CAOHC EXAM SOLVED CORRECTLY TO
SCORE A+
What is the mission of CAOHC? CORRECT ANSWERS -promote best practices in
hearing conservation worldwide and promote HL prevention thru training, guidance and
support
What are the professional disciplines represented on CAOHC? CORRECT ANSWERS
OHC's, CD's, PS's
Who are the people that work w OHC? CORRECT ANSWERS -occupational health
nurse, audiologist, noise control engineer, physician, safety and health specialist,
company management
What are the elements of an effective hearing conservation program? CORRECT
ANSWERS -noise monitoring, noise control, employee training, audiometric testing,
hearing protection and recordkeeping
What does the outer ear do? CORRECT ANSWERS collects/ funnels sound
What does the middle ear do? CORRECT ANSWERS Convert sound waves to
mechanical energy
What does the outer ear do? CORRECT ANSWERS Converts mechanical energy to
electrical energy
What are 2 causes of conductive HL? CORRECT ANSWERS -otosclerosis (stapes
cannot move), eustachian tube dysfunction
What are three causes of sensorineural HL? CORRECT ANSWERS -presbycusis, noise
exposure, chemicals
What frequencies are affected by noise exposure? CORRECT ANSWERS High
Whats the configuration of NIHL? CORRECT ANSWERS noise notch at 4K
What does the eustachian tube do? CORRECT ANSWERS Equalizes pressure in the
middle ear
Hz is CORRECT ANSWERS frequency / pitch
dB is CORRECT ANSWERS amplitude/ loudness/ intensity
SCORE A+
What is the mission of CAOHC? CORRECT ANSWERS -promote best practices in
hearing conservation worldwide and promote HL prevention thru training, guidance and
support
What are the professional disciplines represented on CAOHC? CORRECT ANSWERS
OHC's, CD's, PS's
Who are the people that work w OHC? CORRECT ANSWERS -occupational health
nurse, audiologist, noise control engineer, physician, safety and health specialist,
company management
What are the elements of an effective hearing conservation program? CORRECT
ANSWERS -noise monitoring, noise control, employee training, audiometric testing,
hearing protection and recordkeeping
What does the outer ear do? CORRECT ANSWERS collects/ funnels sound
What does the middle ear do? CORRECT ANSWERS Convert sound waves to
mechanical energy
What does the outer ear do? CORRECT ANSWERS Converts mechanical energy to
electrical energy
What are 2 causes of conductive HL? CORRECT ANSWERS -otosclerosis (stapes
cannot move), eustachian tube dysfunction
What are three causes of sensorineural HL? CORRECT ANSWERS -presbycusis, noise
exposure, chemicals
What frequencies are affected by noise exposure? CORRECT ANSWERS High
Whats the configuration of NIHL? CORRECT ANSWERS noise notch at 4K
What does the eustachian tube do? CORRECT ANSWERS Equalizes pressure in the
middle ear
Hz is CORRECT ANSWERS frequency / pitch
dB is CORRECT ANSWERS amplitude/ loudness/ intensity