Edelman SPI Comprehensive Exam
Edelman SPI Comprehensive Exam 3/Edelman
SPI Exam Predictor TEST BANK /Edelman
SPI Practice Exam With Complete Questions
And Correct Answers with Deatailed
Rationales Graded A+
Why is the digital to analog (D to A) converter needed?
a. The scan converter signal needs to be converted to digital
b. The scan converter signal is digital and needs to be converted from analog
c. The display is digital and needs to be converted from analog
d. So the manufacturers can charge more for the machine - Correct Answer :b.
Two digital scan converters are undergoing evaluation. Both produce images of the same size.
System A has 100,000 pixels, with 10 bits assigned to each. System B, however, has 250,000
pixels, with 12 bits assigned to each. Which system is more likely to have the capability of
displaying very subtle differences in gray scale?
a. System A
b. System B - Correct Answer :b.
A video display that is limited to only black and white, with no other shades of gray, is called
_____________.
a. Binary
A+ TEST BANK 1
, Edelman SPI Comprehensive Exam
b. Monochrome
c. Bistable
d. Unichrome - Correct Answer :c.
In a standard cathode ray tube used to display US images, what are the charged particles that
are emitted from a "gun" form the rear of the tube?
a. Electrons
b. Photons
c. Positrons
d. Neutrons - Correct Answer :a.
How does a cathode ray tube steer the charged particles emitted by the electron gun, located in
the back of the tube, so that they sweep across the front screen?
a. Phasing
b. Mechanical steering
c. Using a magnetic field
d. Reflecting off of a mirror - Correct Answer :c.
Which type of display has two polarized filters in front of a light source with crystals that twist
and untwist?
a. Cathode Ray Tube
b. Prism Display
c. Spectral Analysis
d. Liquid Crystal Display - Correct Answer :d.
A+ TEST BANK 2
, Edelman SPI Comprehensive Exam
With 6 bits, what is the largest number of different shades of gray that can be stored?
a. 8
b. 16
c. 64
d. 256 - Correct Answer :c.
What control adjustment would make the image to the right better?
a. Overall gain
b. Power
c. TGC
d. Focal zone - Correct Answer :a.
What happens to a digital image when the pixel density is increased?
a. There is more spatial detail
b. The temporal resolution increases
c. The larger the field of view
d. There are more shades of gray - Correct Answer :a.
Acoustic artifacts include
a. Images of reflectors in an inappropriate position
b. Image of reflectors of incorrect brightness
A+ TEST BANK 3
, Edelman SPI Comprehensive Exam
c. Images that do not correspond to anatomical structures
d. All of the above - Correct Answer :d.
Side lobe artifact results from which of the following?
a. Sound beams bending
b. Linear array transducer architecture
c. Increased attenuation in the far field
d. Acoustic energy radiating in a different direction other than the beam's main axis - Correct
Answer :d.
If red blood cells are traveling toward a transducer, the frequency emitted by the transducer is
___________ the frequency reflected from the red blood cells
a. Greater than
b. Equal to
c. Less than - Correct Answer :c.
What can be said of the Doppler shift when the sound beam is parallel to the direction of travel
of the red blood cells?
a. It is at a maximum
b. It is half of maximum
c. It is absent
d. It is low - Correct Answer :a.
Continuous Wave instrumentation is used in
A+ TEST BANK 4
Edelman SPI Comprehensive Exam 3/Edelman
SPI Exam Predictor TEST BANK /Edelman
SPI Practice Exam With Complete Questions
And Correct Answers with Deatailed
Rationales Graded A+
Why is the digital to analog (D to A) converter needed?
a. The scan converter signal needs to be converted to digital
b. The scan converter signal is digital and needs to be converted from analog
c. The display is digital and needs to be converted from analog
d. So the manufacturers can charge more for the machine - Correct Answer :b.
Two digital scan converters are undergoing evaluation. Both produce images of the same size.
System A has 100,000 pixels, with 10 bits assigned to each. System B, however, has 250,000
pixels, with 12 bits assigned to each. Which system is more likely to have the capability of
displaying very subtle differences in gray scale?
a. System A
b. System B - Correct Answer :b.
A video display that is limited to only black and white, with no other shades of gray, is called
_____________.
a. Binary
A+ TEST BANK 1
, Edelman SPI Comprehensive Exam
b. Monochrome
c. Bistable
d. Unichrome - Correct Answer :c.
In a standard cathode ray tube used to display US images, what are the charged particles that
are emitted from a "gun" form the rear of the tube?
a. Electrons
b. Photons
c. Positrons
d. Neutrons - Correct Answer :a.
How does a cathode ray tube steer the charged particles emitted by the electron gun, located in
the back of the tube, so that they sweep across the front screen?
a. Phasing
b. Mechanical steering
c. Using a magnetic field
d. Reflecting off of a mirror - Correct Answer :c.
Which type of display has two polarized filters in front of a light source with crystals that twist
and untwist?
a. Cathode Ray Tube
b. Prism Display
c. Spectral Analysis
d. Liquid Crystal Display - Correct Answer :d.
A+ TEST BANK 2
, Edelman SPI Comprehensive Exam
With 6 bits, what is the largest number of different shades of gray that can be stored?
a. 8
b. 16
c. 64
d. 256 - Correct Answer :c.
What control adjustment would make the image to the right better?
a. Overall gain
b. Power
c. TGC
d. Focal zone - Correct Answer :a.
What happens to a digital image when the pixel density is increased?
a. There is more spatial detail
b. The temporal resolution increases
c. The larger the field of view
d. There are more shades of gray - Correct Answer :a.
Acoustic artifacts include
a. Images of reflectors in an inappropriate position
b. Image of reflectors of incorrect brightness
A+ TEST BANK 3
, Edelman SPI Comprehensive Exam
c. Images that do not correspond to anatomical structures
d. All of the above - Correct Answer :d.
Side lobe artifact results from which of the following?
a. Sound beams bending
b. Linear array transducer architecture
c. Increased attenuation in the far field
d. Acoustic energy radiating in a different direction other than the beam's main axis - Correct
Answer :d.
If red blood cells are traveling toward a transducer, the frequency emitted by the transducer is
___________ the frequency reflected from the red blood cells
a. Greater than
b. Equal to
c. Less than - Correct Answer :c.
What can be said of the Doppler shift when the sound beam is parallel to the direction of travel
of the red blood cells?
a. It is at a maximum
b. It is half of maximum
c. It is absent
d. It is low - Correct Answer :a.
Continuous Wave instrumentation is used in
A+ TEST BANK 4
