Answer :
Final answer:
Yes, a high-pressure leak test should be performed if a section of more than 20 feet is added to an existing gas piping system. This test helps ensure the integrity of the system and detect any leaks.
Explanation:
Yes, a high-pressure leak test should be performed if a section of more than 20 feet is added to an existing gas piping system. This is to ensure the integrity of the system and to detect any leaks that may have occurred during installation or due to the addition of the new section.
A high-pressure leak test involves pressurizing the system to a specified level and then monitoring for any pressure drop over a certain period of time. This test is typically performed using air or an inert gas, and it allows for the detection of even small leaks in the system.
Other options mentioned in the question, such as the soap test and dial and soap test, may be used as complementary tests to visually identify leaks. However, a high-pressure leak test is the recommended method to ensure the overall integrity of the system.
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