Time-Weighted Average changes if an employee works longer than _____ hour shifts.
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8 hour
Parts of the middle ear
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Tympanic membrane, ossicles, eustachian tube
Dual hearing protection NRR
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After derating add additional 5dB of protection
Microprocessor audiometer
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Automated computer controlled audiometer
Some major element of HCP are:
1. ______________ _______________ assessment
2. Noise _________________
3. ___________________________ Monitoring
4. ________________ _______________________ ___________________________ (HPDs)
5. Hearing __________________________ Education
6. Recordkeeping
7. ______________________ Evaluation
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1. Noise Hazard Assessment
2. Noise Controls
3. Audiometric Monitoring
4. Hearing Protection Devices (HPDs)
5. Hearing Conservation Education
6. Recordkeeping
7. Program Evaluation
,Note that ____________ or _________ noise exposure should never exceed 140 dB(A),
regardless of the 8-hour average.
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impact or impulse
Per the OSHA Hearing Conservation Standard for an 8-hour TWA, the Action Level
(AL) is ______________, and the Permissible Exposure Limit is ________________.
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85 dB(A) ; 90 dB(A)
Noise exposures are considered likely to be harmful if shouting is required in order to
communicate to a person __________ feet away.
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3 feet
NRR
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, Noise Reduction Rating; number determined in a laboratory
Calibration of audiometer performed daily with a electroacoustic simulator or human
ear is called a:
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Biologic calibration
Best audiometer for testing multiple stations
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Microprocessor Audiometer
Weighting Network Z is unweighted across the human hearing frequency range of
________ to ______________ Hz.
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20 - 20,000 Hz
Impulse or Impact noise, e.g. gunfire or nail gun
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8 hour
Parts of the middle ear
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Tympanic membrane, ossicles, eustachian tube
Dual hearing protection NRR
,Give this one a try later!
After derating add additional 5dB of protection
Microprocessor audiometer
Give this one a try later!
Automated computer controlled audiometer
Some major element of HCP are:
1. ______________ _______________ assessment
2. Noise _________________
3. ___________________________ Monitoring
4. ________________ _______________________ ___________________________ (HPDs)
5. Hearing __________________________ Education
6. Recordkeeping
7. ______________________ Evaluation
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1. Noise Hazard Assessment
2. Noise Controls
3. Audiometric Monitoring
4. Hearing Protection Devices (HPDs)
5. Hearing Conservation Education
6. Recordkeeping
7. Program Evaluation
,Note that ____________ or _________ noise exposure should never exceed 140 dB(A),
regardless of the 8-hour average.
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impact or impulse
Per the OSHA Hearing Conservation Standard for an 8-hour TWA, the Action Level
(AL) is ______________, and the Permissible Exposure Limit is ________________.
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85 dB(A) ; 90 dB(A)
Noise exposures are considered likely to be harmful if shouting is required in order to
communicate to a person __________ feet away.
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3 feet
NRR
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, Noise Reduction Rating; number determined in a laboratory
Calibration of audiometer performed daily with a electroacoustic simulator or human
ear is called a:
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Biologic calibration
Best audiometer for testing multiple stations
Give this one a try later!
Microprocessor Audiometer
Weighting Network Z is unweighted across the human hearing frequency range of
________ to ______________ Hz.
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20 - 20,000 Hz
Impulse or Impact noise, e.g. gunfire or nail gun
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