CAOHC STUDY SET QUESTIONS AND ANSWERS

CAOHC STUDY SET Manufacturing - Answer- Which occupational sector accounts for the highest incidence of noise-induced hearing loss? Tinnitus - Answer- A buzzing or ringing in the ears is known as Three - Answer- Noise exposures are considered likely to be harmful if shouting is required in order to communicate to a person __________ feet away Painless, Progressive, Permanent, Preventable - Answer- What are the four P's of Noise-Induced Hearing Loss 140 dBP - Answer- Impulse noise becomes hazardous at Frequency - Answer- Hertz (Hz) is used to measure Pitch - Answer- The frequency of sound is perceived as Decibels (dB) - Answer- The amplitude/intensity of a sound is measured in Exchange rate - Answer- What reflects the relationship between the allowable exposure time and the noise intensity level? 90/85 - Answer- OSHA prescribes a permissible exposure limit (PEL) of __________ dBA TWA and the DoD prescribes a PEL of __________ A - Answer- Workplace hazard surveys are completed using the __________ weighting scale 85/85 - Answer- OSHA prescribes an action level of __________ dBA TWA and DoD prescribes an action level of __________ engineering - Answer- Adding a muffler to noisy equipment to reduce noise exposure is an example of what kind of control? 250-4000 Hz - Answer- Human speech is located in this range of hearing malleus, incus, stapes - Answer- What are the three bones of the middle ear? 8 - Answer- Time Weighted Average is based on an __________ hour exposure use and use correctly - Answer- The best hearing protection is the one that you __________ Presbycusis - Answer- Aging related hearing loss is known as NIOSH - Answer- The organization responsible for conducting research and making recommendations for best/recommended practices preventable - Answer- NIHL is Daily - Answer- Biological calibration checks must be performed how often? Sensorineural - Answer- A noise notch found in audiogram results is indicative o