Exam
EDELMAN SPI EXAM /EDELMAN SPI EXAM
PREPARATION/EDELMAN SPI PRACTICE EXAM WITH QUESTIONS
AND CORRECT ANSWERS| BRAND NEW VERSION!
Which of the following situations should result in a cessation of the use of
diagnostic ultrasound?
a: the presence of transient cavitation
b: when tissue temperature is more than 1 degree Centigrade above normal
c: the benefit outweighs the risk.
d: when a pregnant mother has a very high fever
e: the benefits are outweighed by the risks. - Correct Answer-e: the benefits are
outweighed by the risks.
A sound wave with a frequency of 5 MHz is travelling in soft tissue. What is the
wavelength of this sound?
a: 0.5 mm
b: 0.3 cm
c: 5 mm
d: 0.3 mm - Correct Answer-d: 0.3 mm
All the following correctly describe dynamic range EXCEPT:
a: relative
b: ratio
c: absolute
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d: comparison
e: logarhythmic - Correct Answer-c: absolute
All the following will improve temporal resolution EXCEPT:
a: slower speed of sound in a medium
b: increased line density
c: single rather than multi focus
d: higher frame rate - Correct Answer-b: increased line density
Which of these choices has the greatest effect upon depth of view?
a: pulse repetition period
b: transducer output
c: acoustic impedance
d: pulse duration
e: spatial pulse length - Correct Answer-a: pulse repetition period
What is the accuracy of reflector depth position on an A-mode, B-mode or M-
mode display called?
a: axial resolution
b: speed error artifact
c: range resolution
d: horizontal calibration
e: depth calibration - Correct Answer-e: depth calibration
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All the following are true EXCEPT:
a: Out-of-phase waves interfere destructively.
b: Constructive interference is associated with waves that are in-phase.
c: Waves of different frequencies may exhibit both constructive and destructive
interference at different times.
d: Two waves with identical frequencies must interfere constructively - Correct
Answer-d: Two waves with identical frequencies must interfere constructively
What is the maximum number of shades of gray that can be represented by 5
bits?
a: 32 shades
b: 64 shades
c: 10 shades - Correct Answer-a: 32 shades
How much bigger is a billion (9 zeroes) than a thousand (3 zeroes)?
a: 1,000,000,000
b: 1,000
c: 100
d: 1,000,000
e: 10,000 - Correct Answer-d: 1,000,000
You are performing a quality assurance study on an ultrasound system using a
tissue equivalent phantom. You make an adjustment using a knob on the system
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console that changes the appearance of reflector brightness from fully bright to
barely visible. What are you evaluating?
a: system sensitivity
b: vertical calibration
c: dynamic range
d: slice thickness
e: resolution - Correct Answer-a: system sensitivity
Which of the following factors determine the spatial resolution of a monitor?
a: the number of pixels per bit
b: the number of lines per frame
c: dynamic range
d:: the number of bits per inch
e: the number pixels per inch - Correct Answer-b: the number of lines per frame
Which of the following statement about Doppler is most correct?
Non directional doppler uses phase-singular processing while bi-directional uses?
a: non-directional Doppler uses phase-singular processing, while bi-directional
Doppler uses phase-quadrature processing.
b: non-directional Doppler uses non-coherent processing, while bi-directional
Doppler uses phase-quadrature processing
c: non-directional Doppler uses autocorrelation processing, while bi-directional
Doppler uses phase-quadrature processing. - Correct Answer-b: non-directional
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