Review PRACTICE EXAM || MOST RECENT FINAL
EXAM 2026|2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
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Propagation speed = ____ x wavelength
a) pulse duration
b) period
c) # of cycles in the pulse
d) frequency
D
As a result of _____ the propagation speed increases.
a) increasing stiffness and increasing density
b) increasing stiffness and increasing elasticity
c) decreasing compressibility and decreasing density
d) decreasing stiffness and decreasing density.
C
Put in decreasing order of propagation speed.
a) gas
b) liquid
c) solid
cba
,If the frequency of an ultrasound wave is doubled, what happens to
the period?
a) doubles
b) halved
c) remains the same
d) 4x greater
B
The units of pulse repetition frequency are:
a) per minute
b) microseconds
c) mm/microseconds
d) MHz
A
The time from the beginning of the pulse to the end of that pulse is
_______?
a) period
b) pulse duration
c) pulse length
d) PRF
B
What happens to the speed of sound in a medium when the bulk
modulus increases?
a) faster
b) slower
c) unchanged
A
,_________ resolution is determined by the spatial pulse length
a) radial
b) image
c) axial
d) angular
A or C
If the wave's amplitude is doubles, what happens to the power?
a) nothing
b) halved
c) doubled
d) quadrupled
D
If the level of acoustic variable ranges from 55-105, what is the
amplitude?
a) 105
b) 50
c) 25
d) 55
25
Power of sound has units of:
a) dB
b) dB/cm
c) watts
d) watts/cm^2
C
, If the intensity of a sound beam remains unchanged while the beam
area is reduced in half, what has happened to the power?
a) quadrupled
b) doubled
c) halved
d) unchanged
C
Which of these intensities is the smallest?
a) SATP
b) SPTP
c) SATA
C
The duty factor for CW ultrasound is
a) 10.0
b) 1%
c) 1.0
d) 0.0%
C