CAOHC ACTUAL TEST QUESTIONS WITH
COMPLETE ANSWER KEY
●● OHC
Answer: Occupational Hearing Conservationist
●● Effects of Noise
Answer: Physiological and Psychological
●● NIHL
Answer: Noise Induced hearing Loss
●● Physiological effects of Noise
Answer: NIHL, tinnitus, heart disease (etc.)
●● Psychological effects of Noise
Answer: Startle, annoy, disrupt (etc.)
●● TTS
Answer: Temporary Threshold Shifts
●● PTS
, Answer: Permanent Threshold Shifts
●● Divisions of the Ear
Answer: Outer, Middle, Inner
●● Conductive Hearing Loss
Answer: Breakdown in transmission of sound through the outer or
middle ear
●● Sensorineural Hearing Loss
Answer: Damage to inner ear or nerves that carry signals from inner ear
to brain
●● Mixed hearing loss
Answer: Conductive and sensorineural losses takes place simultaneously
●● Outer Ear Structure
Answer: Auricle (pinna) and External Auditory Meatus (Canal)
●● Outer Ear Problems
Answer: Cerumen, Infection, Foreign Body
●● Ossicles
COMPLETE ANSWER KEY
●● OHC
Answer: Occupational Hearing Conservationist
●● Effects of Noise
Answer: Physiological and Psychological
●● NIHL
Answer: Noise Induced hearing Loss
●● Physiological effects of Noise
Answer: NIHL, tinnitus, heart disease (etc.)
●● Psychological effects of Noise
Answer: Startle, annoy, disrupt (etc.)
●● TTS
Answer: Temporary Threshold Shifts
●● PTS
, Answer: Permanent Threshold Shifts
●● Divisions of the Ear
Answer: Outer, Middle, Inner
●● Conductive Hearing Loss
Answer: Breakdown in transmission of sound through the outer or
middle ear
●● Sensorineural Hearing Loss
Answer: Damage to inner ear or nerves that carry signals from inner ear
to brain
●● Mixed hearing loss
Answer: Conductive and sensorineural losses takes place simultaneously
●● Outer Ear Structure
Answer: Auricle (pinna) and External Auditory Meatus (Canal)
●● Outer Ear Problems
Answer: Cerumen, Infection, Foreign Body
●● Ossicles
