answer the questions of noise measurements

Reference:

PPT slides

https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.95

https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.95AppA

1-Calculation: please determine how many times of sound power will change (increase or decrease) when noise level from 87.8 dB is decreased to 84.8 dB after you apply an engineering control. Show your calculation process and include appropriate unit.

2-What is the noise dose if noise TWA is 90 dB?

3-Using Google Scholar or visit government websites (ex. NIOSH) to identify a peer-reviewed research paper, in which you can find the specific noise level in the industry (or a type of facility). Please give me 1) the dB level, 2) specify what industry / facility they researched, and 3) the reference source in APA format.

4-Under which Standard Number can you find in the OSHA regulation regarding occupational noise exposure for general industry, and for construction industry?

5-What’s the dB exchange rate used by ACGIH and NIOSH, but not OSHA?

6-What is the noise dose if noise TWA is 95 dB?

7-List the key components of hearing conservation program required by OSHA.

8-What’s ACGIH TLVs for noise TWA 8 hours?

9-Calculation: A construction worker was exposed to 85 dBA for 4 hrs, 92 dB for 2 hrs, 96.4 dB for 2 hrs. Was the worker over-exposed to noise? Show your calculation process and include appropriate unit.

10-Calculation: If employees worked in a manufacturing facility with 93.5 dBA for 8 hrs, what was their dosimeter reading result in noise dose? Show your calculation process and include appropriate unit.

11-Calculation: please determine how many hours of exposure will be allowed if noise level is 98.6 dBA. Show your calculation process and include appropriate unit.

12-What assumption(s) have OSHA made when developing the standard on permissible noise exposures?

13-Calculation: You used noise dosimeter to monitor workers noise exposure. What was the TWA if the noise dosimeter showed 95%? Was the exposure in compliance? Show your calculation process and include appropriate unit.

14-Calculation: please determine the sound power level if you have a fan producing a sound power of 5 W. Show your calculation process and include appropriate unit.

15-What is the noise dose if noise TWA is 85 dB?

16-Calculation: please determine the maximum noise level will be allowed if your employers work a 10 hours shift. Show your calculation process and include appropriate unit.

17-What’s OSHA noise TWA for 8 hours?


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