Question 1022 of 234 · California Wastewater Operator Exam
A noise survey shows an operator is exposed to 90 decibels over an 8-hour shift. The best control is
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Correct answer to question 1022
- A: an effective hearing protection program including protective devices and noise reduction at the source
Explanation
When sound levels exceed Table N-1 (90 dBA for 8 hours), feasible administrative or engineering controls must be used first. If they fail to bring levels within the table, personal hearing protection must be provided and used.
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