Cấp nước & Phân phốiCâu 41 / 360
An unprotected submerged inlet exists where a hose lies in a mop bucket filled with dirty water, connected to a faucet under pressure. What type of hazard does this arrangement represent?
a.A cross-connection that can cause backflow contamination of the potable supply
b.A safe air gap
c.A properly protected outlet
d.A drainage venting issue
Giải thích
A hose submerged in dirty water creates a direct cross-connection, allowing backflow to contaminate the potable supply if pressure drops or reverses. It is not an air gap because the outlet is submerged, it is not protected, and it is a supply cross-connection issue, not a drainage venting problem.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §603.0Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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