EDELMAN SPI 2025 – 2026
COMPREHENSIVE EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
/ARDMS SPI EXAM
With normal incidence, what factors affect refraction of US?
propagation speeds
frequencies
attenuation coefficients
none of the above - ANSWERS-none of the above
True or False. With right angle incidence, reflections are
always generated at a boundary if the propagation speeds
of the media are different. - ANSWERS-False
,_____ is a redirection of US in many directions as a result of
a rough boundary between two media.
refraction
Rayleigh scattering
scattering
reflection - ANSWERS-scattering
Which of the following tissues is most likely to create
Rayleigh scattering?
red blood cells
muscle
fat
bone - ANSWERS-red blood cells
Which is not an acoustic variable?
density
pressure
,distance
intensity - ANSWERS-intensity
The effects of soft tissue on US are called:
acoustic proliferation properties
dynamic effects
acoustic propagation properties
biologic effects - ANSWERS-acoustic propagation properties
All of the following are true EXCEPT:
Two waves with identical frequencies must interfere
constructively
Constructive interference is associated with waves that are
in-phase
Out-of-phase waves interfere destructively
Waves of different frequencies may exhibit both
constructive and destructive interference at different times -
ANSWERS-Two waves with identical frequencies must
interfere constructively
, Put in decreasing order:
deca
deci
micro
centi - ANSWERS-deca, deci, centi, micro
____ is the time to complete one cycle.
pulse duration
pulse period
period
duration period - ANSWERS-period
Which of the following sound waves is ultrasonic and least
useful in diagnostic imaging?
30KHz
8 MHz
8,000 Hz
3,000 kHz
COMPREHENSIVE EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
/ARDMS SPI EXAM
With normal incidence, what factors affect refraction of US?
propagation speeds
frequencies
attenuation coefficients
none of the above - ANSWERS-none of the above
True or False. With right angle incidence, reflections are
always generated at a boundary if the propagation speeds
of the media are different. - ANSWERS-False
,_____ is a redirection of US in many directions as a result of
a rough boundary between two media.
refraction
Rayleigh scattering
scattering
reflection - ANSWERS-scattering
Which of the following tissues is most likely to create
Rayleigh scattering?
red blood cells
muscle
fat
bone - ANSWERS-red blood cells
Which is not an acoustic variable?
density
pressure
,distance
intensity - ANSWERS-intensity
The effects of soft tissue on US are called:
acoustic proliferation properties
dynamic effects
acoustic propagation properties
biologic effects - ANSWERS-acoustic propagation properties
All of the following are true EXCEPT:
Two waves with identical frequencies must interfere
constructively
Constructive interference is associated with waves that are
in-phase
Out-of-phase waves interfere destructively
Waves of different frequencies may exhibit both
constructive and destructive interference at different times -
ANSWERS-Two waves with identical frequencies must
interfere constructively
, Put in decreasing order:
deca
deci
micro
centi - ANSWERS-deca, deci, centi, micro
____ is the time to complete one cycle.
pulse duration
pulse period
period
duration period - ANSWERS-period
Which of the following sound waves is ultrasonic and least
useful in diagnostic imaging?
30KHz
8 MHz
8,000 Hz
3,000 kHz
