ARDMS SPI Exam Review TEST 6

August 18, 2017 By Rana Waqar Leave a Comment

1. Which of the following would be considered the narrowest part of a sound beam?
- a. Far zone
- b. Near zone
- c. Near zone length
- d. Focus
2. Which of the following is the part of the transducer that stops the ringing of the element?
- a. Matching layer
- b. Housing
- c. Damping material
- d. Insulator
3. Along with image depth, which of the following also determines the frame rate?
- a. Axial resolution
- b. Frequency
- c. Number of lines per frame
- d. Lateral resolution
4. Which type of resolution is an accurate representation of moving structures?
- a. Lateral resolution
- b. Azimuthal resolution
- c. Spatial resolution
- d. Temporal resolution
5. Which of the following is the type of transducer that utilizes elements arranged in a concentric pattern?
- a. Phased array
- b. Annular array
- c. Mechanical
- d. Linear
6. Which of the following would be considered an advantage of a curved linear array over a phased array transducer?
- a. Wider near field
- b. Linear scan lines
- c. Narrower near field
- d. Narrower far field
7. Which of the following is not a true statement about a mechanical transducer?
- a. It uses a motor to steer the beam
- b. Most transducers are no longer mechanical
- c. May be focused with a lens or phased focused
- d. There are no moving parts
8. Along with crystal diameter, the divergence in the far field is also determined by which of the following?
- a. Spatial Pulse Length
- b. Frequency
- c. Propagation speed
- d. Line density
9. Which of the following would cause a decrease in temporal resolution?
- a. Increased line density
- b. Decreased sector size
- c. Single transmit zone
- d. Decreased line density
10. Which of the following would cause an increase in frame rate?
- a. Multifocusing
- b. Increased line density
- c. Increased imaging depth
- d. Decreased imaging depth

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