CAOHC Final Exam Questions with Correct Answers

CAOHC Final Exam Questions with Correct Answers Impacted wax results in which type of hearing loss? - answerConductive The purpose of the auto otoscopic exam by the OHSC is to? - answerVisually examine the ear canal for obstruction Noise causes which type of hearing loss? - answerSensorineural Hearing loss from noise exposure is usually due to? - answerCochlear hair cell damage the term pitch relates to - answerFrequency The range of normal human hearing at birth is? - answer20 HZ -20,000HZ What is the most common threshold pattern for people who work in a noise environment ? - answerslopingnotched A standard threshold shift defined by OSHA as - answera 10 db average change in hearing at 2000, 3000,4000HZ If the annual autograph shows a standard threshold shift relative to the baseline OSHA requires the employer to notify the employee in the writing within how many days - answer21 days of determination According with OSHA which employees must receive mandatory annual hearing conservation training? - answerAll employees exposed to 85 DBA TWA greater OSHA permissible exposure limit and exchange rate are - answer90 DBA TWA AND 5DB According to the OSHA standard the permissible exposure limit PEL is a noise dose of 100% this dose is equal to an 8 hours time weighted average off - answer90 DBA If trying to identify a temporary threshold shift the best time to perform and audiogram is - answerAt the end of the work shift Which of the followings is equivalent to noise exposure exposure OF 90DBA for eight hours - answer95 dba for 4 hrs The intensity dial of the audiometer control the decibel of the tone - answerDecibel