Free Exam: PHYSICS: Chap 19: Nyquist Limit - Homework
Number of Questions in Test: 21
Number of Questions in Preview: 5
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PRF = 2.5 x 10[sup]3[/sup] Hertz. Find the Nyquist Limit.
PRF = 2.5 x 10[sup]3[/sup] Hertz. Find the Nyquist Limit.
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 2
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If the Nyquist Limit = 2 kHz, what is the transducer’s pulse repetition frequency?
If the Nyquist Limit = 2 kHz, what is the transducer’s pulse repetition frequency?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 3
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If the Doppler Shifts from normal and stenotic arteries are 4 kHz and 10 kHz respectively, for which will there be aliasing with a pulse repetition frequency of 7 kHz?
If the Doppler Shifts from normal and stenotic arteries are 4 kHz and 10 kHz respectively, for which will there be aliasing with a pulse repetition frequency of 7 kHz?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 4
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“Ultrasound pulses made from higher frequency transducers are more likely to alias.”
“Ultrasound pulses made from higher frequency transducers are more likely to alias.”
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 5
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“The deeper the sample volume is, the more likely a signal is to alias.”
“The deeper the sample volume is, the more likely a signal is to alias.”
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |