AM
EDELMAN SPI REVIEW EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
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Practice questions for this set
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A. Two waves with identical frequencies must interfere constructively.
Select the correct term
The frequency closest to the lower limit of US is :
a . 19,000 kHz
1 b . 10,000MHz
c . 20,000 msec
d . 15,000Hz
What are the units of intensity?
A. Watts
2 B. Decibels
C. Watts/cm squared
D. Decibles
For soft tissue, the approximate attenuation coefficient in dB / cm is equal to one-half in
__________.
A. wavelength, mm
3
B. frequency, Hz
C. frequency, MHz
D. impedance, rayls
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, 4/17/25, 8:06
AM
All of the following are true EXCEPT: A. Two waves with identical frequencies must interfere
constructively. B. Constructive interference is associated with waves that are in-phase. C. Out-of-
4phase waves interfere destructively. D. Waves of different frequencies may exhibit both constructive and
destructive interference at different times.
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Terms in this set (72)
What increases patient exposure? A. Exam time
A. Exam time
B. frequency
C. video taping
D. wavelength
Sound waves are: d . longitudinal , mechanical
a. electric
b. mechanical , transverse
c. spectral
d. longitudinal , mechanical
The frequency closest to the lower d . 15,000Hz
limit of US is :
a . 19,000 kHz
b . 10,000MHz
c . 20,000 msec
d . 15,000Hz
The speed of US in soft tissue is C. 1,500 m / s
closest to:
A. 1,540 km / s
B. 1.54 km/ s
C. 1,500 m / s
D. 1,540 mm / s
Which is not an acoustic variable ? d . intensity
a. density
b. pressure
c. distance
d. intensity
The effects of soft tissue on US are C. Acoustic propagation properties
called:
A. Acoustic proliferation properties
B.Dynamic effects
C. Acoustic propagation properties
D.Biologic effects
All of the following are true A. Two waves with identical frequencies must interfere constructively.
EXCEPT: A. Two waves with
identical frequencies must
interfere constructively. B.
Constructive interference is
associated with waves that are in-
phase. C. Out-of- phase waves
interfere destructively. D. Waves
of different frequencies may
exhibit both constructive and
destructive interference at
different times.
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