Questions about noise: (1) In the Dorben Co., an all-day study revealed the following noise sources: 0.5 hrs., 100 dBA; 1 hr., 80 dBA; 3.5 hrs., 90 dBA; 3 hrs., 95 dBA. What is the dose exposure? (Please keep the integer) (2) John Smith experiences an 8-hour noise dose of 120 by spending one hours in Room #1 with a known noise level of 100 dBA and another seven hours in Room #2 with an unknown noise level. (Please keep two decimal places) a) Based on the calculation of 120 noise dose, what is the time permitted in Room #2 with this unknown noise level? hr

Questions about noise: (1) In the Dorben Co., an all-day study revealed the following noise sources: 0.5 hrs., 100 dBA; 1 hr., 80 dBA; 3.5 hrs., 90 dBA; 3 hrs., 95 dBA. What is the dose exposure? (Please keep the integer) (2) John Smith experiences an 8-hour noise dose of 120 by spending one hours in Room #1 with a known noise level of 100 dBA and another seven hours in Room #2 with an unknown noise level. (Please keep two decimal places) a) Based on the calculation of 120 noise dose, what is the time permitted in Room #2 with this unknown noise level? hr

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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