InstallationCâu 51 / 110
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
Giải thích
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.
Trích dẫn luật: 2022 California Mechanical Code (CMC)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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