Exam (elaborations)
CAOHC Practice Exam (1)
- Course
- Institution
CAOHC Practice Exam (1)
[Show more]
Seller
Follow
lydiaomutho
Content preview
CAOHC Practice ExamWhat type of tone is employed in audiometry?
A. Complex
B. Pure
C. Basal
D. Harmonic
E. None of the above - ANS-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 - ANS-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 - ANS-B. False
The method for approximating real world attenuation from an NRR is called "delisting".
A. True
B. False - ANS-B. False
What factors influence the effectiveness of hearing protectors?
A. Temperature
B. Radio frequencies
C. Particles
D. Solvents
E. All of the above - ANS-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 - ANS-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 - ANS-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 - ANS-A. Temporary Threshold Shift
'Hearing levels' used by audiometers are also known as 'sound pressure levels'.
A. True
B. False - ANS-B. False
Intermittent noise is noise that:
A. Does not end
B. Fluctuates in sound levels with periodic interruptions of relative quiet
C. Rises continuously
D. Has been abated through the implementation of engineering controls
E. None of the above - ANS-B. Fluctuates in sound levels with periodic interruptions of relative
quiet
When performing a test, it is best practice to:
A. Vary the interval between tone presentations
B. Present constant tones for at least 3 seconds
C. Use an interval that is less than the length of the tone presentation
D. All of the above
E. None of the above - ANS-A. Vary the interval between tone presentations
OHCs using a microprocessor audiometer never need to understand how to calculate an STS.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76800 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now