[GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
**Question 1.** Which part of the outer ear primarily functions to collect and funnel sound
waves toward the tympanic membrane?
A) External auditory canal
B) Pinna
C) Tympanic membrane
D) Eustachian tube
Answer: B
Explanation: The pinna’s shape captures sound and directs it into the external auditory canal.
**Question 2.** The ossicular chain transmits vibrations from the tympanic membrane to
which inner‑ear structure?
A) Cochlear duct
B) Oval window
C) Round window
D) Vestibular aqueduct
Answer: B
Explanation: The stapes footplate contacts the oval window, transmitting mechanical energy
into the cochlea.
**Question 3.** In the cochlea, the organ of Corti converts mechanical vibrations into:
A) Hydraulic pressure changes
B) Electrical impulses in auditory nerve fibers
C) Thermal energy
D) Magnetic fields
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
Answer: B
Explanation: Hair cells in the organ of Corti depolarize, generating neural signals.
**Question 4.** Which type of hearing loss is characterized by an air‑bone gap on the
audiogram?
A) Sensorineural
B) Conductive
C) Mixed
D) Central
Answer: B
Explanation: Conductive loss shows poorer air‑conduction thresholds with normal
bone‑conduction thresholds, creating an air‑bone gap.
**Question 5.** A sudden unilateral hearing loss accompanied by ear fullness and tinnitus is a
red flag that requires:
A) Immediate fitting of a hearing aid
B) Referral for medical evaluation
C) Observation for two weeks
D) Adjustment of hearing‑aid gain
Answer: B
Explanation: Sudden sensorineural loss may indicate a treatable emergency (e.g., viral
labyrinthitis) and must be medically cleared.
**Question 6.** Otosclerosis primarily affects which middle‑ear structure?
A) Malleus
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
B) Incus
C) Stapes footplate
D) Tensor tympani muscle
Answer: C
Explanation: Otosclerosis leads to fixation of the stapes footplate, causing conductive loss.
**Question 7.** Presbycusis typically presents with which audiometric pattern?
A) High‑frequency sensorineural loss
B) Low‑frequency conductive loss
C) Flat mixed loss
D) Normal thresholds with poor speech discrimination
Answer: A
Explanation: Age‑related hearing loss most commonly affects high frequencies first.
**Question 8.** In pure‑tone audiometry, the lowest intensity at which a tone is heard 50% of
the time is called the:
A) Speech reception threshold (SRT)
B) Threshold of hearing (TH)
C) Minimum audible level (MAL)
D) Detection threshold (DT)
Answer: B
Explanation: The detection threshold is the intensity at which the patient perceives the tone
half the time.
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
**Question 9.** Bone‑conduction testing is essential because it helps to differentiate:
A) Conductive from sensorineural loss
B) Mild from severe loss
C) Unilateral from bilateral loss
D) Central from peripheral loss
Answer: A
Explanation: Bone‑conduction bypasses the outer/middle ear, revealing cochlear status.
**Question 10.** Masking is required during audiometry when the non‑test ear’s threshold is
within:
A) 10 dB of the test ear
B) 15 dB of the test ear
C) 20 dB of the test ear
D) 30 dB of the test ear
Answer: C
Explanation: If the non‑test ear can hear the test signal within 20 dB, masking prevents
cross‑hearing.
**Question 11.** The Speech Reception Threshold (SRT) is generally about how many dB above
the pure‑tone average?
A) 0 dB
B) 5 dB
C) 10 dB
D) 15 dB
Dispensersination Certification Exam
Preparation
**Question 1.** Which part of the outer ear primarily functions to collect and funnel sound
waves toward the tympanic membrane?
A) External auditory canal
B) Pinna
C) Tympanic membrane
D) Eustachian tube
Answer: B
Explanation: The pinna’s shape captures sound and directs it into the external auditory canal.
**Question 2.** The ossicular chain transmits vibrations from the tympanic membrane to
which inner‑ear structure?
A) Cochlear duct
B) Oval window
C) Round window
D) Vestibular aqueduct
Answer: B
Explanation: The stapes footplate contacts the oval window, transmitting mechanical energy
into the cochlea.
**Question 3.** In the cochlea, the organ of Corti converts mechanical vibrations into:
A) Hydraulic pressure changes
B) Electrical impulses in auditory nerve fibers
C) Thermal energy
D) Magnetic fields
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
Answer: B
Explanation: Hair cells in the organ of Corti depolarize, generating neural signals.
**Question 4.** Which type of hearing loss is characterized by an air‑bone gap on the
audiogram?
A) Sensorineural
B) Conductive
C) Mixed
D) Central
Answer: B
Explanation: Conductive loss shows poorer air‑conduction thresholds with normal
bone‑conduction thresholds, creating an air‑bone gap.
**Question 5.** A sudden unilateral hearing loss accompanied by ear fullness and tinnitus is a
red flag that requires:
A) Immediate fitting of a hearing aid
B) Referral for medical evaluation
C) Observation for two weeks
D) Adjustment of hearing‑aid gain
Answer: B
Explanation: Sudden sensorineural loss may indicate a treatable emergency (e.g., viral
labyrinthitis) and must be medically cleared.
**Question 6.** Otosclerosis primarily affects which middle‑ear structure?
A) Malleus
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
B) Incus
C) Stapes footplate
D) Tensor tympani muscle
Answer: C
Explanation: Otosclerosis leads to fixation of the stapes footplate, causing conductive loss.
**Question 7.** Presbycusis typically presents with which audiometric pattern?
A) High‑frequency sensorineural loss
B) Low‑frequency conductive loss
C) Flat mixed loss
D) Normal thresholds with poor speech discrimination
Answer: A
Explanation: Age‑related hearing loss most commonly affects high frequencies first.
**Question 8.** In pure‑tone audiometry, the lowest intensity at which a tone is heard 50% of
the time is called the:
A) Speech reception threshold (SRT)
B) Threshold of hearing (TH)
C) Minimum audible level (MAL)
D) Detection threshold (DT)
Answer: B
Explanation: The detection threshold is the intensity at which the patient perceives the tone
half the time.
, [GHADE] Georgia Hearing Aid Dealers and
Dispensersination Certification Exam
Preparation
**Question 9.** Bone‑conduction testing is essential because it helps to differentiate:
A) Conductive from sensorineural loss
B) Mild from severe loss
C) Unilateral from bilateral loss
D) Central from peripheral loss
Answer: A
Explanation: Bone‑conduction bypasses the outer/middle ear, revealing cochlear status.
**Question 10.** Masking is required during audiometry when the non‑test ear’s threshold is
within:
A) 10 dB of the test ear
B) 15 dB of the test ear
C) 20 dB of the test ear
D) 30 dB of the test ear
Answer: C
Explanation: If the non‑test ear can hear the test signal within 20 dB, masking prevents
cross‑hearing.
**Question 11.** The Speech Reception Threshold (SRT) is generally about how many dB above
the pure‑tone average?
A) 0 dB
B) 5 dB
C) 10 dB
D) 15 dB
