Question

the current permissible noise exposure for the construction industry is ____ for an eight - hour duration. select your answer by pressing the letter. (a) 90ma (b) 90db (c) 120db (d) none of the above

Explanation:

Noise exposure is measured in decibels (dB). The current permissible noise exposure for an eight - hour duration in the construction industry is 90 dB. mA is a unit of electric current, not related to noise. 120 dB is too high for an eight - hour exposure.

Answer:

B. 90dB