Water Supply & DistributionCâu 45 / 120
An atmospheric vacuum breaker serves a fixture whose flood level rim is 34 in above the finished floor. What is the minimum height above the floor at which the vacuum breaker may be installed?
a.34 in
b.40 in
c.46 in
d.37 in
Giải thích
An atmospheric vacuum breaker must be at least 6 in above the flood level rim, so 34 + 6 = 40 in above the floor. Installing it at 34 in puts it level with the rim with no clearance at all. The 37 in answer uses a 3 in clearance and 46 in uses the 12 in clearance required for a pressure vacuum breaker above its highest outlet.
Trích dẫn luật: IPC §608.13Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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