UNDERSTANDING ULTRASOUND PHYSICS
FOURTH EDITION EDELMAN ACTUAL TEST
BANK 2026 COMPLETE SOLUTIONS
GRADED A+
⩥ A sound wave is traveling in the body and propagates from muscle to
air. What percentage of the sound wave is most likely reflected at the
muscle-air boundary?
a. 0.5%
b. 75%
c. 25%
d. 5%
e. 99%. Answer: 75%
⩥ Which of the following lists is in decreasing order?
a. mega, kilo, deca, milli, nano
b. centi, mill, kilo, mega, nano
c. micro, milli, deci, kilo, mega
d. micro, kilo, mega, deci, milli
e. mega, micro, deci, milli, hecto. Answer: mega, kilo, deca, milk, nano
,⩥ During a diagnostic exam, which of these statements is most correct
when describing the pulsed echo characteristics of an ultrasound system.
a. The listening time may be one-thousand times longer than the pulse
duration.
b. the pulse duration is longer than the pulse repetition period.
c. The pulse duration is similar to the listening time.
d. The duty factor has a value close to 1
e. The pulse repitition period is similar to the period.. Answer: The
listening time may be one-thousand times longer than the pulse duration.
⩥ Which of the following parameters is determined by both the
ultrasound system and the medium through which the sound travels?
a. period
b. frequency
c. temperature
d. wavelength
e. velocity of the sound. Answer: wavelength
⩥ You should be familiar with the formula L= C/F.
What does "C" stand for in this equation?
a. characteristic impedence
b. density
c. compliance
,d. compressability
e. propagation speed. Answer: propagation speed
⩥ Which of the following lists is in increasing order?
a. mega, kilo, milli, nano, centi
b. centi, milli, kilo, mega, nano
c. micro, kilo, milli, deci, mega
d. micro, milli, deci, kilo, mega
e. mega, micro, deci, mill, hecto. Answer: micro, milli, deci, kilo, mega
⩥ Which of the following statements about speed and attenuation are
true?
a. Attenuation through and propagation speed in a particular medium are
unrelated to each other.
b. When a sound beam travels faster in a medium, the attenuation is less.
c. When a sound beam travels slower in a medium, the attenuation is
more.. Answer: Attenuation through and propagation speed in a
particular medium are unrelated to each other.
⩥ A sonographer is scanning a patient with a 3 MHz probe and replaces
it with a 6 MHz probe. All of the following statements are FALSE,
except:
a. The 6 MHz beam will travel at a lower speed than the 3 MHz beam
, b. The 6 MHz beam will travel faster than the 3 MHz beam
c. The 3 MHz beam will have a higher frequency than the 6 MHz beam
d. The 6 MHZ beam will have a longer period than the 3 MHz beam
e. The 3 MHz beam will have a longer wavelength than the 6 MHz
beam. Answer: The 3 MHz beam will have a longer wavelength than the
6 MHz beam
⩥ Rank the following media in increasing order of propagation speed.
a. muscle, liver, fat, bone, lung
b. air, lung, fat, soft tissue, bone
c. bone, muscle, fat, lung, air
d. air, fat, bone, blood, water
e. liver, kidney, fat, muscle, brain. Answer: air, lung, fat, soft tissue, bone
⩥ Which of the following intensities is most significant with regard to
the study of bioeffects?
a. SATP
b. SATA
c. SAPA
d. SPTA
e. SPTP. Answer: SPTA
⩥ Which of the following terms does not belong with the others?
FOURTH EDITION EDELMAN ACTUAL TEST
BANK 2026 COMPLETE SOLUTIONS
GRADED A+
⩥ A sound wave is traveling in the body and propagates from muscle to
air. What percentage of the sound wave is most likely reflected at the
muscle-air boundary?
a. 0.5%
b. 75%
c. 25%
d. 5%
e. 99%. Answer: 75%
⩥ Which of the following lists is in decreasing order?
a. mega, kilo, deca, milli, nano
b. centi, mill, kilo, mega, nano
c. micro, milli, deci, kilo, mega
d. micro, kilo, mega, deci, milli
e. mega, micro, deci, milli, hecto. Answer: mega, kilo, deca, milk, nano
,⩥ During a diagnostic exam, which of these statements is most correct
when describing the pulsed echo characteristics of an ultrasound system.
a. The listening time may be one-thousand times longer than the pulse
duration.
b. the pulse duration is longer than the pulse repetition period.
c. The pulse duration is similar to the listening time.
d. The duty factor has a value close to 1
e. The pulse repitition period is similar to the period.. Answer: The
listening time may be one-thousand times longer than the pulse duration.
⩥ Which of the following parameters is determined by both the
ultrasound system and the medium through which the sound travels?
a. period
b. frequency
c. temperature
d. wavelength
e. velocity of the sound. Answer: wavelength
⩥ You should be familiar with the formula L= C/F.
What does "C" stand for in this equation?
a. characteristic impedence
b. density
c. compliance
,d. compressability
e. propagation speed. Answer: propagation speed
⩥ Which of the following lists is in increasing order?
a. mega, kilo, milli, nano, centi
b. centi, milli, kilo, mega, nano
c. micro, kilo, milli, deci, mega
d. micro, milli, deci, kilo, mega
e. mega, micro, deci, mill, hecto. Answer: micro, milli, deci, kilo, mega
⩥ Which of the following statements about speed and attenuation are
true?
a. Attenuation through and propagation speed in a particular medium are
unrelated to each other.
b. When a sound beam travels faster in a medium, the attenuation is less.
c. When a sound beam travels slower in a medium, the attenuation is
more.. Answer: Attenuation through and propagation speed in a
particular medium are unrelated to each other.
⩥ A sonographer is scanning a patient with a 3 MHz probe and replaces
it with a 6 MHz probe. All of the following statements are FALSE,
except:
a. The 6 MHz beam will travel at a lower speed than the 3 MHz beam
, b. The 6 MHz beam will travel faster than the 3 MHz beam
c. The 3 MHz beam will have a higher frequency than the 6 MHz beam
d. The 6 MHZ beam will have a longer period than the 3 MHz beam
e. The 3 MHz beam will have a longer wavelength than the 6 MHz
beam. Answer: The 3 MHz beam will have a longer wavelength than the
6 MHz beam
⩥ Rank the following media in increasing order of propagation speed.
a. muscle, liver, fat, bone, lung
b. air, lung, fat, soft tissue, bone
c. bone, muscle, fat, lung, air
d. air, fat, bone, blood, water
e. liver, kidney, fat, muscle, brain. Answer: air, lung, fat, soft tissue, bone
⩥ Which of the following intensities is most significant with regard to
the study of bioeffects?
a. SATP
b. SATA
c. SAPA
d. SPTA
e. SPTP. Answer: SPTA
⩥ Which of the following terms does not belong with the others?
