Drainage, Waste & VentCâu 32 / 120
A bathroom group is arranged so that the lavatory drain also serves as the vent for the bathtub downstream of it. What is this arrangement called, and what limits it?
a.A relief vent, limited to one fixture
b.A yoke vent, limited to stacks over 10 stories
c.A wet vent, limited to the fixtures and sizes the code specifically allows
d.A loop vent, limited to island fixtures only
Giải thích
A drain that carries waste from one fixture while also serving as the vent for other fixtures is a wet vent, and the code allows it only for the specific fixture combinations and minimum pipe sizes listed for wet venting. A relief vent is a dry vent that connects drain and vent systems, a yoke vent relieves pressure on tall stacks, and a loop vent is the island fixture arrangement.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A 4 in horizontal drain is sized to carry a load of drainage fixture units. Which pipe run carries the greatest DFU load for a given diameter?
- A branch serves one water closet at 4 DFU, one lavatory at 1 DFU, one bathtub with shower at 2 DFU, and one kitchen sink at 2 DFU. What is the total DFU load on that branch?
- A horizontal fixture branch serves three lavatories only. Any branch that receives the discharge of a water closet must be at least what size?
- A 1-1/4 in trap arm serves a small lavatory. The vent is located 3 ft of developed length from the trap weir. What is the correct evaluation?
- A row of five lavatories on a common horizontal branch in a public restroom is vented by a single vent connected between the last two fixture drains. What type of venting is this?
- An 8 in building drain is proposed at 1/16 in per ft over a 200 ft run. What is the fall, and is that slope permitted?
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