A pressure test applies pressure of not less than ____ times the proposed maximum working pressure of the interior piping, but in no case less than ____.

A pressure test applies pressure of not less than ____ times the proposed maximum working pressure of the interior piping, but in no case less than ____.

• A. 1 1/2 times; 3psig
• B. 2 times; 5psig
• C. 1 times; 1psig
• D. 1 3/4 times; 4psig

Answer: (A)

When testing interior propane piping, you want a pressure that is clearly above what the system will normally experience to reveal any leaks or weak joints. The standard rule is to apply a test pressure of not less than 1.5 times the proposed maximum working pressure, with a floor of at least 3 psig. This combination ensures a robust test: it provides enough stress to expose issues, while not being so high as to create unnecessary risk or damage. So the correct approach is to use 1.5 times the maximum working pressure, but never less than 3 psig. The other options either push the test pressure too high or too low or omit the minimum floor, which is why they aren’t the correct choice.

When testing interior propane piping, you want a pressure that is clearly above what the system will normally experience to reveal any leaks or weak joints. The standard rule is to apply a test pressure of not less than 1.5 times the proposed maximum working pressure, with a floor of at least 3 psig. This combination ensures a robust test: it provides enough stress to expose issues, while not being so high as to create unnecessary risk or damage.

So the correct approach is to use 1.5 times the maximum working pressure, but never less than 3 psig. The other options either push the test pressure too high or too low or omit the minimum floor, which is why they aren’t the correct choice.