Question

120 dB sound pressure level working around the first press machine panel is drawn and separated from the workshop. The Panel has the capability to damper only 20% of the sound pressure. However, in order to meet the increase in production, the second and third press machines, one of which has a sound pressure level of 90 dB and the other of which has a sound pressure of 95 dB, were installed in the workshop. The third press machine, which has a sound pressure of 95 dB, is separated from the workshop by another panel which damps 20% of the sound pressure level. In this case, find the total volume of sound pressure exposed by the employees in the workshop and interpret it by comparing it with the safety limit. (Security limit = 85 dB)

Answer 1