Ultrasound Physics Final Review Exam
Questions with Complete Solutions
A pulse consists of individual cycles propagating individually.
A. True
B. False - -B. False
- A transducer's transmit time does not change when the sonographer
changes the depth of the image.
A. True
B. False - -A. True
- All of the following are acoustic parameters except:
A. pressure
B. period
C. propagation speed
D. frequency - -A. pressure
- All of the following are true of sound waves except:
A. they are acoustic
B. they are pressure waves
C. they are transverse
D. they move energy - -C. they are transverse
- How is the age of bread related to its freshness?
A. directly
B. unrelated
C. inversely - -C. inversely
- PRF and pulse repetition period are determined only by the imaging depth.
A. true
B. False - -A. true
- Which of the following best describes sound waves?
A. a series of compressions and rarefactions
B. waves that are heard by man
C. movement of molecules and energy from one location to another
D. waves that are used to make images of anatomy - -A. a series of
compressions and rarefactions
- What is the reciprocal of 1/8?
A. 80
B. 10
C. 8
, D. 1 - -C. 8
- What do waves transfer from one location to another?
A. matter
B. molecules
C. energy
D. water - -C. energy
- Transmit time is the listening time.
A. true
B. false - -B. false
- A disadvantage of CW Doppler is?
A. aliasing
B. range resolution
C. spectral analysis
D. range ambiguity - -D. range ambiguity
- A negative Doppler shift indicates flow away from the transducer?
A. true
B. false - -A. true
- What is the frequency at which aliasing occurs called?
A. Fast Fourier Method
B. Doppler Shift
C. Range Ambiguity
D. Nyquist Limit - -D. Nyquist Limit
- The phenomenon where high velocities appear negative is called?
A. aliasing
B. clutter
C. Nyquist limit
D. ghosting - -A. aliasing
- The angle between the sound beam and the direction of motion at which
the Doppler shift will be a minimum is 60 degrees.
A. true
B. false - -B. false
- Which of the following will increase the Nyquist limit?
A. use the CW Doppler
B. baseline shift
C. repositioning the transducer to a shallower view
D. select a lower frequency transducer - -C. repositioning the transducer to a
shallower view
Questions with Complete Solutions
A pulse consists of individual cycles propagating individually.
A. True
B. False - -B. False
- A transducer's transmit time does not change when the sonographer
changes the depth of the image.
A. True
B. False - -A. True
- All of the following are acoustic parameters except:
A. pressure
B. period
C. propagation speed
D. frequency - -A. pressure
- All of the following are true of sound waves except:
A. they are acoustic
B. they are pressure waves
C. they are transverse
D. they move energy - -C. they are transverse
- How is the age of bread related to its freshness?
A. directly
B. unrelated
C. inversely - -C. inversely
- PRF and pulse repetition period are determined only by the imaging depth.
A. true
B. False - -A. true
- Which of the following best describes sound waves?
A. a series of compressions and rarefactions
B. waves that are heard by man
C. movement of molecules and energy from one location to another
D. waves that are used to make images of anatomy - -A. a series of
compressions and rarefactions
- What is the reciprocal of 1/8?
A. 80
B. 10
C. 8
, D. 1 - -C. 8
- What do waves transfer from one location to another?
A. matter
B. molecules
C. energy
D. water - -C. energy
- Transmit time is the listening time.
A. true
B. false - -B. false
- A disadvantage of CW Doppler is?
A. aliasing
B. range resolution
C. spectral analysis
D. range ambiguity - -D. range ambiguity
- A negative Doppler shift indicates flow away from the transducer?
A. true
B. false - -A. true
- What is the frequency at which aliasing occurs called?
A. Fast Fourier Method
B. Doppler Shift
C. Range Ambiguity
D. Nyquist Limit - -D. Nyquist Limit
- The phenomenon where high velocities appear negative is called?
A. aliasing
B. clutter
C. Nyquist limit
D. ghosting - -A. aliasing
- The angle between the sound beam and the direction of motion at which
the Doppler shift will be a minimum is 60 degrees.
A. true
B. false - -B. false
- Which of the following will increase the Nyquist limit?
A. use the CW Doppler
B. baseline shift
C. repositioning the transducer to a shallower view
D. select a lower frequency transducer - -C. repositioning the transducer to a
shallower view
