Thoát nước, Nước thải & Thông hơiCâu 82 / 360
The use of an S-trap on a fixture is:
a.Permitted for all fixtures
b.Prohibited
c.Permitted if a deep seal is used
d.Permitted for outdoor fixtures
Giải thích
S-traps are prohibited because the downward outlet directly below the trap makes the seal prone to self-siphonage. Fixtures must use a properly vented P-trap instead. A deeper seal or an outdoor location does not make an S-trap acceptable.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §1002.0Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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- The maximum vertical distance between a fixture outlet and the trap weir must not exceed:
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