What is the 8 hour time weighted average

Reference no: EM133337672

The table below gives the noise exposures over the course of a day for operators in a fabrication shop. For each sound exposure, determine the allowable duration and answer the questions that follow. YOu will enter your answers in the sections that follow for each question.

Sound Level	Allowed exposure per day (h)	Actual Exposure
106		0.5
96		2
92		3
91		4

a) What is the noise dose for the exposures?

b) What is the 8-hour time-weighted average (TWA) sound level?

c) If the employees wear earplugs that are rated at 20-dBA noise reduction rating (NRR), what is the new noise exposure?

d) Would the new TWA exposure level be acceptable?

Question 1: If the employees wear earplugs that are rated at 20-dBA noise reduction rating (NRR), what is the new noise exposure?

Question 2: What is the 8 hour time weighted average (TWA) for these exposures?

Question 3: What is the noise dose for the exposures in the above table?

Reference no: EM133337672

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