SPI Practice Test
A 1.5D transducer has what potential?
A. Electronically consciousness in the elevational plane
b. Produce a 3-d picture
c. Dynamic aperature
d. Color Doppler imaging - ANS-a.
A lower in power or depth through a aspect of two represents a trade of
a. -three dB
b. -50 dB
c. -6 dB
d. 3 B - ANS-a.
A decrease within the thickness of a piezoelectric detail will bring about
a. A extra pulse length
b. An boom in the propagation speed
c. A decrease in the high-quality issue if the bandwidth decreases
d. An increase in the frequency of the transducer - ANS-d.
A longitudinal wave is characterized through _____________.
A. The potential of the sound wave to penetrate 5 cm of tissue
b. Frequency of vibration greater than 1 MHz
c. Acoustic speed equals 1,540 m/s
d. Particle motion in same course because the direction of wave propagation - ANS-d.
A slice-thickness phantom measures which plane of the transducer?
A. The scanning plane
b. The elevation aircraft
c. The azimuthal aircraft
d. The temporal plane - ANS-b.
A small (relative to the wavelength) reflector is said to ______________ an incident sound
beam
a. Awareness
,b. Speculate
c. Scatter
d. Expand - ANS-c.
A video display that is restrained to handiest black and white, with out a other sunglasses of
gray, is referred to as _____________.
A. Binary
b. Monochrome
c. Bistable
d. Unichrome - ANS-c.
Acoustic artifacts encompass
a. Images of reflectors in an inappropriate role
b. Image of reflectors of wrong brightness
c. Images that do not correspond to anatomical systems
d. All of the above - ANS-d.
ALARA stands for
a. As low as moderately potential
b. As lengthy as fairly acceptable
c. As little as reasonably allowable
d. As long as moderately feasible - ANS-a.
An growth within the diameter of a transducer outcomes in a(n) ______________ of the close to
area duration
a. Growth
b. Decrease
c. No trade - ANS-a.
An unfocused, single-element disc transducer this is 13mm in diameter has a diameter at the
focal area of:
a. 13 mm
b. 6.Five mm
c. 26 mm
d. Cannot be decided - ANS-b.
As frequency is elevated:
a. A 3-cycle ultrasound pulse decreases in length
, b. Wavelength increases
c. Attenuation decreases
d. Propagation speed will increase - ANS-a.
As the frequency of sound increases,
a. The amount of scatter is improved
b. The attenuation decreases
c. The amount of scatter decreases
d. The penetration increases - ANS-a.
Assuming a hard and fast frequency, what occurs if the diameter of an unfocused transducer is
improved?
A. The a long way sector divergence increases
b. The penetration decreases
c. The duration of the close to sector will increase
d. The duration of the near sector decreases - ANS-c.
At what point do the amplitudes get assigned gray scale numbers in order that they can be
placed into reminiscence?
A. Pre-processing of the sign
b. Post-processing of the sign
c. In the laptop reminiscence
d. In the receiver - ANS-a.
Attenuation along a valid course is a lower in:
a. Frequency
b. Amplitude
c. Wavelength
d. Propagation speed - ANS-b.
Avoiding a local temperature boom exceeding ___________ need to make sure there aren't any
thermally precipitated biological consequences
a. 2 tiers celsius
b. Four stages celsius
c. 10 ranges celsius
d. 95 levels farenheight - ANS-a.
Axial decision is stricken by all the following EXCEPT
A 1.5D transducer has what potential?
A. Electronically consciousness in the elevational plane
b. Produce a 3-d picture
c. Dynamic aperature
d. Color Doppler imaging - ANS-a.
A lower in power or depth through a aspect of two represents a trade of
a. -three dB
b. -50 dB
c. -6 dB
d. 3 B - ANS-a.
A decrease within the thickness of a piezoelectric detail will bring about
a. A extra pulse length
b. An boom in the propagation speed
c. A decrease in the high-quality issue if the bandwidth decreases
d. An increase in the frequency of the transducer - ANS-d.
A longitudinal wave is characterized through _____________.
A. The potential of the sound wave to penetrate 5 cm of tissue
b. Frequency of vibration greater than 1 MHz
c. Acoustic speed equals 1,540 m/s
d. Particle motion in same course because the direction of wave propagation - ANS-d.
A slice-thickness phantom measures which plane of the transducer?
A. The scanning plane
b. The elevation aircraft
c. The azimuthal aircraft
d. The temporal plane - ANS-b.
A small (relative to the wavelength) reflector is said to ______________ an incident sound
beam
a. Awareness
,b. Speculate
c. Scatter
d. Expand - ANS-c.
A video display that is restrained to handiest black and white, with out a other sunglasses of
gray, is referred to as _____________.
A. Binary
b. Monochrome
c. Bistable
d. Unichrome - ANS-c.
Acoustic artifacts encompass
a. Images of reflectors in an inappropriate role
b. Image of reflectors of wrong brightness
c. Images that do not correspond to anatomical systems
d. All of the above - ANS-d.
ALARA stands for
a. As low as moderately potential
b. As lengthy as fairly acceptable
c. As little as reasonably allowable
d. As long as moderately feasible - ANS-a.
An growth within the diameter of a transducer outcomes in a(n) ______________ of the close to
area duration
a. Growth
b. Decrease
c. No trade - ANS-a.
An unfocused, single-element disc transducer this is 13mm in diameter has a diameter at the
focal area of:
a. 13 mm
b. 6.Five mm
c. 26 mm
d. Cannot be decided - ANS-b.
As frequency is elevated:
a. A 3-cycle ultrasound pulse decreases in length
, b. Wavelength increases
c. Attenuation decreases
d. Propagation speed will increase - ANS-a.
As the frequency of sound increases,
a. The amount of scatter is improved
b. The attenuation decreases
c. The amount of scatter decreases
d. The penetration increases - ANS-a.
Assuming a hard and fast frequency, what occurs if the diameter of an unfocused transducer is
improved?
A. The a long way sector divergence increases
b. The penetration decreases
c. The duration of the close to sector will increase
d. The duration of the near sector decreases - ANS-c.
At what point do the amplitudes get assigned gray scale numbers in order that they can be
placed into reminiscence?
A. Pre-processing of the sign
b. Post-processing of the sign
c. In the laptop reminiscence
d. In the receiver - ANS-a.
Attenuation along a valid course is a lower in:
a. Frequency
b. Amplitude
c. Wavelength
d. Propagation speed - ANS-b.
Avoiding a local temperature boom exceeding ___________ need to make sure there aren't any
thermally precipitated biological consequences
a. 2 tiers celsius
b. Four stages celsius
c. 10 ranges celsius
d. 95 levels farenheight - ANS-a.
Axial decision is stricken by all the following EXCEPT
