CAOHC Multiple Choice Exam ACTUAL QUESTIONS AND CORRECT ANSWERS - Decibel (dB) - CORRECT ANSWERS

CAOHC Multiple Choice Exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
- Decibel (dB) - CORRECT ANSWERS Unit of measurement
for intensity/loudness


Hertz (Hz) - CORRECT ANSWERS Unit of measurement for
frequency/pitch


Frequency range for humans at birth - CORRECT ANSWERS
20 Hz to 20,000 Hz


Frequency range for human speech - CORRECT ANSWERS
250 Hz to 4,000 Hz


Frequency range humans hear BEST - CORRECT ANSWERS
500 Hz to 4,000 Hz


Range of human intensity - CORRECT ANSWERS 0 dB to
140 dB


Range of intensity for normal hearing - CORRECT ANSWERS
0 dB HL to 25 dB HL


Conductive Hearing Loss - CORRECT ANSWERS Hearing
loss or impairment resulting from interference with the transmission
of sound waves to the cochlea

, Sensorineural hearing loss (nerve deafness) - CORRECT ANSWERS
Hearing loss caused by damage to the cochlea's receptor cells
or to the auditory nerves


Mixed hearing loss - CORRECT ANSWERS Combination of
conductive and sensorineural types in same ear


Temporary Threshold Shift (TTS) - CORRECT ANSWERS A
reversible desensitization in hearing that is perceived to disappear
after removal from hazardous noise


Part of the outer ear that collects sound waves - CORRECT
ANSWERS Pinna


Part of the middle ear that equalizes the ear to atmospheric pressure -
CORRECT ANSWERS Eustachian Tube


Impacted cerumen is an example of this type of hearing loss: -
CORRECT ANSWERS Conductive


Noise induced hearing loss (NIHL) is an example of this type of
hearing loss: - CORRECT ANSWERS Sensorineural


Term for aging of the ear which results in a sensorineural hearing loss
- CORRECT ANSWERS Presbycusis