A worker is required to wear a hard hat, safety glasses, and steel-toed boots while operating a concrete saw. The saw creates significant dust. What additional PPE is required according to OSHA standards?
Correct Answer
C) Both hearing and respiratory protection
Concrete saw operations generate both high noise levels requiring hearing protection and silica dust requiring appropriate respiratory protection. Both hazards must be addressed with proper PPE.
Why This Is the Correct Answer
Concrete saw operations create two distinct hazards that require specific PPE protection. The high-speed cutting action generates noise levels typically exceeding 85 decibels, requiring hearing protection per OSHA's noise exposure standards. Simultaneously, cutting concrete produces respirable crystalline silica dust, which is a serious health hazard requiring respiratory protection under OSHA's silica standard (29 CFR 1926.1153). Both protective measures are mandatory, not optional alternatives.
Why the Other Options Are Wrong
Option A: Hearing protection only
This option only addresses the noise hazard while completely ignoring the silica dust exposure, which is equally dangerous and specifically regulated by OSHA's silica standard.
Option B: Respiratory protection only
This option only addresses the dust hazard while ignoring the significant noise exposure from concrete saw operations, which typically exceed OSHA's action levels for hearing protection.
Option D: Cut-resistant gloves only
While cut-resistant gloves may provide additional protection, they are not the primary OSHA-required PPE for the specific hazards of noise and silica dust generated by concrete cutting operations.
Memory Technique
Remember 'CONCRETE = LOUD + DUSTY' - concrete saws are both noisy and create harmful dust, so you need protection for both your ears (hearing) and lungs (respiratory).
Reference Hint
OSHA Construction Standards 29 CFR 1926 - Subpart E (Personal Protective Equipment) and Subpart Z (Toxic and Hazardous Substances), specifically 1926.1153 for silica standards
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