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SPI Board Practice Exam Questions and Answers Graded A 2024
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Which of the following is described as the ability of an object to resist compression and relates to the hardness of the medium? a. Stiffness b. Density c. Pressure d. Inertia -answer- a. Stiffness An increase in pulse repetition frequency would lead to: a. an increase in DF b. an increas...

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  • September 17, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • spi board practice exam questions and answers
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SPI Board Practice Exam Questions



SPI Board Practice Exam Questions and
Answers Graded A 2024
Which of the following is described as the ability of an object to resist compression and
relates to the hardness of the medium?
a. Stiffness
b. Density
c. Pressure
d. Inertia -answer- ✔a. Stiffness

An increase in pulse repetition frequency would lead to:
a. an increase in DF
b. an increase in pulse duration
c. an increase in the number of cycles
d. a decrease in resolution -answer- ✔a. an increase in DF
? is this b/c PRP and PRF are reciprocals so if you increase PRF you decrease PRP
which has an inverse relationship to DF?

Which of the following would have the highest propagation speed?
a. Air
b. Bone
c. Soft tissue
d. Water -answer- ✔b. Bone

Which of the following would be the lowest propagation speed?
a. Water
b. soft tissue
c. Bone
d. Lung Tissue -answer- ✔D. Lung Tissue (Air)

As imaging depth increases, the pulse repetition frequency must:
a. not change
b. increase
c. decrease
d. pulse repetition frequency doe not relate to imaging depth -answer- ✔C. decrease

Which of the following describes the amount of refraction that occurs at the interface?
a. Bernoulli's Law
b. Posieuille's law
c. Law of reflection
d. Snells Law -answer- ✔d. Snells law

Pressure is typically expressed in :
SPI Board Practice Questions

,SPI Board Practice Exam Questions

a. Frequency
b. Pascals
c. Decibels
d. Kilograms per centimeter cubed -answer- ✔B. Pascals

The typical range of frequency for diagnostic ultrasound imaging is:
a. 20 to 20,0000 HZ
b. 1 to 20 MHZ
c. 10 to 20 MHZ
d. 12 to 100 MHZ -answer- ✔B. 1 to 20 MHZ

actual 2-12MHZ

The attenuation coefficient in soft tissue is equal to :.
a. one half of the operating frequency
b. double the operating frequency
c. Frequency times path length
d. the total decibels -answer- ✔a. one half the operating frequency

Micro denotes:
a. Millionth
b. Hundreth
c. Million
d. Billionth -answer- ✔a. millionth

Which of the following is described as the distance over which one cycle occurs?
a. Pulse Duration
b. Duty Factor
c. Period
d. Wavelength -answer- ✔d. wavelength

All of the following are true about stiffness except;
a. it is defined as the ability of an object to resist compression
b. stiffness and propagation speed are indirectly associated
c. increasing stiffness increases propagation speed
d. stiffness may also be referred to as elasticity -answer- ✔b - stiffness and propagation
speed are indirectly associated.

they are directly associated .you increase stiffness and your prop speed increases

Areas of high pressure and density are referred to as :
a. Compressions
b. Rarefractions
c. Condensations
d. Rarefractions -answer- ✔a . compressions

SPI Board Practice Questions

, SPI Board Practice Exam Questions


Spatial pulse length can be calculated by :
a. multiplying the # of cycles times the frequency
b. dividing the period by the frequency
c. multiplying the number of cycles times the wavelength
d. dividing the number of cycles by the wavelength -answer- ✔c. # of cycles x
wavelength

Density is typically measured in :
a. Kg per centimeter cubed
b. millimeters
c. watts per centimeter squared
d. pascals -answer- ✔a.Kg per centimeters cubed

As a sound wave travels through the human body, the intensity of the sound wave
decreases as a result of :
a. attenuation
b. absorption
c. scattering
d. all of the above -answer- ✔d. all of the above

What is the total amount of attenuation that occurs if a 6.0 MHZ sound beam travels
through 4 cm soft tissue?
a. 24 db
b. 12 db
c. 6 db
d. none of the above -answer- ✔.5 x 6 = 3 Ac = .5 in soft tissue x Frequency
3 x 4 = 12 Total attenuation = Ac x pathlength
b. 12 db

As imaging depth increases, pulse repetition period :
a. remains constant
b. increases
c. decreases
d. doubles -answer- ✔b. increase
** imaging deeper in the body takes a longer time for the echoes to return to the
transducer, so the time between pulses (PRP) increases - because this takes longer to
do the PRF decreases showing the reciprocal relationship between PRP and PRF
imaging of superficial structures, the echoes from each pulse return to the transducer
quickly so the time between pulse (PRP) is short/ decrease/less

If the pulse repetition frequency increases, then the duty factor:
a. remains constant
b. increases
c. decreases
d. doubles -answer- ✔DF = PD/ PRP
SPI Board Practice Questions

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