Arizona Plumbing Practice Exam

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What is the required test time for a low pressure gas line that has a volume of 1500 cubic feet?

1 hour
1 1/2 hours
2 hours
2 1/2 hours

The correct answer is: 1 1/2 hours

The required test time for a low pressure gas line, particularly one with a volume of 1500 cubic feet, is determined based on established safety regulations and practices. For low pressure gas lines, testing typically requires a duration that allows for adequate monitoring and assessment of potential leaks. A test duration of 1 1/2 hours provides a balance between ensuring the integrity of the gas line and practical time management during the diagnostic process. The rationale behind this specific timeframe is that it allows sufficient time for the pressure to stabilize and for any minor fluctuations to be observed, confirming that the system is secure and reliable. This duration is commonly accepted in industry standards for low pressure systems to ensure that any leaks or issues can be detected without unnecessary complications or hazards.