CAOHC
Lindenwood University
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CAOHC EXAM with Questions and Correct Answers
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---25March 20242023/2024A+
- Unprotected exposure to hazardous noise causes: - Temporary and/or permanent hearing 
loss 
Temporary and/or permanent tinnitus (ringing, buzzing in ears) 
Occupational noise sources - Agriculture, mining, railroads 
• Manufacturing - largest hazardous noise-exposed population 
• Machinery, weapons, vehicles, tools, equipment 
Noise-Induced Illness: - hearing loss and tinnitus 
Occurs gradually, over time, from repeated exposures 
Noise-Induced Injury: - hearing loss and tinnitus 
Occurs fro...
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