1.
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Normal Ultrasound Frequency is:
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20 to 20000 Hz
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1 to 19 Hz
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More than 20000 Hz
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More than 2.5 MHz
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2.
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If the
frequency of the transducer increases, what happens to the resolution?
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Increases
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Decreases
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Remains Same
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None of the above
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3.
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A common piezoelectrical material used
in diagnostic ultrasound is,
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Barium Titanate
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Iron
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Lead Zirconate Titanate
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Quartz
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4.
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Which of the following is a disadvantage
of PW Doppler?
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Not ideal for Blood Flow determination
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Aliasing in High velocity flow
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Not a Depth Specific
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All of the above
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5.
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All of the following is true regarding
Doppler except,
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Moving object causes Doppler shift
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Parallel Incidence is ideal for the Doppler
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There is change in sending and returning
frequency in Doppler shift
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Perpendicular incidence is ideal for
Doppler
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6.
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The M mode:
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Has a good tissue resolution
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Determines velocity of blood flow in
a lumen
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Determines motion of moving tissues
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All of the above
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7.
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Which of the following techniques are
used in color flow Doppler?
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Fast Fourier Transform
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Auto Correllation Technique
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Bernoulli's Technique
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Modified Simpson Technique
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8.
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Which of the following is not considered
to be pre-processing:
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Amplification
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Demodulation
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Compression
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Contrast Adjustment
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9.
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Pulsar determines all of the following
except:
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Power Output
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PRF
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Pulse Repetition Period
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TGC
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10.
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All of the following are operator dependent
except:
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PRF
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Power Output
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Frame Rate
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Wavelength
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