CAOHC UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE
●● NRR calculations are based on an EPA specification that uses a
withdrawn ANSI standard.
Answer: true
●● Age corrections values are determined by:
Answer: Consulting tables published in Appendix F of the regulations
●● Continuous noise is defined as noise lasting longer than:
Answer: 1sec
●● Administrative controls to limit noise exposure include which of the
following?
Answer: Limiting the time a worker spends at a noise source
●● What type of hearing loss can be attributed to noise?
Answer: sensorineural
●● State hearing regulations must meet or exceed federal regulations.
,Answer: true
●● If a daily calibration threshold is off by more than 5 dB, the
audiometer must be acoustically calibrated.
Answer: true
●● in addition to the OSHA requirements, FRA requires what datum on
audiograms?
Answer: audiometer model
●● When visually inspecting an ear canal, an otoscope should be held
like a hammer.
Answer: false
●● No follow-up is required for an STS if a physician determines the
loss was not caused on the job.
Answer: true
●● Audiometric testing is also known as hearing screening.
Answer: false
●● When a worker's exposure reaches the 'action level', the employer
must:
, Answer: include the worker in the hearing conservation program
●● Which of the following is true about banded earplugs?
Answer: They are useful in intermittent noise environments
●● What is the document MSHA requires to report hearing loss
incidents?
Answer: form 7000-1
●● FRA requires worker training within 180 days of enrollment in a
hearing conservation program.
Answer: true
●● What is the amount of attenuation achieved when earplugs are worn
in combination with earmuffs?
Answer: 5 dB more than the higher attenuation of the two devices
●● Which of the following is NOT an occupational noise regulatory
body?
Answer: CDC
●● Hertz is a unit of?
Answer: sound frequency
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE
●● NRR calculations are based on an EPA specification that uses a
withdrawn ANSI standard.
Answer: true
●● Age corrections values are determined by:
Answer: Consulting tables published in Appendix F of the regulations
●● Continuous noise is defined as noise lasting longer than:
Answer: 1sec
●● Administrative controls to limit noise exposure include which of the
following?
Answer: Limiting the time a worker spends at a noise source
●● What type of hearing loss can be attributed to noise?
Answer: sensorineural
●● State hearing regulations must meet or exceed federal regulations.
,Answer: true
●● If a daily calibration threshold is off by more than 5 dB, the
audiometer must be acoustically calibrated.
Answer: true
●● in addition to the OSHA requirements, FRA requires what datum on
audiograms?
Answer: audiometer model
●● When visually inspecting an ear canal, an otoscope should be held
like a hammer.
Answer: false
●● No follow-up is required for an STS if a physician determines the
loss was not caused on the job.
Answer: true
●● Audiometric testing is also known as hearing screening.
Answer: false
●● When a worker's exposure reaches the 'action level', the employer
must:
, Answer: include the worker in the hearing conservation program
●● Which of the following is true about banded earplugs?
Answer: They are useful in intermittent noise environments
●● What is the document MSHA requires to report hearing loss
incidents?
Answer: form 7000-1
●● FRA requires worker training within 180 days of enrollment in a
hearing conservation program.
Answer: true
●● What is the amount of attenuation achieved when earplugs are worn
in combination with earmuffs?
Answer: 5 dB more than the higher attenuation of the two devices
●● Which of the following is NOT an occupational noise regulatory
body?
Answer: CDC
●● Hertz is a unit of?
Answer: sound frequency
