Core TradesCâu 28 / 700
A cleanout on a 4-inch drain line must have a MINIMUM clearance in front of it for rodding of about:
a.12 inches
b.18 inches
c.24 inches
d.30 inches
Giải thích
Cleanouts serving pipes 3 inches and larger require about 18 inches of clearance so a rodding tool can be inserted. 12 inches applies to smaller pipe, and 24 or 30 inches exceed the required minimum.
Trích dẫn luật: 2025 CA Plumbing Code (CPC) Chapter 7 (Cleanouts)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- For a 2-inch fixture drain, what is a common MAXIMUM developed length of the trap arm (from the trap weir to the vent)?
- The drainage fixture unit (DFU) value assigned to a plumbing fixture PRIMARILY represents:
- A horizontal branch drain must carry fixtures totaling 14 drainage fixture units. If a 2-inch pipe is rated for up to 6 DFU and a 3-inch pipe for up to 20 DFU, what is the MINIMUM pipe size?
- When strapping a tank-type water heater against seismic movement, the lower strap must be placed at least how far above the water heater's controls (thermostat/burner)?
- When sizing fuel-gas piping to appliances, the two governing factors are the total gas demand (Btu/hr) and:
- A sediment trap (drip leg) installed in the gas supply just ahead of an appliance functions PRIMARILY to:
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB General Building (B) Trade Examination · Quy trình kiểm tra