ARDMS - SPI EXAM updated 2026
COMPLETEACTUAL EXAM QUESTIONS
WITH ACCURATE ANSWERS
An image is bright in the near field but darker in the far field. Which process is
responsible for this effect?
A) Propagation speed variations
B) Digital scan conversion
C) Acoustic attenuation
D) Refraction - Correct Answer - C) Acoustic attenuation
If a calcification is present but there is not much shadowing, what can you adjust
to demonstrate more of the shadow?
A) Decrease line density
B) Adjust focal position to low
C) Increase frequency
D) Increase gain - Correct Answer - C) Increase frequency
What demonstrates how much magnification will occur in the receiver?
A) Rectification
B) Gain
C) Output power
D) PRF - Correct Answer - B) Gain
pg. 1
,When adjusting the output power, which of the following system controls is
affected?
A) Pulser
B) Beam former
C) Signal processor
D) Reciever - Correct Answer - A) Pulser
What commonly caused localized non-uniformity along the vertical axis in a Bmode
image?
A) Poor lateral resolution
B) Improper TGC setting
C) Defective elements
D) Malfunctioning image processor - Correct Answer - B) Improper TGC setting
The center operating frequency of a transducer is determined by: A)
impedance matching layer. B) crystal thickness.
C) bandwidth.
D) crystal shape. - Correct Answer - B) crystal thickness.
Coupling gel is used to:
A) improve axial resolution.
B) increase damping.
C) increase transmission.
D) increase reflection factor. - Correct Answer - C) increase transmission.
The 3D profile of the beam in a linear array is controlled by: A) acoustic
lens.
pg. 2
, B) transmit focus.
C) phasing.
D) beam former. - Correct Answer - A) acoustic lens.
Which transducer employs electronic beam steering to create a wide field of view?
A) Curvilinear
B) Mechanical transducer
C) Phased array
D) Linear sequential - Correct Answer - C) Phased array
Dynamic focusing is used by: A) all
array transducers.
B) only phased arrays.
C) none.
D) only curved arrays. - Correct Answer - A) all array transducers.
A thinner element will have: A)
higher curie temperature. B)
longer wavelength.
C) higher frequency.
D) poor frame rate. - Correct Answer - C) higher frequency.
Which statement refers to the process of phasing?
A) Electronic beam steering
B) Acoustic lens
pg. 3
COMPLETEACTUAL EXAM QUESTIONS
WITH ACCURATE ANSWERS
An image is bright in the near field but darker in the far field. Which process is
responsible for this effect?
A) Propagation speed variations
B) Digital scan conversion
C) Acoustic attenuation
D) Refraction - Correct Answer - C) Acoustic attenuation
If a calcification is present but there is not much shadowing, what can you adjust
to demonstrate more of the shadow?
A) Decrease line density
B) Adjust focal position to low
C) Increase frequency
D) Increase gain - Correct Answer - C) Increase frequency
What demonstrates how much magnification will occur in the receiver?
A) Rectification
B) Gain
C) Output power
D) PRF - Correct Answer - B) Gain
pg. 1
,When adjusting the output power, which of the following system controls is
affected?
A) Pulser
B) Beam former
C) Signal processor
D) Reciever - Correct Answer - A) Pulser
What commonly caused localized non-uniformity along the vertical axis in a Bmode
image?
A) Poor lateral resolution
B) Improper TGC setting
C) Defective elements
D) Malfunctioning image processor - Correct Answer - B) Improper TGC setting
The center operating frequency of a transducer is determined by: A)
impedance matching layer. B) crystal thickness.
C) bandwidth.
D) crystal shape. - Correct Answer - B) crystal thickness.
Coupling gel is used to:
A) improve axial resolution.
B) increase damping.
C) increase transmission.
D) increase reflection factor. - Correct Answer - C) increase transmission.
The 3D profile of the beam in a linear array is controlled by: A) acoustic
lens.
pg. 2
, B) transmit focus.
C) phasing.
D) beam former. - Correct Answer - A) acoustic lens.
Which transducer employs electronic beam steering to create a wide field of view?
A) Curvilinear
B) Mechanical transducer
C) Phased array
D) Linear sequential - Correct Answer - C) Phased array
Dynamic focusing is used by: A) all
array transducers.
B) only phased arrays.
C) none.
D) only curved arrays. - Correct Answer - A) all array transducers.
A thinner element will have: A)
higher curie temperature. B)
longer wavelength.
C) higher frequency.
D) poor frame rate. - Correct Answer - C) higher frequency.
Which statement refers to the process of phasing?
A) Electronic beam steering
B) Acoustic lens
pg. 3
