1|Page
ARDMS EXAM NEWEST 2025/ 2026 COMPLETE ALL
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST EXAM!!!
If the diameter of the PZT crystal is 13 mm, which
sentence describes the
sound wave's diameter in the Fresnel zone?
a. The sound beam will be half of the diameter of the
crystal in the Fresnel zone.
b. 13 mm
c. 26 mm
d. The sound wave narrows as it leaves the transducer. -
ANSWER-d. The sound wave narrows as it leaves the
transducer.
The amount of divergence that occurs in the far field is
determined by the
sound wave's frequency and which component?
a. Line density
b. Focal zone depth
c. Diameter of the crystal
d. Speed - ANSWER-c. Diameter of the crystal
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Select the type of transducer that produces an image that
takes on the shape of a parallelogram when it is
electronically steered.
a. Linear phased array
b. Linear sequential array
c. Annular phased array
d. Convex array - ANSWER-b. Linear sequential array
Choose the type of transducer that lacks range resolution.
a. Phased array
b. Annular array
c. Continuous wave (CW)
d. Linear sequential array - ANSWER-c. Continuous wave
(CW)
In this phased array transducer, what direction will the
beam be steered?
a. 45 degrees to the right
b. Slightly to the left
c. Slightly to the right
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d. 45 degrees to the left - ANSWER-d. 45 degrees to the
left
What configuration is necessary to focus the ultrasound
wave in a linear phased array transducer?
a. Electronic slope
b. Dynamic aperture
c. PZT crystals
d. Electronic curve - ANSWER-d. Electronic curve
Which parameter is decreased by the ultrasound machine
to evade the possibility of range ambiguity when the
imaging depth is increased?
a. Number of scan lines
b. Pulse repetition frequency (PRF)
c. Pulse repetition period (PRP)
d. Persistence - ANSWER-b. Pulse repetition frequency
(PRF)
Which phrase does NOT describe an effect that focusing
has on the ultrasound beam?
a. A bigger focal zone
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b. Enhanced near zone resolution
c. Diminished lateral resolution of the far zone
d. Results in a shorter near zone - ANSWER-a. A bigger
focal zone
Select the answer that best describes how B-mode will
typically display blood vessels?
a. Hyperechoic
b. Isogenic
c. Anechoic
d. Heterogeneous - ANSWER-c. Anechoic
How deep is a reflector if the go-return time of a sound
wave is 39 us?
a. 2cm
b. 3cm
c. 5cm
d. 6cm - ANSWER-b. 3cm
Why does grayscale imaging require the use of pulsed
wave ultrasound?
ARDMS EXAM NEWEST 2025/ 2026 COMPLETE ALL
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST EXAM!!!
If the diameter of the PZT crystal is 13 mm, which
sentence describes the
sound wave's diameter in the Fresnel zone?
a. The sound beam will be half of the diameter of the
crystal in the Fresnel zone.
b. 13 mm
c. 26 mm
d. The sound wave narrows as it leaves the transducer. -
ANSWER-d. The sound wave narrows as it leaves the
transducer.
The amount of divergence that occurs in the far field is
determined by the
sound wave's frequency and which component?
a. Line density
b. Focal zone depth
c. Diameter of the crystal
d. Speed - ANSWER-c. Diameter of the crystal
,2|Page
Select the type of transducer that produces an image that
takes on the shape of a parallelogram when it is
electronically steered.
a. Linear phased array
b. Linear sequential array
c. Annular phased array
d. Convex array - ANSWER-b. Linear sequential array
Choose the type of transducer that lacks range resolution.
a. Phased array
b. Annular array
c. Continuous wave (CW)
d. Linear sequential array - ANSWER-c. Continuous wave
(CW)
In this phased array transducer, what direction will the
beam be steered?
a. 45 degrees to the right
b. Slightly to the left
c. Slightly to the right
,3|Page
d. 45 degrees to the left - ANSWER-d. 45 degrees to the
left
What configuration is necessary to focus the ultrasound
wave in a linear phased array transducer?
a. Electronic slope
b. Dynamic aperture
c. PZT crystals
d. Electronic curve - ANSWER-d. Electronic curve
Which parameter is decreased by the ultrasound machine
to evade the possibility of range ambiguity when the
imaging depth is increased?
a. Number of scan lines
b. Pulse repetition frequency (PRF)
c. Pulse repetition period (PRP)
d. Persistence - ANSWER-b. Pulse repetition frequency
(PRF)
Which phrase does NOT describe an effect that focusing
has on the ultrasound beam?
a. A bigger focal zone
, 4|Page
b. Enhanced near zone resolution
c. Diminished lateral resolution of the far zone
d. Results in a shorter near zone - ANSWER-a. A bigger
focal zone
Select the answer that best describes how B-mode will
typically display blood vessels?
a. Hyperechoic
b. Isogenic
c. Anechoic
d. Heterogeneous - ANSWER-c. Anechoic
How deep is a reflector if the go-return time of a sound
wave is 39 us?
a. 2cm
b. 3cm
c. 5cm
d. 6cm - ANSWER-b. 3cm
Why does grayscale imaging require the use of pulsed
wave ultrasound?
