The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.

Q. The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.

  1. 60
  2. 90
  3. 105
  4. 120

Answer: Option 2

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