EDELMAN SPI EXAM NEWEST 2026 ACTUAL
VERIFIED EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||NEWEST
EXAM!!||
Which of the following sound waves is ultrasonic and least
useful in diagnostic imaging?
a) 30 KHz
b) 8 Mhz
c) 8,000 Hz
d) 3,000 Hz
e) 15 Hz - Answer-A
______ is the distance covered by one cycle.
a) pulse length
b) wavelength
c) cycle distance
d) cycle duration - Answer-B
Which of the following is determined by the source and the
medium?
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a) frequency
b) period
c) propagation speed
d) range resolution - Answer-D
Propagation speed = _______ x wavelength
a) pulse duration
b) period
c) # of cycles in the pulse
d) frequency - Answer-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. - Answer-C
Put in decreasing order of propagation speed.
a) gas
b) liquid
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c) solid - Answer-c b a
Sound waves are:
a) electric
b) mechanical, transverse
c) spectral
d) longitudinal, mechanical - Answer-D
The speed of sound of ultrasound in soft tissue is closest
to:
a) 1,540 km/sec
b) 1.54 km/sec
c) 1,500 m/s
d) 1,540 mm/sec - Answer-C
Which is not an acoustic variable?
a) density
b) pressure
c) distance
d) intensity - Answer-D
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The effects of soft tissue on ultrasound are called:
a) acoustic proliferation properties
b) dynamic effects
c) acoustic propagation properties
d) biological effects - Answer-C
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-phase waves interfere destructively.
d) waves of different frequencies may exhibit both
constructive and destructive interference at different times.
- Answer-A
Put in decreasing order:
a) deca
b) deci
c) micro
d) centi - Answer-abdc