Exam Preview for 39476: Hearing Protection: Delivering Safety and S

Hearing Protection: Delivering Safety and Service to the Community

Please note: exam questions are subject to change.

1. What percentage of teens knowingly engage in activities that could damage their hearing? 10% 60% 88% 95%
2. What is classified as the range of protection expected from a hearing protection device under normal usage conditions? Noise Reduction Rating Sound Level Rating Recreational Noise Predictive Rating Noise Impact Rating
3. What level did NIOSH established that workers exposed over an 8-hour workday are at risk of developing hearing loss over their working lifetime? 65 dBA 85 dBA 90 dBA 100 dBA
4. Hearing loss identified in the hearing clinic often presents with what history? Case history of noise exposure, possible tinnitus and an audiometric notch around 4 kHz Workplace head or neck injury Cerumen buildup Ototoxic medication usage
5. Which of the following hearing protection devices is NOT classified as a "specialty protection device?" Active noise cancellation headphones Filtered Musicians earplugs Foam earplugs Level-dependent hearing protection devices