CSS CSS - Certified Safety Supervisor Personal Protective Equipment and Industrial Hygiene Questions and Answers 2 — Questions and Answers
Question 1: What is the OSHA action level for occupational noise exposure under 29 CFR 1910.95?
- 85 dBA 8-hr TWA (Correct answer)
- 90 dBA 8-hr TWA
- 80 dBA 8-hr TWA
- 95 dBA 8-hr TWA
Correct answer: 85 dBA 8-hr TWA
The OSHA action level for noise is 85 dBA as an 8-hour TWA, which triggers audiometric testing and hearing conservation program requirements.
Question 2: Which air-purifying respirator cartridge color coding indicates protection against organic vapors per NIOSH/ANSI standards?
- Yellow
- White
- Black (Correct answer)
- Green
Correct answer: Black
Black cartridges denote organic vapor protection in the NIOSH/ANSI K13.1 color-coding system for respirator cartridges.
Question 3: The Hierarchy of Controls places PPE at which position?
- First (most effective)
- Second
- Third
- Last (least effective) (Correct answer)
Correct answer: Last (least effective)
PPE is the last line of defense in the Hierarchy of Controls because it does not eliminate the hazard but only protects the worker from exposure.
Question 4: A Safety Supervisor notices workers are frequently removing their respirators in a contaminated area because they are uncomfortable. What is the best corrective action?
- Issue disciplinary warnings immediately
- Conduct fit testing and explore less restrictive respirator options (Correct answer)
- Post reminder signs about PPE policy
- Increase ventilation and remove the respirator requirement
Correct answer: Conduct fit testing and explore less restrictive respirator options
Fit testing ensures proper seal and comfort; switching to a better-fitting respirator type improves compliance while maintaining protection.
Question 5: Which industrial hygiene sampling method collects contaminant data over an entire work shift to calculate a TWA?
- Grab sampling
- Passive dosimetry (Correct answer)
- Grab dosimetry
- Instantaneous sampling
Correct answer: Passive dosimetry
Passive dosimeters (e.g., badge samplers) collect contaminants continuously throughout the work shift, enabling accurate TWA calculation.
Question 6: Which OSHA standard requires employers to certify that a PPE hazard assessment has been performed?
- 29 CFR 1910.132 (Correct answer)
- 29 CFR 1910.134
- 29 CFR 1910.133
- 29 CFR 1910.138
Correct answer: 29 CFR 1910.132
29 CFR 1910.132(d) requires employers to assess the workplace for PPE hazards and certify the assessment in writing.
CSS CSS - Certified Safety Supervisor Personal Protective Equipment and Industrial Hygiene Questions and Answers 2
What is the OSHA action level for occupational noise exposure under 29 CFR 1910.95?