Which of these four values for pulse repetition frequency would have the longest pulse repetition period?
2 kHz
4000 Hz
6 Hz
1 kHz
Which of the following four waves has the highest pulse repetition frequency?
8 s
80 ms
5 ms
400 ks
Which of these four pulses with PRFs listed below has the shortest pulse repetition period?
12 kHz
6000 Hz
20 kHz
Which of the following four waves has the lowest pulse repetition frequency?
80 microseconds
8000 ns
800 ms
Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different.
Two waves can have identical PRFs, even if their periods are different.
Two waves can have identical PRFs, even if their frequencies are different.
PRF and pulse repetition period are determined only by the imaging depth.
If all other factors remain unchanged, what happens to the duty factor when the PRF increases?
increases
decreases
remains the same
If all other factors remain unchanged, what happens to the duty factor when the imaging depth increases?
If all other factors remain unchanged, what happens to the duty factor when the PRP increases?
If all other factors remain unchanged, what happens to the duty factor when the sonographer uses a new transducer with a longer pulse duration?
What is the DF if the pulse duration is 1 microsecond and the PRP is 1 ms?
100%
0.1
0.01
0.001
Which of the following terms does not belong with the others?
high duty factor
shallow imaging
low PRF
short PRP
low duty factor
long PRP
