SafetyCâu 526 / 700
Workers on a jobsite are exposed to loud equipment noise throughout the shift. At approximately what average noise level does Cal/OSHA require a hearing conservation program to begin?
a.About 65 dBA
b.About 85 dBA over an 8-hour average
c.About 120 dBA
d.Noise level does not matter
Giải thích
Cal/OSHA requires a hearing conservation program, including monitoring, hearing protection, and audiometric testing, when noise exposure reaches an 8-hour time-weighted average of about 85 dBA. Option b is correct. 65 dBA (a) is normal conversation and not hazardous, waiting until 120 dBA (c) would be far too late, and noise level always matters for hearing protection (d).
Trích dẫn luật: Cal/OSHA Title 8, General Industry Safety OrdersLuyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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