Thoát nước, Nước thải & Thông hơiCâu 119 / 360
A residential clothes washer standpipe is assigned what DFU value and minimum trap size?
a.1 DFU, 1-1/2 inch
b.3 DFU, 2 inch
c.2 DFU, 2 inch
d.2 DFU, 3 inch
Giải thích
A domestic clothes washer standpipe is assigned 2 DFU and requires a minimum 2 inch trap and standpipe to handle its rapid pump-out discharge. A 1-1/2 inch trap is too small for a washer, and neither 1 DFU nor 3 inch matches the code value for a residential washer.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §702.0 (Table 702.1)Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The size of a building drain or sewer:
- A vent that terminates through a side wall must be located at least how far from a property line and from openings such as windows?
- A trap primer is installed on a floor drain trap in order to:
- A horizontal branch serves two water closets (3 DFU each), two lavatories (1 DFU each), and two showers (2 DFU each). What is the minimum branch size?
- A plumber terminates a vent pipe through a residential roof that is used only for weather protection. What is the minimum height the vent must extend above the roof surface?
- A vent penetrates a roof deck that is also used as a sun deck or walking surface. How high must the vent terminal extend above that roof?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB C-36 Plumbing Trade Examination · Quy trình kiểm tra