ARDMS SPI Exam Review TEST 8

August 18, 2017 By Rana Waqar Leave a Comment

1. Which type of interference results in a larger sound wave?
- a. Constructive interference
- b. Destructive interference
- c. True interference
- d. False interference
2. Which of the following transducers uses a motor for steering the beam?
- a. Linear phased array
- b. Sequential linear array
- c. Mechanical transducer
- d. Curvilinear sequenced array
3. Which of the following best describes the components of the damping material?
- a. Epoxy resin loaded with tungsten
- b. Tungsten resin loaded with lead zirconate titanate
- c. Lead zirconate titanate impregnated with tungsten
- d. Tungsten impregnated with lead
4. Which of the following is not true of the linear sequenced array transducer?
- a. Rectangular shape image
- b. Firing is sequenced
- c. Electronically focused
- d. The elements are arranged in a ring
5. Which of the following is not a true statement?
- a. Lateral resolution varies with depth
- b. A larger aperture results in a shorter near zone length
- c. A larger aperture produces less divergence in the far field
- d. Lateral resolution may also be referred to as azimuthal resolution
6. Which of the following is not true of damping?
- a. Damping decreases the number of cycles in a pulse
- b. Damping decreases spatial pulse length
- c. Damping worsens axial resolution
- d. Damping decreases the sensitivity of the transducer
7. Which of the following is not a synonym for axial resolution?
- a. Angular
- b. Range
- c. Depth
- d. Radial
8. Temporal resolution relates to which of the following?
- a. Lateral resolution
- b. Frame rate
- c. Range ambiguity
- d. Element diameter
9. Which of the following may also be referred to as the far zone?
- a. Frame zone
- b. Fresnel zone
- c. Fraunhofer zone
- d. Frankincense zone
10. What states that waves are the result of the interference of many wavelets produced at the face of the transducer?
- a. Curie’s principle
- b. Snell’s law
- c. Bernoulli’s law
- d. Huygen’s principle

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