CAOHC Practice Exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
- What type of tone is employed in audiometry?
A. Complex
B. Pure
C. Basal
D. Harmonic
E. None of the above - CORRECT ANSWERS B. Pure
What factors should be considered when selecting hearing protectors
A. Comfort
B. Ease of use
C. Attenuation amount
D. Communication requirements
E. All of the above - CORRECT ANSWERS E. All of the
above
When determining a threshold, a positive response should be followed
by lowering the hearing level 5 dB.
A. True
B. False - CORRECT ANSWERS B. False
,The method for approximating real world attenuation from an NRR is
called "delisting".
A. True
B. False - CORRECT ANSWERS B. False
What factors influence the effectiveness of hearing protectors?
A. Temperature
B. Radio frequencies
C. Particles
D. Solvents
E. All of the above - CORRECT ANSWERS E. All of the
above
Which of the following is a method to verify proper plug insertion?
A. Acoustic check observing noise level change when cupping hands
over ear
B. Observing attenuation when tapping gently on the mastoid bone
C. Check the packaging NRR and verify is adequate for sound levels
encountered
D. All of the above
E. None of the above - CORRECT ANSWERS A. Acoustic
check observing noise level change when cupping hands over ear
, The commonly considered range of normal hearing is from:
A. 0-25 dB
B. 0-35 dB
C. 0-45 dB
D. 25-35 dB
E. 25-45 dB - CORRECT ANSWERS A. 0-25 dB
What is the term for temporary hearing loss after noise exposure?
A. Temporary Threshold Shift
B. Transient Inurement
C. Ossicle Dampening Phenomenon
D. Noise-Induced Hearing Lesion
E. Standard Threshold Shift - CORRECT ANSWERS A.
Temporary Threshold Shift
'Hearing levels' used by audiometers are also known as 'sound
pressure levels'.
A. True
B. False - CORRECT ANSWERS B. False
Intermittent noise is noise that:
QUESTIONS AND CORRECT ANSWERS
- What type of tone is employed in audiometry?
A. Complex
B. Pure
C. Basal
D. Harmonic
E. None of the above - CORRECT ANSWERS B. Pure
What factors should be considered when selecting hearing protectors
A. Comfort
B. Ease of use
C. Attenuation amount
D. Communication requirements
E. All of the above - CORRECT ANSWERS E. All of the
above
When determining a threshold, a positive response should be followed
by lowering the hearing level 5 dB.
A. True
B. False - CORRECT ANSWERS B. False
,The method for approximating real world attenuation from an NRR is
called "delisting".
A. True
B. False - CORRECT ANSWERS B. False
What factors influence the effectiveness of hearing protectors?
A. Temperature
B. Radio frequencies
C. Particles
D. Solvents
E. All of the above - CORRECT ANSWERS E. All of the
above
Which of the following is a method to verify proper plug insertion?
A. Acoustic check observing noise level change when cupping hands
over ear
B. Observing attenuation when tapping gently on the mastoid bone
C. Check the packaging NRR and verify is adequate for sound levels
encountered
D. All of the above
E. None of the above - CORRECT ANSWERS A. Acoustic
check observing noise level change when cupping hands over ear
, The commonly considered range of normal hearing is from:
A. 0-25 dB
B. 0-35 dB
C. 0-45 dB
D. 25-35 dB
E. 25-45 dB - CORRECT ANSWERS A. 0-25 dB
What is the term for temporary hearing loss after noise exposure?
A. Temporary Threshold Shift
B. Transient Inurement
C. Ossicle Dampening Phenomenon
D. Noise-Induced Hearing Lesion
E. Standard Threshold Shift - CORRECT ANSWERS A.
Temporary Threshold Shift
'Hearing levels' used by audiometers are also known as 'sound
pressure levels'.
A. True
B. False - CORRECT ANSWERS B. False
Intermittent noise is noise that:
