Edelman chapter 4

Which of these four values for pulse repetition frequency would have the longest pulse repetition period?

• 2 kHz

• 4000 Hz

• 6 Hz

• 1 kHz

Four pulses have pulse repetition periods as listed below. Which of the following four waves has the highest pulse repetition freuency?

• 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

• 1 kHz

Four waves have pulse repetition periods as listed below. Which of the following four waves has the lowest pulse repetition frequency?

• 8 s

• 80 µs

• 8000 ns

• 800 ms

Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different.

• true

• false

Answer explanation

two waves can never have identical PRFs if their PRPs are different

Two waves can have identical PRFs, even if their periods are different.

• true

• false

Two waves can have identical PRFs, even if their frequencies are different.

• true

• false

PRF and pulse repetition period are determined only by the imaging depth.

• true

• false

If all other factors remain unchanged, what happens to the duty factor when the pulse repetition frequency increases?

• increases

• decreases

• stays the same

If all other factors remain unchanged, what happens to the duty factor when the imaging depth increases?

• increases

• decreases

• stays the same