Heavy Equipment Operator Certification Exam Prep · Question
What is the minimum level of hearing protection required for a heavy equipment operator working in an environment where noise exposure averages 95 dBA?
Provincial OHS regulations (e.g., CSA Z94.2-14) typically require hearing protection that reduces the noise exposure level to below 85 dBA (average over an 8-ho
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Question: What is the minimum level of hearing protection required for a heavy equipment operator working in an environment where noise exposure averages 95 dBA?
Answer options: ✅ Hearing protection with a Noise Reduction Rating (NRR) sufficient to reduce exposure below 85 dBA.
- Standard earplugs, regardless of NRR.
- No specific hearing protection is needed.
- Only over-the-ear muffs are acceptable.
Correct answer: Hearing protection with a Noise Reduction Rating (NRR) sufficient to reduce exposure below 85 dBA.
Explanation: Provincial OHS regulations (e.g., CSA Z94.2-14) typically require hearing protection that reduces the noise exposure level to below 85 dBA (average over an 8-hour shift) when the ambient noise exceeds this threshold.
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