Drainage, Waste & VentCâu 16 / 120
A 6 in horizontal drainage line requires a cleanout. What is the minimum size of the cleanout opening?
a.4 in
b.3 in
c.5 in
d.6 in
Giải thích
A cleanout must be the same nominal size as the pipe it serves for pipe up to 4 in, and pipe larger than 4 in requires a cleanout of at least 4 in. A 6 in cleanout is larger than the code minimum, and 3 in and 5 in do not match either the same-size rule or the 4 in cap.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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