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SPI |Sonography Principles & Instrumentation|Bundle Pack Exams
SPI |Sonography Principles & Instrumentation|Bundle Pack Exams
[Montrer plus]SPI |Sonography Principles & Instrumentation|Bundle Pack Exams
[Montrer plus]Which gain will increase the risk of bioeffects? 
a. transmit 
b. receive 
c. gain 
d. overall gain - Answer a. transmit 
 
Which of the following is considered the memory of an ultrasound instrument? 
a. pulser 
b. transducer 
c. receiver 
d. beam former 
e. digital scan converter 
f. display...
Aperçu 2 sur 11 pages
Ajouter au panierWhich gain will increase the risk of bioeffects? 
a. transmit 
b. receive 
c. gain 
d. overall gain - Answer a. transmit 
 
Which of the following is considered the memory of an ultrasound instrument? 
a. pulser 
b. transducer 
c. receiver 
d. beam former 
e. digital scan converter 
f. display...
Davies SPI REVIEW Test Bank with correct 
answers |All Verified
Aperçu 4 sur 321 pages
Ajouter au panierDavies SPI REVIEW Test Bank with correct 
answers |All Verified
Which of the following do the source and the medium determine? 
 
a. duty factor 
b. frequency 
c. propagation speed 
d. axial resolution - Answer d. 
 
Axial resolution is affected by all of the following EXCEPT 
 
a. frequency 
b. damping 
c. spatial pulse length 
d. focusing - Answer ...
Aperçu 4 sur 51 pages
Ajouter au panierWhich of the following do the source and the medium determine? 
 
a. duty factor 
b. frequency 
c. propagation speed 
d. axial resolution - Answer d. 
 
Axial resolution is affected by all of the following EXCEPT 
 
a. frequency 
b. damping 
c. spatial pulse length 
d. focusing - Answer ...
Sound waves are: - Answer longitudinal, mechanical 
 
The speed of sound in soft tissue is closest to: - Answer 1,500 m/s 
 
The frequency closest to the lower limit of ultrasound is: - Answer 15,000 Hz 
 
Which is not an acoustic variable? - Answer intensity 
 
The effects of soft tissu...
Aperçu 4 sur 33 pages
Ajouter au panierSound waves are: - Answer longitudinal, mechanical 
 
The speed of sound in soft tissue is closest to: - Answer 1,500 m/s 
 
The frequency closest to the lower limit of ultrasound is: - Answer 15,000 Hz 
 
Which is not an acoustic variable? - Answer intensity 
 
The effects of soft tissu...
What is a hydrophone? What does it measure? - Answer A small needle with piezoelectric crystal at the end. It measures pressure in a sound beam. 
 
What is a schlieren? - Answer A machine that uses acousti-optics to measure sound and light in beam profiles. 
 
What is a calorimeter? -...
Aperçu 2 sur 9 pages
Ajouter au panierWhat is a hydrophone? What does it measure? - Answer A small needle with piezoelectric crystal at the end. It measures pressure in a sound beam. 
 
What is a schlieren? - Answer A machine that uses acousti-optics to measure sound and light in beam profiles. 
 
What is a calorimeter? -...
When the ELASTICITY of a medium is HIGH, the _____ is HIGH 
 
- stiffness 
- prop. speed 
- compressibility 
- reflectivity - Answer compressibility 
 
What term describes the # of cycles that an acoustic variable completes in a second? 
 
- period 
- freq. 
- PRP 
- variable rate - ...
Aperçu 2 sur 7 pages
Ajouter au panierWhen the ELASTICITY of a medium is HIGH, the _____ is HIGH 
 
- stiffness 
- prop. speed 
- compressibility 
- reflectivity - Answer compressibility 
 
What term describes the # of cycles that an acoustic variable completes in a second? 
 
- period 
- freq. 
- PRP 
- variable rate - ...
In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - Answer Remain the Same because stiffness and density affect Propagation Speed. 
 
What is the audible range? - Answer 20-20,000Hz 
 
>20,000Hz=Ultrasound 
 
Frequency is measured in - Answe...
Aperçu 3 sur 26 pages
Ajouter au panierIn soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - Answer Remain the Same because stiffness and density affect Propagation Speed. 
 
