Core TradesQuestion 31 of 700
A sediment trap (drip leg) installed in the gas supply just ahead of an appliance functions PRIMARILY to:
a.Catch moisture and debris before they reach the appliance controls
b.Reduce the gas pressure to the appliance
c.Vent excess gas to the outdoors
d.Serve as the required appliance shutoff valve
Explanation
The sediment trap is a short capped extension that collects dirt and condensate so they do not clog the appliance valve or orifices. It does not regulate pressure, vent gas, or replace the shutoff valve.
Law Reference: 2025 CA Plumbing Code (CPC) Chapter 12 (Fuel Gas)Practice all 700 questions free — no signup required.
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