Exam (elaborations)
DoD Hearing Test
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Exam of 2 pages for the course Act 4 The Crucible at Act 4 The Crucible (DoD Hearing Test)
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DoD Hearing TestOSHA prescribes a permissible exposure limit (PEL) of _____ dBA TWA and the DoD
prescribes a PEL of____ - correct answer-B. 90/85
What is the term for the actual attenuation an individual receives wearing hearing
protectors? - correct answer-D. Personal Attenuation Rating
Adding a muffler to noisy equipment to reduce noise exposure is an example of a/an
____________ control. - correct answer-engineering
Human speech is generally located within this frequency range: - correct answer-250 - 4000
Hz
When performing a hearing test, the OHC should present the tones for ____ to ____
seconds. - correct answer-1 - 2
Impulse noise is considered hazardous at what levels? - correct answer-a. ≥ 140 dBP
A bio-acoustic simulator (e.g., ME-500, BIO-JOE, BIO-Betty) is used to: - correct
answer-Take the place of a human when performing daily calibration
The area of the ear most affected by noise damage: - correct answer-Inner
Which part of the ear mechanically amplifies sound? - correct answer-middle ear
The term Hertz describes the________ of a sound. - correct answer-frequency
The audiometric configuration most consistent with noise induced hearing loss is: - correct
answer-sloping/notched
The daily calibration check is documented on the DD _____. - correct answer-2217
The main purpose of monitoring audiometry in the Army hearing program is: - correct
answer-to identify threshold shifts due to noise exposure
One significant difference between OSHA and DoD hearing conservation programs is that
the DoD uses a ____ dB SPL time-intensity exchange rate where OSHA prescribes a _____
dB SPL time-intensity exchange rate. - correct answer-
The primary reason for educating workers about hazardous noise and its effects is to: -
correct answer-motivate workers to protect their hearing
The range of human hearing at birth? - correct answer-20 - 20,000 Hz
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