Question: 3 . A worker is exposed, due to different level of noise by machines, 9 5 db for 4 hrs , 1 0 5 db

3. A worker is exposed, due to different level of noise by machines, 95 db for 4 hrs,105 db for 0.75 hr and 85 db for 3.5 hrs. What is the total exposure for the entire period? What are your recommendations?

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