Thiết bị & Bình nước nóngCâu 208 / 360
The minimum required air gap between a fixture's water supply outlet and the fixture's flood-level rim protects against:
a.water hammer
b.thermal expansion
c.backflow of contaminated water into the potable supply
d.scalding
Giải thích
An air gap is a vertical space between the supply outlet and the flood-level rim of a fixture that prevents contaminated water from being siphoned back into the potable system. It is the most reliable backflow protection. The minimum gap depends on the outlet size and nearby walls.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §603.3.1Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The minimum number of plumbing fixtures required for a building is determined primarily by:
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