DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
1. PHYSICAL PRINCIPLES questions below
2. During a sonographic examination of a A: Normal incidence
large ves- sel, a 45 degree beam-to-
vessel angle would be called: ***B: Oblique incidence
C: Perpendicular
incidence D: Snell's
incidence
3. Which sound beam frequency would
exhibit the greatest intensity loss with E: None of the above
increasing depth?
****A:
10MHz B: 8
MHz
C: 5 MHz
D: 3 MHz
E: 2 MHz
4. According to Snell's law, the angle of transmission A: The amount of
acoustic im-
is related to the incident beam angle pedance mismatch at an inter- face.
and:
B: The change in frequency that
occurs at an interface.
C: One-half of the angle of inci-
dence.
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157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
***D: The relative speeds of sound in the two media.
2/
157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
E: The percentage of
dittraction distal to the
interface.
5. Ultrasound propagation velocity depends on: A: Amplitude and
frequency
B: Impedance and attenuatio
***C: Density and
compressibil- ity
D: Dynamic range and
com- pression
E: Impedance and density
6. while performing a doppler ultrasound listed below.
examina- tion, you adjust the pulse Which one w
repetition frequency to 12 kHz. this can NOT cause a
also be expressed as: redirection of
part of the
7. which of the following factors does NOT ultrasound
affect impedance? energy?
8. During a diagnostic ultrasound
examination, you encounter all of the
interactions of ultrasound and tissue
3/
157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
12,000 kHz
-- stittness
-- density
-- propagation speed
***-- frequency
-- all of the above A: Reflection
B: Scattering
C: Divergence
4/
157
1. PHYSICAL PRINCIPLES questions below
2. During a sonographic examination of a A: Normal incidence
large ves- sel, a 45 degree beam-to-
vessel angle would be called: ***B: Oblique incidence
C: Perpendicular
incidence D: Snell's
incidence
3. Which sound beam frequency would
exhibit the greatest intensity loss with E: None of the above
increasing depth?
****A:
10MHz B: 8
MHz
C: 5 MHz
D: 3 MHz
E: 2 MHz
4. According to Snell's law, the angle of transmission A: The amount of
acoustic im-
is related to the incident beam angle pedance mismatch at an inter- face.
and:
B: The change in frequency that
occurs at an interface.
C: One-half of the angle of inci-
dence.
1/
157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
***D: The relative speeds of sound in the two media.
2/
157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
E: The percentage of
dittraction distal to the
interface.
5. Ultrasound propagation velocity depends on: A: Amplitude and
frequency
B: Impedance and attenuatio
***C: Density and
compressibil- ity
D: Dynamic range and
com- pression
E: Impedance and density
6. while performing a doppler ultrasound listed below.
examina- tion, you adjust the pulse Which one w
repetition frequency to 12 kHz. this can NOT cause a
also be expressed as: redirection of
part of the
7. which of the following factors does NOT ultrasound
affect impedance? energy?
8. During a diagnostic ultrasound
examination, you encounter all of the
interactions of ultrasound and tissue
3/
157
, DAVIES PHYSICS QUESTIONS AND ANSWERS FOR A+ SCORE!!
12,000 kHz
-- stittness
-- density
-- propagation speed
***-- frequency
-- all of the above A: Reflection
B: Scattering
C: Divergence
4/
157
