Surface PreparationCâu 21 / 100
When dry-cutting or grinding concrete during prep generates dust, what airborne hazard is of concern under Cal/OSHA?
a.Lead only
b.Asbestos only
c.Respirable crystalline silica
d.Carbon monoxide
Giải thích
Cutting, grinding, or abrading concrete and masonry releases respirable crystalline silica, which can cause silicosis. Cal/OSHA requires engineering controls such as water suppression or vacuum dust collection and, when needed, respiratory protection. This applies to prep work as well as demolition.
Trích dẫn luật: Cal/OSHA Title 8Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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