CAOHC Test Questions with All Correct Answers

CAOHC Test Questions with All Correct Answers Unprotecting noise exposure can cause the following types of hearing loss - Answer- SENSORINEURAL The range of human speech IS - Answer-250 HZ-4000HZ What is the cause of conductive hearing loss - Answer-Cerumen impaction the audiometer use for industrial hearing testing is - Answer-Pure - tone air conduction Identify the correct starting settings on an audiometer for testing. - Answer-0 db and 1000HZ When testing the correct procedure to follow is - Answer-Down by 10 DB, up by 5DB The subject responds to a tone at 25 DB HL to nextT DB HL setting is - Answer-15 DB HL If the subject is given a false responses and likely guessing the best action is too - Answer-Test them in automatic mode Problem audiograms must be repaired by - Answer-an audiologist or physician Background noise levels in the testing department must be rechecked - Answer-if the environment changes or to boot is moved biological calibration checks are required - Answer-Daily prior testing When testing a subject with tinnitus is the best to - Answer-use a pulse tone As part of the self listing check the following is evaluated - Answer-Static /distortion An exhaustive calibration check is required. - Answer-Every two years the auidiometer must be acoustically calibrated. - Answer-Annually The following information must be listed on the audiogram for OSHA testing - Answer- Tester name -last audiometer calibration date -employee must resent noise exposure assessment. -all the above According to OSHA Autometric testing records more must be kept for - Answer-Duration of employment In OSHA TBA TWA noise exposure can be found in the following - Answer-OSHA noise standard The perception of loudness is measured using the - Answer-Decibel Employees sustaining a STS must wear hand protection with noise levels - Answer- Meet or exceed 85 DB ATWA Regarding hearing protection employers must offer an according to OSHA - dod - Answer-a variety A Earplugs fits properly if - Answer-It is full inserted into the ear canal The following should be considerate when fitting hearing protection - Answer-Material Activities that the OHC is qualified to perform. - Answer-Audiometric testing otoscopic examination Anatomy of the ear - Answer-Ear diagram The ear is divided into three parts - Answer-outer, middle, inner cerumen - Answer-Produced by glands in the outer portion of the ear canals helped protect canals from foreign objects