SPI MOCK EXAM QUESTIONS &
VERIFIED CORRECT ANSWERS ALL
PASSED RATED 100% COMPLETE
Reducing the likelihood of bioeffects from acoustic energy is the mission of the:
A. Nyquist limit
B. Reynolds number
C. Huygens principle
D. ALARA principle
E. Poiseuille principle CORRECT ANSWER - D. ALARA principle
The number of cycles in a pulse directly related to the:
A. Duty factor
B. SPL
C. operating frequency
D. PRF
E. propagation speed of the medium CORRECT ANSWER - B. SPL
The Doppler shift frequency is proportional to the:
A. Cosine values
B. Doppler angle
C. Operating frequency
,D. Velocity of the reflector
E. Propagation speed if the medium CORRECT ANSWER - D. Velocity of the reflector
In the Fraunhofer zone, the beam:
A. Width diverges
B. Is conical in shape
C. Intensity is greatest
D. Intensity is inconsistent
E. Widens towards the focal zone CORRECT ANSWER - A. Width diverges
Artifacts consisting of parallel equally spaced lines are characteristic of:
A. Multipath
B. Grating lobes
C. Reverberation
D. Range ambiguity
E. Acoustic shadowing CORRECT ANSWER - C. Reverberation
An increase in reflection amplitudes from reflectors that lie behind a weakly attenuating
structure is called:
A. Comet tail artifact
B. Shadowing
C. Slice thickness artifact
D. Acoustic enhancement
,E. Propagation speed error CORRECT ANSWER - D. Acoustic enhancement
The ratio of the largest power to the smallest power the ultrasound system can handle
describes:
A. Amplitude
B. Bandwidth
C. Compensation
D. Dynamic range
E. Contrast resolution CORRECT ANSWER - D. Dynamic range
Axial resolution directly related to the:
A. Penetrating depth
B. SPL
C. Temporal resolution
D. Tx diameter
E. Operating frequency CORRECT ANSWER - E. Operating frequency
When voltage is applied to the piezoelectric crystal, the crystal will:
A. Vibrate
B. Increase in size
C. Decrease in size
D. Remain unchanged
E. Increase or decrease according to the polarity CORRECT ANSWER - E. Increase or decrease
according to the polarity
, The resistance of the arterioles accounts for about what percentage of the total systemic
resistance?
A. 10%
B. 25%
C. 33%
D. 30%
E. 75% CORRECT ANSWER - D. 30%
Rayleigh scattering is most likely to occur when encountering the:
A. Liver
B. Pleura
C. Diaphragm
D. RBC
E. Urinary bladder CORRECT ANSWER - D. RBC
Which color always represents the baseline in color Doppler imaging?
A. Red
B. Blue
C. White
D. Black
E. Ywllow CORRECT ANSWER - D. Black
VERIFIED CORRECT ANSWERS ALL
PASSED RATED 100% COMPLETE
Reducing the likelihood of bioeffects from acoustic energy is the mission of the:
A. Nyquist limit
B. Reynolds number
C. Huygens principle
D. ALARA principle
E. Poiseuille principle CORRECT ANSWER - D. ALARA principle
The number of cycles in a pulse directly related to the:
A. Duty factor
B. SPL
C. operating frequency
D. PRF
E. propagation speed of the medium CORRECT ANSWER - B. SPL
The Doppler shift frequency is proportional to the:
A. Cosine values
B. Doppler angle
C. Operating frequency
,D. Velocity of the reflector
E. Propagation speed if the medium CORRECT ANSWER - D. Velocity of the reflector
In the Fraunhofer zone, the beam:
A. Width diverges
B. Is conical in shape
C. Intensity is greatest
D. Intensity is inconsistent
E. Widens towards the focal zone CORRECT ANSWER - A. Width diverges
Artifacts consisting of parallel equally spaced lines are characteristic of:
A. Multipath
B. Grating lobes
C. Reverberation
D. Range ambiguity
E. Acoustic shadowing CORRECT ANSWER - C. Reverberation
An increase in reflection amplitudes from reflectors that lie behind a weakly attenuating
structure is called:
A. Comet tail artifact
B. Shadowing
C. Slice thickness artifact
D. Acoustic enhancement
,E. Propagation speed error CORRECT ANSWER - D. Acoustic enhancement
The ratio of the largest power to the smallest power the ultrasound system can handle
describes:
A. Amplitude
B. Bandwidth
C. Compensation
D. Dynamic range
E. Contrast resolution CORRECT ANSWER - D. Dynamic range
Axial resolution directly related to the:
A. Penetrating depth
B. SPL
C. Temporal resolution
D. Tx diameter
E. Operating frequency CORRECT ANSWER - E. Operating frequency
When voltage is applied to the piezoelectric crystal, the crystal will:
A. Vibrate
B. Increase in size
C. Decrease in size
D. Remain unchanged
E. Increase or decrease according to the polarity CORRECT ANSWER - E. Increase or decrease
according to the polarity
, The resistance of the arterioles accounts for about what percentage of the total systemic
resistance?
A. 10%
B. 25%
C. 33%
D. 30%
E. 75% CORRECT ANSWER - D. 30%
Rayleigh scattering is most likely to occur when encountering the:
A. Liver
B. Pleura
C. Diaphragm
D. RBC
E. Urinary bladder CORRECT ANSWER - D. RBC
Which color always represents the baseline in color Doppler imaging?
A. Red
B. Blue
C. White
D. Black
E. Ywllow CORRECT ANSWER - D. Black
