a) The graph shows the US Department of Labor noise regulation for working witho

Question

a) The graph shows the US Department of Labor noise regulation for working without ear protection. A machinist is in an environment where the ambient sound level is of 85 dB, i.e., corresponding to the 8 Hours/day noise level. The machinist likes to listen to music, and plays a Boom Box at an average level of 82.0 dB. Calculate the INCREASE in the sound level from the ambient work environment level (in dB). (**I figured out the answer to part a, I just need help with part b**)

answer. 1.76

b. A student at a rock concert has a seat close to the speaker system, where the average sound intensity corresponds to a sound level of 118 dB. By what factor does that sound intensity exceed the 1.5- Hours/day intensity limits from the graph?

Explanation / Answer

factor does that sound intensity exceed =   118/(1.5 * 24 * ln(2))

                                                                =   4.728

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.