CAOHC OCCUPATIONAL HEARING
CONSERVATION TEST LATEST 2025
WITH VERIFIED SOLUTIONS AND
COMPLETE QUESTIONS GUARANTEED TO
PASS
◉Who is the certification body for? . Ans: Occupational Hearing
Conservationist (OHCs)
Course Directors (CDs)
Professional Supervisors (PSs)
◉What is CAOHCs mission? . Ans: To promote hearing loss prevention
by enhancing the quality of occupational hearing loss prevention
practices, with a focus on:
Providing OHCs: resources and guidance to facilitate the practice of
hearing loss prevention through standardized training and credentialing
,Providing CDs: training resources, curriculum oversight, and
professional support to assist in ensuring the competence of OHC's
◉What does CAOHC do? . Ans: Promote BEST PRACTICES in
occupational hearing conservation
◉What is a CAOHC certified student? . Ans: Certified occupational
hearing conservationist (COHC)
◉How long does a COHC certification last? . Ans: 5 years
◉What are the two effects of noise? . Ans: Auditory
Non-auditory
◉Defined auditory . Ans: Direct effects to the ear
◉What are some examples of auditory effects? . Ans: 1. Noise induced
hearing loss (NIHL)
2. Tinnitus (ringing in the ear)
,3. Hyperacusis (high sensitivity to noise; lower tolerance for loud
sounds)
4. Communication interference
◉Define non-auditory . Ans: Other physiological and psychological
effects
◉What are some examples of non-auditory effects? . Ans: 1.
Hypertension
2. Cognitive decline
3. Stress
4. Isolation, Social withdrawal, frustration
5. Sleep disturbances
6. Degraded work performance
, ◉What are some early signs of noise induced hearing loss? . Ans: 1.
Difficulty understanding conversations (particularly in background
noise)
2. Ringing or buzzing in the ears (tinnitus)
◉What are some characteristics of noise induced hearing loss? . Ans: 1.
Usually bilateral, always sensorineural
2. Typically affects high frequencies first; audiometric "notch" at
4000Hz
3. Primary determiners of damage are duration and intensity of sound
4. Temporary hearing threshold shifts (TTS) become permanent
threshold shifts (PTS)
◉Name two sources of hazardous noise . Ans: 1. Occupational noise
exposure
2. Non-occupational noise exposure
CONSERVATION TEST LATEST 2025
WITH VERIFIED SOLUTIONS AND
COMPLETE QUESTIONS GUARANTEED TO
PASS
◉Who is the certification body for? . Ans: Occupational Hearing
Conservationist (OHCs)
Course Directors (CDs)
Professional Supervisors (PSs)
◉What is CAOHCs mission? . Ans: To promote hearing loss prevention
by enhancing the quality of occupational hearing loss prevention
practices, with a focus on:
Providing OHCs: resources and guidance to facilitate the practice of
hearing loss prevention through standardized training and credentialing
,Providing CDs: training resources, curriculum oversight, and
professional support to assist in ensuring the competence of OHC's
◉What does CAOHC do? . Ans: Promote BEST PRACTICES in
occupational hearing conservation
◉What is a CAOHC certified student? . Ans: Certified occupational
hearing conservationist (COHC)
◉How long does a COHC certification last? . Ans: 5 years
◉What are the two effects of noise? . Ans: Auditory
Non-auditory
◉Defined auditory . Ans: Direct effects to the ear
◉What are some examples of auditory effects? . Ans: 1. Noise induced
hearing loss (NIHL)
2. Tinnitus (ringing in the ear)
,3. Hyperacusis (high sensitivity to noise; lower tolerance for loud
sounds)
4. Communication interference
◉Define non-auditory . Ans: Other physiological and psychological
effects
◉What are some examples of non-auditory effects? . Ans: 1.
Hypertension
2. Cognitive decline
3. Stress
4. Isolation, Social withdrawal, frustration
5. Sleep disturbances
6. Degraded work performance
, ◉What are some early signs of noise induced hearing loss? . Ans: 1.
Difficulty understanding conversations (particularly in background
noise)
2. Ringing or buzzing in the ears (tinnitus)
◉What are some characteristics of noise induced hearing loss? . Ans: 1.
Usually bilateral, always sensorineural
2. Typically affects high frequencies first; audiometric "notch" at
4000Hz
3. Primary determiners of damage are duration and intensity of sound
4. Temporary hearing threshold shifts (TTS) become permanent
threshold shifts (PTS)
◉Name two sources of hazardous noise . Ans: 1. Occupational noise
exposure
2. Non-occupational noise exposure
