Core TradesCâu 191 / 700
What is the MINIMUM drain size generally required for a water closet (toilet)?
a.1-1/2 inches
b.2 inches
c.3 inches
d.4 inches
Giải thích
A water closet requires a minimum 3-inch drain to carry its solid waste discharge. 1-1/2 and 2 inches are used for smaller fixtures such as lavatories and showers, and 4 inches, while acceptable, is larger than the required minimum for a single toilet.
Trích dẫn luật: 2025 CA Plumbing Code, Chapter 7 (Sanitary Drainage)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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