Edelman SPI FINAL EXAM 700 QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR NEW!!
How can the volume of an irregularly shaped object be measured most accurately?
A. by visual inspection
B. by its weight
C. by immersing it in water
D. by ultrasound scanning
C. Immersing it in water
what term is used to describe the effects of an ultrasound wave on living tissues?
A. toxic effects
B. acoustic propagation properties
C. biological effects
D. transmission properties
C. biological effects
which of the following is true of all waves?
a. they travel through a medium
b. all carry energy from one site to another
c. their amplitudes do not change
d. they travel in a straight line
b. all waves carry energy from one site to another
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Which of the following types of waves do not require a medium in order to propagate? (More
than one answer may apply)
a. light
b. heat
c. sound
d. television
a light, b heat, c television
sound cannot travel though a vacuum and requires a medium to propagate
Which of the following describes the characteristic of a sound wave?
a. longitudinal, bon-mechanical
b. mechanical, transverse
c. transverse, acoustic
d. mechanical, longitudinal
d. mechanical, longitudinal
Sound is best described as _____.
A. a series of compressions and rarefactions
B. a transverse wave
C. a wave humans can hear
D. an oblique displacement of acoustic energy
a. series of compressions and rarefactions
What are the acoustic variables?
Pressure, density, motions of particles, (Temperature)
PDD
What are the units of a pressure measurement of an acoustic wave? (More than one answer
may apply)
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a. atmosphere (atm)
b. pascals (Pa)
c. millimeters of mercury (mmHg)
d. Pounds/sq. inch (lbs/in^2)
All are correct, pascals are used most often
which statement regarding axial resolution is incorrect?
a. axial resolution artifact is related to beam diameter
b. higher quality images are associated with smaller numbers
c. axial resolution may be reported in units of meters
d. numerically, axial resolution equals 1/2 the pulse length
e. too few reflectors appear on the image
a. axial resolution artifact is related to beam diameter
A sonographer measures the perimeter of an anatomical structure. Which of the following
choices is a reasonable value for the measurement?
A. 6 cm2
B. 5 cc
C. 15 mm
D. 18 dB
C. 15 mm
what are the units associated with the circumference of a circle?
A. mm
B. mm^2
C. cm^3
D. m^4
A. mm
the circumference is a length
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mm^2 is area
cm^3 is volume
The volume of a cystic structure is estimated from sonographic data. Which of the following is
an acceptable measurement of this volume?
A. 6
B. 6 cm
C. 6 cm^2
D. 6 cm^3
D. 6 cm^3
B is length
C is area
Which term is the reciprocal of mega?
A. nano
B. kilo
C. macro
D. micro
D. Micro
Select the sequence that appears in increasing order.
A. mega, kilo, hecto, milli, giga
B. nano, milli, micro, deci, deca, mega
C. centi, deci, deca, hecto
D. milli, hecto, centi, deci, nano, giga
C. Centi, deci, deca, hecto
How many nanoseconds are in 7 seconds?
A. 7,000,000
B. 7,000,000,000
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