Installation第 38 / 110 题
What is the purpose of a sediment trap (drip leg) installed near a gas appliance?
a.To regulate gas pressure
b.To vent excess gas
c.To catch moisture and debris before they enter the appliance control valve
d.To measure gas flow
解析
A sediment trap, or drip leg, is a short vertical section that captures moisture, rust, and debris carried in the gas stream before they reach the appliance gas valve. This protects the valve and burner orifices from clogging. The CMC requires it on many appliance connections.
法律依据: 2022 California Mechanical Code (CMC)免费刷完整 110 道题库 — 无需注册。
同考点相关题目
- What is the function of the reversing valve in a heat pump?
- A package unit differs from a split system in what way?
- Gas piping for a furnace must be sized primarily to do what?
- Before a new furnace's electrical connections are energized, the technician should verify what first?
- Flexible duct connectors at the air handler are commonly used to accomplish what?
- Why should supply and return ducts be sealed with mastic or listed tape at joints?