In a power plant the noise produced by the machinery is: Steam turbine 92 dB, generator 76 dB, pumps 72 dB. If all machines are running continuously, calculate the reduction in sound pressure level in dB that would result if the steam turbine is covered with a special soundproof enclosure so that people can work in this area without personal hearing protectors for 4 hours a day.

In a power plant the noise produced by the machinery is: Steam turbine 92 dB, generator 76 dB, pumps 72 dB. If all machines are running continuously, calculate the reduction in sound pressure level in dB that would result if the steam turbine is covered with a special soundproof enclosure so that people can work in this area without personal hearing protectors for 4 hours a day.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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