Acoustic impedance - Study guides, Class notes & Summaries
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Edelmen's SPI Exam Review Test Answered 100% Correctly!
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Edelman SPI review questions & Answers 2023. 
______ is the distance covered by one cycle. 
a) pulse length 
b) wavelength 
c) cycle distance 
d) cycle duration 
 
______ is the time to complete one cycle 
a) pulse duration 
b) pulse period 
c) period 
d) duration period 
 
________ is a redirection of an ultrasound bean in many directions as a result of a rough boundary between two media: 
a) refraction 
b) Rayleigh Scattering 
c) scattering 
d) reflection 
 
_________ resolution is...
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Hearing Aid Dispenser Practice Test Questions with Verified Answers
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What BEST describes the effect on the patient if you continue to lower a hearing 
instrument's kneepoint and increase the compression ratio? Choose ALL that apply. 
A. a lot of gain for soft sounds 
B. very few speech cues in a crowded party 
C. little or no gain for moderately loud sounds 
D. too much amplification in a crowded party - ANSWER-A,B, & C 
 
What frequencies would be MOST affected by a head cold? - ANSWER-Low frequencies. 250,500 
 
What is found on the bottom of the ear canal? - ...
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ILE Hearing Aid Dispenser Practice Test Questions and Answers 100% Correct
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What BEST describes the effect on the patient if you continue to lower a hearing 
instrument's kneepoint and increase the compression ratio? Choose ALL that apply. 
A. a lot of gain for soft sounds 
B. very few speech cues in a crowded party 
C. little or no gain for moderately loud sounds 
D. too much amplification in a crowded party - ANSWER-A,B, & C 
 
What frequencies would be MOST affected by a head cold? - ANSWER-Low frequencies. 250,500 
 
What is found on the bottom of the ear canal? - ...
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URR SPI Exam 1, Questions and Answers Scored A+
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URR SPI Exam 1, Questions and Answers Scored A+ 
The Doppler shift is 5000Hz. The pulse repetition frequency is 9000Hz. 
Which of the following is true? 
 
A: The peak velocity is equal to 2 m/s 
B: Aliasing will occur 
C: Range ambiguity will occur 
D: The peak pressure gradient is 36 mmHg 
B: Aliasing will occur 
 
 
 
The acoustic impedance of the matching layer: 
 
A: must be much thinner than the transducer element 
B: usually the same material as the damping layer 
C: is usually very low 
...
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Audiology Exam 3 Questions and Answers
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Audiology Exam 3 Questions and Answers 
What do behavioral tests measure? - Correct Answer ️️ -A patient's subjective 
perception of sound 
What do physiological tests measure? - Correct Answer ️️ -The objective measure of 
the body's response to sound 
What are examples of behavioral tests? - Correct Answer ️️ -Pure tone testing 
Speech audiometry 
Why are physiological tests needed? - Correct Answer ️️ -With behavioral tests, 
someone might not raise their hand if they're no...
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EOC 2 Questions Ultrasound Fundamentals
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) variables 
A wave is a traveling variations in quantities called wave _________________. 
A) length 
B) variables 
C) cycles 
D) periods 
 
 
D) acoustic 
Sound is a traveling variations in quantities called _________________ variables. 
A) wave 
B) pressure 
C) density 
D) acoustic 
 
 
C) 20,000 
Ultrasound is a sound with a frequency greater than ____________ Hz. 
A) 2 
B) 15 
C) 20,000 
D) 1540 
 
 
D) pressure, density 
Acoustic variables include __________________, ____________, and part...
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SPI Practice Test - 500 Questions and Answers with Correct Answers Graded A 2024
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. A sound wave is: 
a. transverse 
b. electromagnetic 
c. mechanical, longitudinal 
d. transverse, longitudinal 
c. mechanical, longitudinal 
2. A compression area of a sound wave is: 
a. high pressure, low density 
b. low pressure, low density 
c. high pressure, high density 
d. low pressure, high density 
c. high pressure, high density 
3. A rarefaction area of a sound wave is: 
a. high pressure, low density 
b. low pressure, low density 
c. high pressure, high density 
d. low pressure, high d...
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SLHS 305 Exam 3 Questions and Answers | New One | Grade A+
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Transduction 
Ans: The change in sound energy from one form to another 
Impedance mismatch in the ear 
Ans: 30 dB SPL loss at the oval window 
Function of the middle ear 
Ans: Equalizes pressure 
Resting potential of the scala media 
Ans: +80 mv 
Transduction stages (earliest-latest) 
Ans: 1. Condensation/rarefaction of air molecules 
2. In and out movement of the oval and round windows 
3. Back and forth movements of stereocilia 
4. Depolarization and hyperpolarization of hair cells 
5. Phas...
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SPI Practice Exam Study Questions and Answers 2024
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Which term describes blood flow changes in response to respiration? 
 
A. Phasic 
B. Parabolic 
C. Spontaneous 
D. Pulsatile -answer- Phasic 
 
What is demonstrated in this image produced by a linear array to placed on a uniform tissue-mimicking phantom? 
 
A. Time gain compensation not set properly. 
B. System has low dynamic range. 
C. Transducer crystals are damaged. 
D. Focus control is malfunctioning. -answer- Transducer crystals are damaged 
 
What is dynamic aperture? 
 
A. Aperture that ...
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Audiology chapters 6-12 || Already Passed.
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immittance correct answers an all encompassing term to describe the measurements made of the tympanic membrane impedance, compliance, or admittance 
 
compliance correct answers amount ear drum is moving 
 
admittance correct answers energy through a system 
 
impedance correct answers energy that is rejected and not transmitted through a system 
 
3 measurements of acoustic immittance meters correct answers static acoustic compliance 
 
tympanometry 
 
acoustic reflex 
 
3 contributors to imped...
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