Cấp nước & Phân phốiCâu 47 / 360
Why must dissimilar metals, such as copper tube connecting to galvanized steel pipe, be joined with a dielectric fitting?
a.To increase flow
b.To reduce noise
c.To prevent galvanic (electrolytic) corrosion at the joint between dissimilar metals
d.To allow threading
Giải thích
Joining dissimilar metals directly promotes galvanic corrosion, so a dielectric fitting is used to electrically separate them and prevent that corrosion. Dielectric fittings are not installed to increase flow, reduce noise, or allow threading.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §605.0Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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