Fixtures & Water Heaters第 75 / 120 题
An indirect waste pipe from a commercial ice machine is 1-1/2 inches in diameter and discharges into a floor sink. What is the minimum required air gap?
a.1 inch
b.2 inches
c.3 inches
d.1-1/2 inches
解析
The air gap for an indirect waste must be at least twice the effective diameter of the discharge pipe, so 2 times 1-1/2 inches equals 3 inches measured from the pipe outlet to the flood level rim of the receptor. 1 inch is only the absolute minimum air gap for very small pipes. 2 inches and 1-1/2 inches apply the wrong multiplier to the pipe size.
法律依据: IPC §802.2免费刷完整 120 道题库 — 无需注册。
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