Đường ống gaCâu 265 / 360
Gas piping must pass through a concrete slab. What is the correct approach?
a.Any bare steel pipe may be embedded directly in the concrete
b.Plastic pipe is required inside the slab in all cases
c.The pipe may simply rest in the trench with no protection
d.Protect the piping against corrosion and physical damage, typically sleeving or protective coating per code
Giải thích
Where gas piping passes through or under a concrete slab it must be protected from corrosion and physical damage, commonly with an approved coating, wrap, or a sleeve, following the fuel gas code. Bare steel embedded in concrete can corrode over time. The exact method depends on the material and location, so follow the adopted code and manufacturer instructions.
Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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