Gas Fitter Practice · Question
What is the maximum allowed pressure for natural gas inside a residential building, unless specifically approved otherwise by the authority having jurisdiction?
CSA B149.1 generally limits natural gas pressure inside residential buildings to a maximum of 2 PSI (14 kPa) for safety reasons.
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Question: What is the maximum allowed pressure for natural gas inside a residential building, unless specifically approved otherwise by the authority having jurisdiction?
Answer options:
- 0.5 PSI (3.5 kPa) ✅ 2 PSI (14 kPa)
- 5 PSI (35 kPa)
- 10 PSI (70 kPa)
Correct answer: 2 PSI (14 kPa)
Explanation: CSA B149.1 generally limits natural gas pressure inside residential buildings to a maximum of 2 PSI (14 kPa) for safety reasons.
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- When installing a gas outdoor appliance, what is the minimum required clearance from an opening into a buildin
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