Understanding Ultrasound Physics Fourth Edition -
Edelman (2026) Exam || Most Recent Exam 2026-2027
Actual Complete Real Exam Questions And Correct
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What will lower the value of an ultrasound system's
lateral resolution? a. decrease the # of cycles in the
pulse
b. increase the effective damping material
c. increase the pulse repetition period
d. use an acoustic lens - ANSWER -c. use an acoustic lens
which of the following focusing techniques is different
from the others?
a.
lens
b. curved
crystal
c.
fixed
d. phased - ANSWER -d.
phased
,which of the following techniques is
internal focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -b.
curved crystal
which of the following techniques is
external focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -
a. lens
Which of these terms means adjustable focusing or
mult-focusing?
a. dynamic
aperature
b.
harmonics
c. frequency
agility
d. phased array - ANSWER -d.
phased array
,which of these techniques is consistent with variable or
multi-focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -c.
electronic
All of the following occur with
focusing except: a. lower intensity at
the focus
b. shorter near zone length
c.more compact focal zone
d. smaller diameter beam diameter at the end of the near zone -
ANSWER -a.
lower intensity at the focus
in which region of a sound beam is
focusing most effective?
a. the very shallow
near zone
b. the end of the
near zone
c. very deep in the
far zone
d. throughout its entire length - ANSWER -b. the
end of the near zone
, T/F: in comparison to other locations along the length of an
ultrasound beam,
focusing is generally ineffective in the far zone. -
ANSWER -True
Two ultrasound systems have near zone lengths of 8cm. At the
focus, System S's lateral resolution is 3.0mm, whereas System
C's is 5.0mm. Which system is most likely to appropriately
display two small body structures that lie, one in front of the
other, at depths of 8.6 and 9.0mm? a. System C
b. System S
c. both have comparable quality
d. cannot be determined - ANSWER -d. cannot be determined
The diameter of a disc-shaped, unfocused PZT crystal is 1cm.
What is the best estimate for the minimum lateral resolution of
the ultrasound system? a. 1 mm
b. 5 mm
c. 1 cm
d. 5 cm - ANSWER -b. 5mm
The diameter of a disc-shaped, unfocused PZT crystal is 1.2cm,
The near zone length is 8cm. What is the best estimate for the
lateral resolution at a depth of 16cm?
a. 0.6cm
b. 1.2cm
c. 8cm
d. 16cm - ANSWER -b. 1.2 cm
Edelman (2026) Exam || Most Recent Exam 2026-2027
Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ |
Guaranteed Success!! Newest Exam | Just Released!!
What will lower the value of an ultrasound system's
lateral resolution? a. decrease the # of cycles in the
pulse
b. increase the effective damping material
c. increase the pulse repetition period
d. use an acoustic lens - ANSWER -c. use an acoustic lens
which of the following focusing techniques is different
from the others?
a.
lens
b. curved
crystal
c.
fixed
d. phased - ANSWER -d.
phased
,which of the following techniques is
internal focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -b.
curved crystal
which of the following techniques is
external focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -
a. lens
Which of these terms means adjustable focusing or
mult-focusing?
a. dynamic
aperature
b.
harmonics
c. frequency
agility
d. phased array - ANSWER -d.
phased array
,which of these techniques is consistent with variable or
multi-focusing?
a.
lens
b. curved
crystal
c. electronic - ANSWER -c.
electronic
All of the following occur with
focusing except: a. lower intensity at
the focus
b. shorter near zone length
c.more compact focal zone
d. smaller diameter beam diameter at the end of the near zone -
ANSWER -a.
lower intensity at the focus
in which region of a sound beam is
focusing most effective?
a. the very shallow
near zone
b. the end of the
near zone
c. very deep in the
far zone
d. throughout its entire length - ANSWER -b. the
end of the near zone
, T/F: in comparison to other locations along the length of an
ultrasound beam,
focusing is generally ineffective in the far zone. -
ANSWER -True
Two ultrasound systems have near zone lengths of 8cm. At the
focus, System S's lateral resolution is 3.0mm, whereas System
C's is 5.0mm. Which system is most likely to appropriately
display two small body structures that lie, one in front of the
other, at depths of 8.6 and 9.0mm? a. System C
b. System S
c. both have comparable quality
d. cannot be determined - ANSWER -d. cannot be determined
The diameter of a disc-shaped, unfocused PZT crystal is 1cm.
What is the best estimate for the minimum lateral resolution of
the ultrasound system? a. 1 mm
b. 5 mm
c. 1 cm
d. 5 cm - ANSWER -b. 5mm
The diameter of a disc-shaped, unfocused PZT crystal is 1.2cm,
The near zone length is 8cm. What is the best estimate for the
lateral resolution at a depth of 16cm?
a. 0.6cm
b. 1.2cm
c. 8cm
d. 16cm - ANSWER -b. 1.2 cm
