CAOHC Hearing Conservation Program Administration 2 — Questions and Answers
Question 1: What does the acronym TWA represent in the context of occupational noise exposure measurement?
- Total Weighted Average
- Time-Weighted Average (Correct answer)
- Threshold Warning Alert
- Total Work Assignment
Correct answer: Time-Weighted Average
TWA stands for Time-Weighted Average, representing a worker's average noise exposure normalized to an 8-hour workday.
Question 2: What is OSHA's action level for noise exposure that triggers mandatory hearing conservation program enrollment?
- 80 dBA TWA
- 85 dBA TWA (Correct answer)
- 90 dBA TWA
- 95 dBA TWA
Correct answer: 85 dBA TWA
OSHA's action level is 85 dBA TWA, at which point employers must enroll workers in a hearing conservation program.
Question 3: What is the Permissible Exposure Limit (PEL) for noise under OSHA's General Industry Standard (29 CFR 1910.95)?
- 85 dBA TWA
- 90 dBA TWA (Correct answer)
- 95 dBA TWA
- 100 dBA TWA
Correct answer: 90 dBA TWA
OSHA's PEL for occupational noise in general industry is 90 dBA as an 8-hour time-weighted average.
Question 4: Which OSHA standard governs occupational noise exposure requirements for general industry employers?
- 29 CFR 1910.95 (Correct answer)
- 29 CFR 1926.52
- 29 CFR 1910.134
- 29 CFR 1926.101
Correct answer: 29 CFR 1910.95
29 CFR 1910.95 is OSHA's Occupational Noise Exposure standard for general industry, outlining all HCP requirements.
Question 5: Within how many days of an STS determination must an employer notify the affected employee?
- Within 21 days (Correct answer)
- Within 30 days
- Within 6 months
- At the next annual review
Correct answer: Within 21 days
OSHA requires employers to notify workers of a standard threshold shift determination within 21 days.
Question 6: Which combination of elements is required for a complete OSHA-compliant hearing conservation program?
- Noise monitoring, audiometric testing, HPDs, training, and recordkeeping (Correct answer)
- Only audiometric testing and HPD distribution
- Only noise monitoring and recordkeeping
- Medical surveillance and workers' compensation administration
Correct answer: Noise monitoring, audiometric testing, HPDs, training, and recordkeeping
OSHA's HCP standard requires all five elements: noise monitoring, audiometric testing, HPDs, training, and recordkeeping.
CAOHC Hearing Conservation Program Administration 2
What does the acronym TWA represent in the context of occupational noise exposure measurement?