Penny SPI Registry Review Exam Questions
And Answers
what type of wave is sound?
a. mechanical, transverse
b. mechanical, longitudinal
c. transverse, longitudinal
d. lateral wave -
correct answer ✅machanical, longitudinal
the frequency ranges for ultrasound are:
a. <20 hz
b. 20-20,000 hz
c. >20 khz
d. >2000 hz -
correct answer ✅>20 khz
the speed of sound in soft tissue is:
a. 1.54 mm/s
b. 1540 m/s
c. 1540 km/s
d. 1.54 m/us -
correct answer ✅1540 m/s
,Penny SPI Registry Review Exam Questions
And Answers
which of the following transducers fires the elements in groups?
a. linear sequenced array
b. phased array
c. continuous wave transducer
d. single element transducer -
correct answer ✅linear sequenced array
the unit for wavelength is:
a. millimeters
b. hertz
c. microseconds
d. milliliters -
correct answer ✅millimeters
enhancement is caused by:
a. strongly reflecting structures
b. propagation speed errors
c. snells law
,Penny SPI Registry Review Exam Questions
And Answers
d. weakly attenuating structures -
correct answer ✅weakly attenuating structures
the wavelength in a material having a propagation speed of 1.5
mm/us employing a transducer frequency of 5.0 mhz is:
a. 0.3 mm
b. 0.3 cm
c. 0.6 mm
d. 3.0 mm -
correct answer ✅0.3 mm
an ultrasound transducer converts:
a. electrical energy into light and heat
b. electrical energy into mechanical energy
c. mechanical energy into radiation
d. sound into ultrasound -
correct answer ✅electrical energy into mechanical energy
arrange the following media in correct order from the lowest
attenuation to highest:
, Penny SPI Registry Review Exam Questions
And Answers
a. air, fat, muscle, bone
b. muscle, fat, air, blood
c. fat, muscle, bone, air
d. muscle, air, fat, bone -
correct answer ✅fat, muscle, bone, air
arrange the following media in terms of propagation speed, from
lowest to highest:
a. air, fat, muscle, bone
b. bone, fat, air, muscle
c. bone, muscle, fat, air
d. muscle, air, fat, bone -
correct answer ✅air, fat, muscle, bone
If the frequency doubles, what happens to the wavelength?
a. increases fourfold
b. increases twofold
c. decreases by one half
d. frequency has no relationship to wavelength -
correct answer ✅decreases by one half
And Answers
what type of wave is sound?
a. mechanical, transverse
b. mechanical, longitudinal
c. transverse, longitudinal
d. lateral wave -
correct answer ✅machanical, longitudinal
the frequency ranges for ultrasound are:
a. <20 hz
b. 20-20,000 hz
c. >20 khz
d. >2000 hz -
correct answer ✅>20 khz
the speed of sound in soft tissue is:
a. 1.54 mm/s
b. 1540 m/s
c. 1540 km/s
d. 1.54 m/us -
correct answer ✅1540 m/s
,Penny SPI Registry Review Exam Questions
And Answers
which of the following transducers fires the elements in groups?
a. linear sequenced array
b. phased array
c. continuous wave transducer
d. single element transducer -
correct answer ✅linear sequenced array
the unit for wavelength is:
a. millimeters
b. hertz
c. microseconds
d. milliliters -
correct answer ✅millimeters
enhancement is caused by:
a. strongly reflecting structures
b. propagation speed errors
c. snells law
,Penny SPI Registry Review Exam Questions
And Answers
d. weakly attenuating structures -
correct answer ✅weakly attenuating structures
the wavelength in a material having a propagation speed of 1.5
mm/us employing a transducer frequency of 5.0 mhz is:
a. 0.3 mm
b. 0.3 cm
c. 0.6 mm
d. 3.0 mm -
correct answer ✅0.3 mm
an ultrasound transducer converts:
a. electrical energy into light and heat
b. electrical energy into mechanical energy
c. mechanical energy into radiation
d. sound into ultrasound -
correct answer ✅electrical energy into mechanical energy
arrange the following media in correct order from the lowest
attenuation to highest:
, Penny SPI Registry Review Exam Questions
And Answers
a. air, fat, muscle, bone
b. muscle, fat, air, blood
c. fat, muscle, bone, air
d. muscle, air, fat, bone -
correct answer ✅fat, muscle, bone, air
arrange the following media in terms of propagation speed, from
lowest to highest:
a. air, fat, muscle, bone
b. bone, fat, air, muscle
c. bone, muscle, fat, air
d. muscle, air, fat, bone -
correct answer ✅air, fat, muscle, bone
If the frequency doubles, what happens to the wavelength?
a. increases fourfold
b. increases twofold
c. decreases by one half
d. frequency has no relationship to wavelength -
correct answer ✅decreases by one half
