Core TradesCâu 186 / 700
In a seismic region, a tank-type water heater must generally be secured against movement with a MINIMUM of:
a.Two straps, one in the upper third and one in the lower third of the tank
b.One strap at the base only
c.A single strap at the middle of the tank
d.Adhesive pads under the tank feet
Giải thích
Codes in seismic areas require at least two straps, placed in the upper and lower thirds of the tank, to keep it from tipping and shearing gas or water lines during an earthquake. A single strap or base-only strap allows the top to swing, and adhesive pads are not adequate restraint.
Trích dẫn luật: 2025 CA Plumbing Code, Chapter 5 (Water Heaters)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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