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SPI PRACTICE EXAM LATEST QUIZZES & ANS!!
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SPI PRACTICE EXAM LATEST QUIZZES & ANS!!
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Name: Score:460 Multiple choice questions
Term 1 of 460
The propagation speed of sound at any frequency is determined by:
elastic properties of the medium
the duration of a cycle of compressions and rarefactions
the source of sound
the intensity of the sound signal
Term 2 of 460
The formula for SPL is:
n x wavelength
pxc
byte
nxt
Term 3 of 460
Snell's law states that:
the depth of penetration decreases as frequency increases
the angle of incidence is equal to the angle of refraction
energy can neither be created nor destroyed
the ratio of wave propagation speeds in two media in contact is proportional to the ratio of
the sines of two angles
,Term 4 of 460
If the Pulse Repetition Period is 260 µsec, the maximum depth setting in soft tissue is:
200 mm (20 cm)
44 db
30 hz
2.5 mm
Term 5 of 460
Which one of the following describes the relationship between frequency and period?
unrelated
proportional
reciprocal
logarithmically related
Term 6 of 460
The time for one pulse:
pixel
fixed
DF
PD
,Term 7 of 460
Which one of the following will NOT affect temporal resolution?
packet size
persistence
maximum depth setting
slice thickness
Term 8 of 460
To which of the following is Rayleigh scattering related?
diameter of the transducer squared
frequency raised to the 4th power
half of the SPL
half of the wavelength
Term 9 of 460
If the frequency is 5 MHz the period is:
10 mhz
13 microseconds
2 milliseconds
0.2 microseconds
, Term 10 of 460
The number of cycles per second is a:
frequency
time
energy
hertz
Term 11 of 460
In order to limit patient exposure to acoustic energy, which method is best?
high transmitter output and low receiver gain
high reject and high transmitter output
high near gain and low far gain
low transmitter output and high receiver
Term 12 of 460
Preprocessing occurs before:
memory
transducer acquisition
patient arrival
analog to digital conversion
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