What level of DBA is considered the maximum limit of continuous exposure over eight hour days without protection?
A) 150
B) 3
C) 90
D) 20

Question

Quizplus · Accepted Answer

The maximum limit of continuous exposure over eight-hour days without protection is 90 dBA, as per OSHA standards. Option A (150 dBA) is too loud and can cause immediate harm to hearing even with short-term exposure, whereas option B (3 dBA) is too low to cause any significant harm. Option D (20 dBA) is also too low as it falls within the safe range. Therefore, the best choice is C.

What Level of DBA Is Considered the Maximum Limit of Continuous