SPI PRACTICE TEST EXAM 2025 UPDATES QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+ (BRAND NEW VISION)
The compensation (TGC) control
a. Compensate for machine instability in warm-up
b. Compensates for attenuation
c. Compensates for transducer aging and ambient light in exam room
d. Decreases patient examination time - answersb.
What must be known in order to calculate distance to a reflector?
a. Attenuation, propagation speed, density
b. Attenuation, impedance
c. Travel time, propagation speed
d. Density, propagation speed - answersc.
If the following is increases, flow increases
a. Pressure Difference
b. Resistance
c. Length of vessel
d. A and B - answersa.
The Doppler shift is zero when the angle between the sound direction and the movement of the
flow direction is ____________ degrees.
,a. 30
b. 60
c. 90
d. 45 - answersc.
Doppler shift frequency does not depend on:
a. Amplitude
b. Flow velocity
c. Operating frequency
d. Propagation speed - answersa.
A slice-thickness phantom measures which plane of the transducer?
a. the scanning plane
b. The elevation plane
c. The azimuthal plane
d. The temporal plane - answersb.
Which of the following is not a technique that will reduce grating lobes?
a. Tissue harmonic imaging
b. Apodization
c. Subdicing
d. Edge enhancement - answersd.
,The test object to the right has a propagation speed of 1,540 m/s, and attenuates like soft-
tissue. It is useful for evaluating for caliper accuracy, dead zone, axial and lateral resolution, and
grayscale contrast. It is a:
a. Doppler phantom
b. AIUM 100mm phantom
c. Tissue equivalent phantom
d. Beam profile phantom - answersc.
The dynamic range of an US system is defined as:
a. The speed with which an ultrasound examination can be performed
b. The range of pulser voltages applied to the transducer
c. The range over which the transducer can be manipulated
d. The ratio of the maximum to the minimum amplitude that can be displayed - answersd.
What control should be used to fix the image to the right?
a. Increase the frequency
b. Increase overall gain
c. Lower the frequency
d. Raise the focal zone - answersc.
If the propagation speed is 1.6 mm/microseconds, the US machine assumes a propagation
speed that is too __________ and will display reflectors too ___________ to the transducer.
(Think!)
, a. High; close to
b. High; far from
c. Low; close to
d. Low; far from - answersc.
If I wanted to evaluate the contrast resolution of a transducer or US system, I would buy a:
a. Doppler phantom
b. AIUM 100mm phantom
c. Tissue equivalent phantom
d. Beam profile phantom - answersc.
What is needed to account for the space between scan lines (typically in the far field) containing
no signal information?
a. Analog scan converter
b. Compression
c. Demodulation
d. Fill-in interpolation - answersd.
In what direction is the blood flowing in this image?
a. Left to right
b. Right to left
c. Not enough information to tell - answersb.
VERIFIED ANSWERS ALREADY GRADED A+ (BRAND NEW VISION)
The compensation (TGC) control
a. Compensate for machine instability in warm-up
b. Compensates for attenuation
c. Compensates for transducer aging and ambient light in exam room
d. Decreases patient examination time - answersb.
What must be known in order to calculate distance to a reflector?
a. Attenuation, propagation speed, density
b. Attenuation, impedance
c. Travel time, propagation speed
d. Density, propagation speed - answersc.
If the following is increases, flow increases
a. Pressure Difference
b. Resistance
c. Length of vessel
d. A and B - answersa.
The Doppler shift is zero when the angle between the sound direction and the movement of the
flow direction is ____________ degrees.
,a. 30
b. 60
c. 90
d. 45 - answersc.
Doppler shift frequency does not depend on:
a. Amplitude
b. Flow velocity
c. Operating frequency
d. Propagation speed - answersa.
A slice-thickness phantom measures which plane of the transducer?
a. the scanning plane
b. The elevation plane
c. The azimuthal plane
d. The temporal plane - answersb.
Which of the following is not a technique that will reduce grating lobes?
a. Tissue harmonic imaging
b. Apodization
c. Subdicing
d. Edge enhancement - answersd.
,The test object to the right has a propagation speed of 1,540 m/s, and attenuates like soft-
tissue. It is useful for evaluating for caliper accuracy, dead zone, axial and lateral resolution, and
grayscale contrast. It is a:
a. Doppler phantom
b. AIUM 100mm phantom
c. Tissue equivalent phantom
d. Beam profile phantom - answersc.
The dynamic range of an US system is defined as:
a. The speed with which an ultrasound examination can be performed
b. The range of pulser voltages applied to the transducer
c. The range over which the transducer can be manipulated
d. The ratio of the maximum to the minimum amplitude that can be displayed - answersd.
What control should be used to fix the image to the right?
a. Increase the frequency
b. Increase overall gain
c. Lower the frequency
d. Raise the focal zone - answersc.
If the propagation speed is 1.6 mm/microseconds, the US machine assumes a propagation
speed that is too __________ and will display reflectors too ___________ to the transducer.
(Think!)
, a. High; close to
b. High; far from
c. Low; close to
d. Low; far from - answersc.
If I wanted to evaluate the contrast resolution of a transducer or US system, I would buy a:
a. Doppler phantom
b. AIUM 100mm phantom
c. Tissue equivalent phantom
d. Beam profile phantom - answersc.
What is needed to account for the space between scan lines (typically in the far field) containing
no signal information?
a. Analog scan converter
b. Compression
c. Demodulation
d. Fill-in interpolation - answersd.
In what direction is the blood flowing in this image?
a. Left to right
b. Right to left
c. Not enough information to tell - answersb.
