Answer :
Final answer:
A welder can be exposed to 80 decibels of noise for up to 8 hours per day according to OSHA guidelines. However, it is still crucial for them to use hearing protection to avoid potential hearing damage.
Explanation:
According to the Occupational Safety and Health Administration (OSHA), a welder can be exposed to 80 decibels (dbs) of noise for up to 8 hours in a day. This standard is based on the idea that noise levels and duration of exposure should not cause damage to hearing. So, none of the provided options are correct according to OSHA's guidelines. It is crucial for welders to use hearing protection to prevent hearing damage when exposed to high decibel noise levels from their duties.
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