 100 psig

The correct answer is: 50 psig

In the context of gas installations, the pressure testing of propane piping is crucial to ensure safety and integrity. For propane piping systems that are 200 feet in length or less, industry standards typically require a pressure test at 50 psig. This pressure level is selected because it is sufficient to detect any leaks in the system while still being within the safety limits of the materials used. Testing at this pressure helps ensure that the system can safely handle the operational pressures once it is in service. By using 50 psig as the testing pressure, gasfitters can confidently identify any potential weaknesses or points of failure in the piping system before it becomes operational. While the other pressures listed (25 psig, 75 psig, and 100 psig) may be used in other contexts or installations, 50 psig is the established standard for the specified length of propane piping. This ensures compliance with safety regulations and best practices in the industry.