Questão 1
Questão
Which of these four values for pulse repetition frequency would have the longest pulse repetition period?
Questão 2
Questão
Which of the following four waves has the highest pulse repetition frequency?
Questão 3
Questão
Which of these four pulses with PRFs listed below has the shortest pulse repetition period?
Responda
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12 kHz
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6000 Hz
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20 kHz
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1 kHz
Questão 4
Questão
Which of the following four waves has the lowest pulse repetition frequency?
Responda
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8 s
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80 microseconds
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8000 ns
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800 ms
Questão 5
Questão
Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different.
Questão 6
Questão
Two waves can have identical PRFs, even if their periods are different.
Questão 7
Questão
Two waves can have identical PRFs, even if their frequencies are different.
Questão 8
Questão
PRF and pulse repetition period are determined only by the imaging depth.
Questão 9
Questão
If all other factors remain unchanged, what happens to the duty factor when the PRF increases?
Responda
-
increases
-
decreases
-
remains the same
Questão 10
Questão
If all other factors remain unchanged, what happens to the duty factor when the imaging depth increases?
Responda
-
increases
-
decreases
-
remains the same
Questão 11
Questão
If all other factors remain unchanged, what happens to the duty factor when the PRP increases?
Responda
-
increases
-
decreases
-
remains the same
Questão 12
Questão
If all other factors remain unchanged, what happens to the duty factor when the sonographer uses a new transducer with a longer pulse duration?
Responda
-
increases
-
decreases
-
remains the same
Questão 13
Questão
What is the DF if the pulse duration is 1 microsecond and the PRP is 1 ms?
Questão 14
Questão
Which of the following terms does not belong with the others?
Responda
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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
Questão 15
Questão
Which of the following terms does not belong with the others?
Responda
-
low duty factor
-
shallow imaging
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low PRF
-
long PRP