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Engineering, 06.04.2020 16:27 kenzierosa
Two wastewater treatment plant workers (one male and one female) are exposed to hydrogen sulfide in confined spaces in the treatment plant. The average temperature in the wet well is 25oC and the atmospheric pressure is 101.325 kPa. The recommended time weighted average air concentration for occupational exposure to hydrogen sulfide is 15 mg/m3. This concentration is based on an assumption that the individual is generally healthy and is exposed for 8 hours per day, 5 days per week, 50 weeks per year, over a working lifetime (that is from age 18 to 65 years). Assuming average body weights and inhalation rates over the working life of the individual, what is the lifetime (75 years) chronic daily exposure for each individual? Express your answers in mg/kg-day. Is the exposure greater for the manor the woman?
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Engineering, 04.07.2019 18:20, esmemaluma00
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
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Two wastewater treatment plant workers (one male and one female) are exposed to hydrogen sulfide in...
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