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CAOHC TEST EXAM QUES TIONS
WITH CORRECT ANSWER S
Question : What is the purpose of the OHC?
CORRECT ANSWER : Providing resources and
guidance to facilitate the practice of hearing loss prevention through standardized training and credentialing
Question : What is the difference between the requiremtns
of OSHA and the recommendations of NIOSH?
CORRECT ANSWER : NIOSH refers to research and
recoomendations. OSHA regulates and implements.
Question : What are examples of auditory effects on
hearing and damage risks?
CORRECT ANSWER : Tinnitus and hearing loss
Question : What are non auditory effects on hearing and
damage risks?
CORRECT ANSWER : Stress, high blood pressure
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Question : What are potential sources of hazardous noise
in occupational work settings?
CORRECT ANSWER : Machinery, constructino,
railoroads and equipment, mining, manufacturing, farming, professional musician
Question : What are potential sources of hazardous noise
in non occupational work settings?
CORRECT ANSWER : Motorcycles, sporting guns,
carpentry equipment, lawn equipment, personal listening devices
Question : What are some of the lasting effects of noise
induced hearing loss?
CORRECT ANSWER : Social withdrawal, frustration,
anger, and effects on private life
Question : What are the "do's" of an OHC (hearing tech)?
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CORRECT ANSWER : Education, fitting hearing
protection, hearing test, and counciling
Question : What are the don'ts of an OHC (hearing tech)?
CORRECT ANSWER : Diagnose, supervise
Question : Who can be Professional Supervisors?
CORRECT ANSWER : Audiologists and physicians
Question : How many workers are exposed to hazardous
noise on the job?
CORRECT ANSWER: 22 million plus
Question : What occupational population is most at risk
for noise induced hearing loss which highest amount of claims?
CORRECT ANSWER : Manufacturing accounts for
approximately 14% of U.S workforce but accounts for approximately 80% of incidence of NIHL.
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Question : Collects sound waves, localizes sounds waves,
protects middle ear components and provides resonate amplication is the function of what part of the ear?
CORRECT ANSWER : Outer ear
Question : Acoustic transformer, impedance matching
system, provides pressue equalization, and protects the inner ear is the function of what part of the ear?
CORRECT ANSWER : Middle ear
Question : Provides intensity, frequency and temporal
coding that is relayed via the auditory nerve for further processing is the function of what part of the ear?
CORRECT ANSWER : Inner ear
Question : An early stage indication of noise induced
hearing loss is identified typically at which frequencies on an audiogram?