Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
Which has the greatest amount of attenuation?
bone
fat
water
muscle - answer>>>bone
Which of the following will result in the greatest number of shades of gray in a digital
image display?
large pixels with many bits/pixels
small pixels with few bits/pixels
many TV lines per frame
high contrast
narrow dynamic range - answer>>>large pixels with many bits/pixels
What is not the responsibility of the sonographer?
clean the filters
adjust the recorder
adjust converter matrix
change paper - answer>>>adjust the converter matrix
With good images on the display but not on the printer, one should
increase the gain
check the scan head
check scan converter
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
adjust the recorder - answer>>>adjust the recorder
To measure the US beam intensity, use a
calibrated hydrophone
lateral oscilope
water filled phantom
tissue equivalent filter - answer>>>calibrated hydrophone
When the US machine displays only strong reflecting objects and nothing else, the
sonographer should
adjust far gain
increase output power
increase lateral resolution
adjust the TGC - answer>>>increase output power
Compression is used to
decrease the amplitude
decrease the range of amplitudes
decrease the range of frequencies - answer>>>decrease the range of amplitudes
Reject is used to
alter the appearance of highly reflective objects
alter the appearance of lowly reflected objects
improve axial resolution
improve digital scan converter sensitivity - answer>>>alter the appearance of lowly
reflected objects
If a reflector is moved twice as far away from the transducer, how will this affect the time-
of-flight of a sound pulse?
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
quadruple it
double it
no change
halve it - answer>>>double it
A single element transducer is focused
by the manufacturer
cannot be focused
by increasing power
by the sonographer - answer>>>by the manufacturer
An US machine has a digital scan converter but has an analog input signal. The machine
needs to have a
hybrid multiplexer
modem
analog to digital converter
digital monitor - answer>>>analog to digital converter
Under which of the following conditions is lateral resolution improved?
decreased beam diameter
decreased pulse diameter
decreased imaging depth
decreased pixel size
decreased spatial pulse length - answer>>>decreased beam diameter
In which way is an annular phase array transducer different than a linear phased array
transducer?
the linear is steered mechanically
the liner can have multiple focal zones
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
the annular can create a rectangular shaped image
the linear has higher pulse repetition frequency
the annular is steered mechanically - answer>>>the annular is steered mechanically
In which of these biologic tissues will sound waves propagate most quickly?
tendon
blood
lun
fat
amniotic fluid - answer>>>tendon
Which of the following best describes a sound beam?
electrical impulses
a collection of mechanical vibrations in the form of compressions and rarefactions
a wave that man can hear
electromechanical vibrations
ionic vibrations - answer>>>a collection of mechanical vibrations in the form of
compressions and rarefactions
You are performing a quality assurance study on an US system using a tissue equivalent
phantom. You make an adjustment using a knob on the system console that changes the
appearance of reflector brightness from fully bright to barely visible. What are you
evaluating?
resolution
dynamic range
vertical calibration
slice thickness - answer>>>vertical calibration
Which of the following best describes the features of a sound wave and medium that
determine the speed of sound in the medium?
2026 Accurate Real Exam Questions and
Verified Correct Answers
Which has the greatest amount of attenuation?
bone
fat
water
muscle - answer>>>bone
Which of the following will result in the greatest number of shades of gray in a digital
image display?
large pixels with many bits/pixels
small pixels with few bits/pixels
many TV lines per frame
high contrast
narrow dynamic range - answer>>>large pixels with many bits/pixels
What is not the responsibility of the sonographer?
clean the filters
adjust the recorder
adjust converter matrix
change paper - answer>>>adjust the converter matrix
With good images on the display but not on the printer, one should
increase the gain
check the scan head
check scan converter
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
adjust the recorder - answer>>>adjust the recorder
To measure the US beam intensity, use a
calibrated hydrophone
lateral oscilope
water filled phantom
tissue equivalent filter - answer>>>calibrated hydrophone
When the US machine displays only strong reflecting objects and nothing else, the
sonographer should
adjust far gain
increase output power
increase lateral resolution
adjust the TGC - answer>>>increase output power
Compression is used to
decrease the amplitude
decrease the range of amplitudes
decrease the range of frequencies - answer>>>decrease the range of amplitudes
Reject is used to
alter the appearance of highly reflective objects
alter the appearance of lowly reflected objects
improve axial resolution
improve digital scan converter sensitivity - answer>>>alter the appearance of lowly
reflected objects
If a reflector is moved twice as far away from the transducer, how will this affect the time-
of-flight of a sound pulse?
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
quadruple it
double it
no change
halve it - answer>>>double it
A single element transducer is focused
by the manufacturer
cannot be focused
by increasing power
by the sonographer - answer>>>by the manufacturer
An US machine has a digital scan converter but has an analog input signal. The machine
needs to have a
hybrid multiplexer
modem
analog to digital converter
digital monitor - answer>>>analog to digital converter
Under which of the following conditions is lateral resolution improved?
decreased beam diameter
decreased pulse diameter
decreased imaging depth
decreased pixel size
decreased spatial pulse length - answer>>>decreased beam diameter
In which way is an annular phase array transducer different than a linear phased array
transducer?
the linear is steered mechanically
the liner can have multiple focal zones
, Edelman SPI 2025 Comprehensive Exam 2025–
2026 Accurate Real Exam Questions and
Verified Correct Answers
the annular can create a rectangular shaped image
the linear has higher pulse repetition frequency
the annular is steered mechanically - answer>>>the annular is steered mechanically
In which of these biologic tissues will sound waves propagate most quickly?
tendon
blood
lun
fat
amniotic fluid - answer>>>tendon
Which of the following best describes a sound beam?
electrical impulses
a collection of mechanical vibrations in the form of compressions and rarefactions
a wave that man can hear
electromechanical vibrations
ionic vibrations - answer>>>a collection of mechanical vibrations in the form of
compressions and rarefactions
You are performing a quality assurance study on an US system using a tissue equivalent
phantom. You make an adjustment using a knob on the system console that changes the
appearance of reflector brightness from fully bright to barely visible. What are you
evaluating?
resolution
dynamic range
vertical calibration
slice thickness - answer>>>vertical calibration
Which of the following best describes the features of a sound wave and medium that
determine the speed of sound in the medium?
