Does OSHA exempt concrete cleaning from the 30 psi limitation?

Does OSHA exempt concrete cleaning from the 30 psi limitation?

• A. Yes
• B. No
• C. Only under certain conditions
• D. Not specified

Answer: (A)

The main idea here is understanding what the 30 psi limit covers. That limit is about cleaning with compressed air, to protect workers from air blasts and flying particles. Concrete cleaning is typically done with water-based methods, like pressure washing, not with compressed air. Because you’re using a liquid jet rather than air, the 30 psi restriction doesn’t apply to that method. So concrete cleaning is exempt from that particular limitation. If you were cleaning with compressed air on concrete, you would still need to follow the 30 psi rule. The other choices don’t fit because the limit isn’t universally applied to all cleaning methods, and there isn’t a conditional or unspecified status in this context.

The main idea here is understanding what the 30 psi limit covers. That limit is about cleaning with compressed air, to protect workers from air blasts and flying particles. Concrete cleaning is typically done with water-based methods, like pressure washing, not with compressed air. Because you’re using a liquid jet rather than air, the 30 psi restriction doesn’t apply to that method. So concrete cleaning is exempt from that particular limitation.

If you were cleaning with compressed air on concrete, you would still need to follow the 30 psi rule. The other choices don’t fit because the limit isn’t universally applied to all cleaning methods, and there isn’t a conditional or unspecified status in this context.