Installation第 51 / 110 题
Return air for a gas furnace must not be taken from which location?
a.A hallway
b.A garage or other space where it could pick up combustion products or flammable vapors
c.A conditioned bedroom
d.A central living room
解析
Drawing return air from a garage, furnace room, or similar space risks pulling in carbon monoxide, fuel vapors, or other contaminants and distributing them through the home. The CMC prohibits return openings in these locations. Return air must come from conditioned, safe spaces.
法律依据: 2022 California Mechanical Code (CMC)免费刷完整 110 道题库 — 无需注册。
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