Gas Fitter Practice · Question
In a closed combustion system, what is the primary role of the combustion air intake pipe?
The combustion air intake pipe in a closed system draws fresh air from outdoors directly into the combustion chamber, ensuring a dedicated air supply for comple
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Question: In a closed combustion system, what is the primary role of the combustion air intake pipe?
Answer options:
- To dilute flue gases ✅ To supply air for combustion
- To cool the appliance casing
- To exhaust condensate
Correct answer: To supply air for combustion
Explanation: The combustion air intake pipe in a closed system draws fresh air from outdoors directly into the combustion chamber, ensuring a dedicated air supply for complete combustion.
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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?
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