What is the audible range? - Answer 20-20,000Hz 
 
>20,000Hz=Ultrasound 
 
Frequency is measured in - Answe...
Which artifact is illustrated by this image? - Answer a) Shadowing 
b) Side Lobe 
c) Reverberation 
d) Mirroring 
 
What is increased if the pulse duration is decreased? - Answer a) Bandwidth 
b) Line Density 
c) Frame Rate 
d) Duty Factor 
 
What is the most appropriate action for the ...
Aperçu 2 sur 7 pages
Ajouter au panierWhich artifact is illustrated by this image? - Answer a) Shadowing 
b) Side Lobe 
c) Reverberation 
d) Mirroring 
 
What is increased if the pulse duration is decreased? - Answer a) Bandwidth 
b) Line Density 
c) Frame Rate 
d) Duty Factor 
 
What is the most appropriate action for the ...
What is frequency determined by? - Answer The source, thickness of piezoelectric element and propagation speed to a lesser degree 
 
Thicker element is equal to ________ frequencies - Answer Lower 
 
What is the reciprocal of frequency and what is the symbol - Answer Period, T 
 
T...
Aperçu 2 sur 14 pages
Ajouter au panierWhat is frequency determined by? - Answer The source, thickness of piezoelectric element and propagation speed to a lesser degree 
 
Thicker element is equal to ________ frequencies - Answer Lower 
 
What is the reciprocal of frequency and what is the symbol - Answer Period, T 
 
T...
Which of the following transducers will have the worst axial resolution? 
a. Vector array, 3 MHz 
b. Linear Sequential Array, 6 MHZ 
c. Linear Phased Array 7.5 MHZ 
d. Annular Array, 6 MHz - Answer Vector array, 3 MHz 
 
A sound wave is traveling in the body and propagates from muscle to air. ...
Aperçu 3 sur 28 pages
Ajouter au panierWhich of the following transducers will have the worst axial resolution? 
a. Vector array, 3 MHz 
b. Linear Sequential Array, 6 MHZ 
c. Linear Phased Array 7.5 MHZ 
d. Annular Array, 6 MHz - Answer Vector array, 3 MHz 
 
A sound wave is traveling in the body and propagates from muscle to air. ...
Sound waves are: 
a) electric 
b) mechanical, transverse 
c) spectral 
d) longitudinal, mechanical - Answer D 
 
The speed of sound of ultrasound in soft tissue is closest to: 
a) 1,540 km/sec 
b) 1.54 km/sec 
c) 1,500 m/s 
d) 1,540 mm/sec - Answer C 
 
Which is not an acoustic var...
Aperçu 4 sur 53 pages
Ajouter au panierSound waves are: 
a) electric 
b) mechanical, transverse 
c) spectral 
d) longitudinal, mechanical - Answer D 
 
The speed of sound of ultrasound in soft tissue is closest to: 
a) 1,540 km/sec 
b) 1.54 km/sec 
c) 1,500 m/s 
d) 1,540 mm/sec - Answer C 
 
Which is not an acoustic var...
What is described as the ability of an object to resist compression and relates to the hardness of a medium? - Answer stiffness 
 
An increase in PRF would lead to - Answer an increase in DF 
 
what has the higher propagation speed? air, bone, soft tissue or water - Answer bone 
 
...
Aperçu 4 sur 52 pages
Ajouter au panierWhat is described as the ability of an object to resist compression and relates to the hardness of a medium? - Answer stiffness 
 
An increase in PRF would lead to - Answer an increase in DF 
 
what has the higher propagation speed? air, bone, soft tissue or water - Answer bone 
 
...
What is ergonomics, and what percentage of sonographers experience musculoskeletal injury related to work? - Answer studies the interaction between the sonographer, patient, and equipment to optimize the well being of the sonographer; 75% 
 
What is OSHA? - Answer regulatory agency 
 
Wh...
Aperçu 1 sur 4 pages
Ajouter au panierWhat is ergonomics, and what percentage of sonographers experience musculoskeletal injury related to work? - Answer studies the interaction between the sonographer, patient, and equipment to optimize the well being of the sonographer; 75% 
 
What is OSHA? - Answer regulatory agency 
 
Wh...
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