10548604
Descripción
Test por Dawn Hubbard, actualizado hace más de 1 año
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Creado por Dawn Hubbard
hace alrededor de 9 años
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Pregunta 1
Pregunta
Which of these four values for pulse repetition frequency would have the longest pulse repetition period?
Respuesta
-
2 kHz
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4000 Hz
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6 Hz
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1 kHz
Pregunta 2
Pregunta
Which of the following four waves has the highest pulse repetition frequency?
Respuesta
-
8 s
-
80 ms
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5 ms
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400 ks
Pregunta 3
Pregunta
Which of these four pulses with PRFs listed below has the shortest pulse repetition period?
Respuesta
-
12 kHz
-
6000 Hz
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20 kHz
-
1 kHz
Pregunta 4
Pregunta
Which of the following four waves has the lowest pulse repetition frequency?
Respuesta
-
8 s
-
80 microseconds
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8000 ns
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800 ms
Pregunta 5
Pregunta
Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different.
Respuesta
- True
- False
Pregunta 6
Pregunta
Two waves can have identical PRFs, even if their periods are different.
Respuesta
- True
- False
Pregunta 7
Pregunta
Two waves can have identical PRFs, even if their frequencies are different.
Respuesta
- True
- False
Pregunta 8
Pregunta
PRF and pulse repetition period are determined only by the imaging depth.
Respuesta
- True
- False
Pregunta 9
Pregunta
If all other factors remain unchanged, what happens to the duty factor when the PRF increases?
Respuesta
-
increases
-
decreases
-
remains the same
Pregunta 10
Pregunta
If all other factors remain unchanged, what happens to the duty factor when the imaging depth increases?
Respuesta
-
increases
-
decreases
-
remains the same
Pregunta 11
Pregunta
If all other factors remain unchanged, what happens to the duty factor when the PRP increases?
Respuesta
-
increases
-
decreases
-
remains the same
Pregunta 12
Pregunta
If all other factors remain unchanged, what happens to the duty factor when the sonographer uses a new transducer with a longer pulse duration?
Respuesta
-
increases
-
decreases
-
remains the same
Pregunta 13
Pregunta
What is the DF if the pulse duration is 1 microsecond and the PRP is 1 ms?
Respuesta
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100%
-
0.1
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0.01
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0.001
Pregunta 14
Pregunta
Which of the following terms does not belong with the others?
Respuesta
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high duty factor
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shallow imaging
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low PRF
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short PRP
Pregunta 15
Pregunta
Which of the following terms does not belong with the others?
Respuesta
-
low duty factor
-
shallow imaging
-
low PRF
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long PRP
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