©BRIGHTSTARS EXAM SOLUTIONS
10/22/2024 12:14 PM
Ultrasound Physics - Mock Exam Questions
And Answers 100% Pass.
Which of the following transducers will have the worst axial resolution?
a. Vector array, 3 MHz
b. Linear Sequential Array, 6 MHZ
c. Linear Phased Array 7.5 MHZ
d. Annular Array, 6 MHz - answer✔Vector array, 3 MHz
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.
, ©BRIGHTSTARS EXAM SOLUTIONS
10/22/2024 12:14 PM
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?
, ©BRIGHTSTARS EXAM SOLUTIONS
10/22/2024 12:14 PM
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?
a. decreased depth of view
b. increased pulse duration
