SPI Prepry Exam Questions And Answers
What are the 3 acoustic variables? -
correct answer ✅pressure, density, distance
Which way do sound waves travel? -
correct answer ✅In a straight line
What unit is used to measure frequency? -
correct answer ✅Hz
What is the frequency range that is associated with INFRAsound? -
correct answer ✅0-20Hz
What is the standard unit of measurement for the power of a sound
wave in US imaging? -
correct answer ✅Watts
Which parameter is primarily influenced by the properties of the
medium through which the sound waves propagate? -
correct answer ✅Propagation Speed
How much would the power of a sound wave increase if its
amplitude were doubled? -
correct answer ✅4X
,SPI Prepry Exam Questions And Answers
Recall: Power is directly proportional to the square of its amplitude.
So..2 to the power of 2=4
What is the term used to describe the number of pulses
transmitted by an ultrasound transducer per unit of time (per
second?) -
correct answer ✅PRF
What parameter should the operator adjust to affect the PRF in an
ultrasound exam? -
correct answer ✅Depth
What parameter can be adjusted to change the PRP? -
correct answer ✅Depth
What would be the impact on 2 reflectors separated by 1.1mm in a
plane parallel to the ultrasound beam, when a transducer with a
spatial pulse length of 4.6mm is used? -
correct answer ✅They will appear as one reflector on the image
What describes the phenomenon where sound waves bounce back
from a boundary between 2 media with different acoustic
, SPI Prepry Exam Questions And Answers
impedances -
correct answer ✅Reflection
What are the 3 major components that contribute to attenuation of
an ultrasound wave as it passes through a medium? -
correct answer ✅Absorption, Scattering, and Reflection
If the power of a sound wave produced by a ultrasound machine is
increased from 6db to 9db by what factor does the power change?
-
correct answer ✅2X
goes up by 3, then its doubled
How is intensity measured? -
correct answer ✅W/cm^2
What describes the spreading of the sound beam energy at the end
of the far field? -
correct answer ✅Divergence
When using an unfocused continuous wave disc transducer, how
does the width of the beam diameter at the end of the near zone
What are the 3 acoustic variables? -
correct answer ✅pressure, density, distance
Which way do sound waves travel? -
correct answer ✅In a straight line
What unit is used to measure frequency? -
correct answer ✅Hz
What is the frequency range that is associated with INFRAsound? -
correct answer ✅0-20Hz
What is the standard unit of measurement for the power of a sound
wave in US imaging? -
correct answer ✅Watts
Which parameter is primarily influenced by the properties of the
medium through which the sound waves propagate? -
correct answer ✅Propagation Speed
How much would the power of a sound wave increase if its
amplitude were doubled? -
correct answer ✅4X
,SPI Prepry Exam Questions And Answers
Recall: Power is directly proportional to the square of its amplitude.
So..2 to the power of 2=4
What is the term used to describe the number of pulses
transmitted by an ultrasound transducer per unit of time (per
second?) -
correct answer ✅PRF
What parameter should the operator adjust to affect the PRF in an
ultrasound exam? -
correct answer ✅Depth
What parameter can be adjusted to change the PRP? -
correct answer ✅Depth
What would be the impact on 2 reflectors separated by 1.1mm in a
plane parallel to the ultrasound beam, when a transducer with a
spatial pulse length of 4.6mm is used? -
correct answer ✅They will appear as one reflector on the image
What describes the phenomenon where sound waves bounce back
from a boundary between 2 media with different acoustic
, SPI Prepry Exam Questions And Answers
impedances -
correct answer ✅Reflection
What are the 3 major components that contribute to attenuation of
an ultrasound wave as it passes through a medium? -
correct answer ✅Absorption, Scattering, and Reflection
If the power of a sound wave produced by a ultrasound machine is
increased from 6db to 9db by what factor does the power change?
-
correct answer ✅2X
goes up by 3, then its doubled
How is intensity measured? -
correct answer ✅W/cm^2
What describes the spreading of the sound beam energy at the end
of the far field? -
correct answer ✅Divergence
When using an unfocused continuous wave disc transducer, how
does the width of the beam diameter at the end of the near zone
