1
SPI mock exam 2026 Questions and
Answers (100% Correct Answers)
Already Graded A+
Reducing the likelihood of bioeffects from acoustic energy is
the mission of the:
A. Nyquist limit
© 2026 Assignment
B. Reynolds number
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C. Huygens principle
Expert
D. ALARA principle
E. Poiseuille principle Ans: 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 Ans: B. SPL
The Doppler shift frequency is proportional to the:
, 2
A. Cosine values
B. Doppler angle
C. Operating frequency
D. Velocity of the reflector
E. Propagation speed if the medium Ans: D. Velocity of the
reflector
© 2026 Assignment
In the Fraunhofer zone, the beam:
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A. Width diverges
B. Is conical in shape
C. Intensity is greatest
D. Intensity is inconsistent
E. Widens towards the focal zone Ans: A. Width diverges
Artifacts consisting of parallel equally spaced lines are
characteristic of:
A. Multipath
B. Grating lobes
C. Reverberation
D. Range ambiguity
, 3
E. Acoustic shadowing Ans: 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
© 2026 Assignment
D. Acoustic enhancement
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E. Propagation speed error Ans: 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 Ans: D. Dynamic range
Axial resolution directly related to the:
A. Penetrating depth
B. SPL
, 4
C. Temporal resolution
D. Tx diameter
E. Operating frequency Ans: E. Operating frequency
When voltage is applied to the piezoelectric crystal, the crystal
will:
A. Vibrate
© 2026 Assignment
B. Increase in size
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Expert
C. Decrease in size
D. Remain unchanged
E. Increase or decrease according to the polarity Ans: 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% Ans: D. 30%
SPI mock exam 2026 Questions and
Answers (100% Correct Answers)
Already Graded A+
Reducing the likelihood of bioeffects from acoustic energy is
the mission of the:
A. Nyquist limit
© 2026 Assignment
B. Reynolds number
Guru01 - Stuvia
C. Huygens principle
Expert
D. ALARA principle
E. Poiseuille principle Ans: 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 Ans: B. SPL
The Doppler shift frequency is proportional to the:
, 2
A. Cosine values
B. Doppler angle
C. Operating frequency
D. Velocity of the reflector
E. Propagation speed if the medium Ans: D. Velocity of the
reflector
© 2026 Assignment
In the Fraunhofer zone, the beam:
Guru01 - Stuvia
Expert
A. Width diverges
B. Is conical in shape
C. Intensity is greatest
D. Intensity is inconsistent
E. Widens towards the focal zone Ans: A. Width diverges
Artifacts consisting of parallel equally spaced lines are
characteristic of:
A. Multipath
B. Grating lobes
C. Reverberation
D. Range ambiguity
, 3
E. Acoustic shadowing Ans: 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
© 2026 Assignment
D. Acoustic enhancement
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Expert
E. Propagation speed error Ans: 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 Ans: D. Dynamic range
Axial resolution directly related to the:
A. Penetrating depth
B. SPL
, 4
C. Temporal resolution
D. Tx diameter
E. Operating frequency Ans: E. Operating frequency
When voltage is applied to the piezoelectric crystal, the crystal
will:
A. Vibrate
© 2026 Assignment
B. Increase in size
Guru01 - Stuvia
Expert
C. Decrease in size
D. Remain unchanged
E. Increase or decrease according to the polarity Ans: 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% Ans: D. 30%
