CAOHC Exam Prep Questions with 100% Correct Answers

CAOHC Exam Prep Questions with 100% Correct Answers hertz is a unit of: - answersound frequency decibel is a unit of: - answersound intensity the frequency of sound is perceived as: - answerpitch what is the first thing you should do when fitting earplugs? - answera. pull the top of the ear to align the ear canal b. roll the earplug down into a tight, crease-free cylinder c. CHECK THE EAR CANAL FOR ANY OCCLUSIONS d. insert the earplug deep into the ear canal hearing tests do not have to be conducted in a sound booth as long as maximum allowable ambient noise levels aren't exceeded: - answertrue what type of hearing loss can be attributed to noise? - answersensorineural what is the frequency range of speech sounds? - answer250-4000 Hz OSHA requires exhaustive calibration if there is a deviation of greater than or equal to 15 dB: - answertrue the range of normal hearing is: - answer0-25 dB intermittent noise is noise that: - answera. does not end b. FLUCTUATES IN SOUND LEVEL WITH PERIODIC INTERRUPTIONS OF RELATIVE QUIET c. rises continuously d. has been abated through the implementation of engineering controls e. none of the above functional hearing loss is also known as pseudohypacusis: - answertrue conventional earplugs typically reduce high frequency noise more than low-frequency noise: - answertrue OSHA allows retests to be substituted for original tests if done within how many days of the original test? - answer30 days administrative controls to limit noise exposure to include: - answerlimiting the time a worker spends at a noise source when a worker's exposure level reaches the "action level", the employer must: - answerinclude the worker in a hearing conservation program what components does OSHA require for worker training? - answera: effects of noise on hearing b: purpose of hearing protectors c: purpose of hearing testing d: instructions on selecting and fitting protectors e. ALL OF THE ABOVE what is the document that OSHA requires to report hearing loss incidents? - answerform 300 the missions of CAOHC include: - answerguiding industry on successful implementation of hearing conservation programs NIHL typically affects: - answerhigher frequencies first what is the term for temporary hearing loss after noise exposure? - answertemporary threshold shift which of the following is NOT an occupational noise regulatory body? - answera. FRA b: MSHA C: CDC d: OSHA e: NIOSH in order to apply age correction to STS calculations, the worker's age and sex are required: - answertrue which of the following is NOT one of NIOSH's "5 Cs of HPDs" to describe the barriers of protective devices: - answera. comfor