CAOHC Certification Questions Answered Correctly – Expert Verified | Latest Version 2024/2025

________________ correlates well with risk of noise induced hearing loss - A-weighting ________________ is used to filter and measured sound to capture sounds considered to be hazardous to hearing. - A-weighting _____________________ measurement during testing is best. - Continuous 100 dB + 100 dB = ?? - 103 dB According to OSHA who may perform audiometry? - 1. License audiologist, otolaryngologist (ENT), or other physician 2. OHC's certified by CAOHC or who have demonstrated competence According to the OSHA Permissible Exposure Limit (PEL) when is hearing protection MANDATORY? - 8-hour TWA > 90 dBA TWA Age correction is only applied to an STS not the _______________ - Actual thresholds Ambient noise levels must _____________ be below the limits during audiometric testing. - ALWAYS Approximately how many people are exposed to hazardous noise in the workplace? - 30 million people Are earphones and audiometers interchangeable? - No