Gas Fitter Practice · Question
What type of pipe material is NOT permitted for underground natural gas piping in residential applications?
PVC (Polyvinyl chloride) is not approved for underground gas piping due to its susceptibility to degradation and potential for leaks.
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Question: What type of pipe material is NOT permitted for underground natural gas piping in residential applications?
Answer options:
- Polyethylene (PE)
- Steel
- Copper ✅ PVC
Correct answer: PVC
Explanation: PVC (Polyvinyl chloride) is not approved for underground gas piping due to its susceptibility to degradation and potential for leaks.
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- What is the maximum allowed pressure for a propane system supplying a residential appliance?
- When installing a gas outdoor appliance, what is the minimum required clearance from an opening into a buildin
- Which code specifies the requirements for the installation of propane-burning appliances and equipment?
- What is the maximum allowed pressure drop for gas piping within a building, from the point of delivery to the
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