Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
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 -
correct 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% -
correct answer ✅75%
Which of the following lists is in decreasing order?
a. mega, kilo, deca, milli, nano
,Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
b. centi, mill, kilo, mega, nano
c. micro, milli, deci, kilo, mega
d. micro, kilo, mega, deci, milli
e. mega, micro, deci, milli, hecto -
correct 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. -
correct 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?
,Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
a. period
b. frequency
c. temperature
d. wavelength
e. velocity of the sound -
correct 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 -
correct 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
, Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
d. micro, milli, deci, kilo, mega
e. mega, micro, deci, mill, hecto -
correct 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. -
correct 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
for SPI Questions And Answers
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 -
correct 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% -
correct answer ✅75%
Which of the following lists is in decreasing order?
a. mega, kilo, deca, milli, nano
,Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
b. centi, mill, kilo, mega, nano
c. micro, milli, deci, kilo, mega
d. micro, kilo, mega, deci, milli
e. mega, micro, deci, milli, hecto -
correct 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. -
correct 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?
,Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
a. period
b. frequency
c. temperature
d. wavelength
e. velocity of the sound -
correct 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 -
correct 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
, Ultrasound Physics - Mock Exam Questions
for SPI Questions And Answers
d. micro, milli, deci, kilo, mega
e. mega, micro, deci, mill, hecto -
correct 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. -
correct 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
