SafetyCâu 100 / 110
A plumber replaces piping in a building constructed before 1978 and disturbs old painted surfaces and solder. What two legacy hazards require specific precautions?
a.Asbestos and radon
b.Silica and mold
c.Formaldehyde and PCBs
d.Lead (paint and old solder) and asbestos (pipe insulation and old sheet materials)
Giải thích
Pre-1978 buildings commonly contain lead paint and lead solder plus asbestos in pipe insulation, transite, and floor and sheet materials, both of which require specific handling, containment, and disposal rules. Lead solder was banned for potable use in 1986, and asbestos insulation must not be disturbed without proper controls. Both are serious long-term health hazards.
Trích dẫn luật: EPA/OSHA leadLuyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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