ARDMS SPI Exam Review TEST 5

August 16, 2017 By Rana Waqar Leave a Comment

1. What is pressure measured in?
- a. feet, inches, centimeters, or miles
- b. pascals or pounds per square inch
- c. kilograms per centimeter cubed
- d. hertz, kilohertz, or megahertz
2. What is essentially equal to the power of a wave divided by the area over which the power is distributed?
- a. Amplitude
- b. Power
- c. Intensity
- d. Absorption
3. Transducers have material within them that, when electronically stimulated, produces ultrasound waves. This is most likely some form of:
- a. Copperhirm titonize
- b. Zinconian sulfate
- c. Lead zirconate titanate
- d. Barium
4. What is the change in power if the amplitude triples?
- a. It doubles
- b. It triples
- c. It quadruples
- d. It increases nine times
5. The portion of the sound beam where the molecules are pulled apart describes an area of:
- a. Compression
- b. Rarefaction
- c. Refraction
- d. Amplitude
6. If only the density of a medium is increased, then the:
- a. Propagation speed will increase
- b. Propagation speed will decrease
- c. Propagation speed will stay the same
- d. None of the above
7. Sound is technically a:
- a. Transverse and longitudinal wave
- b. Mechanical and transverse wave
- c. Nonmechanical and pressure wave
- d. Mechanical and longitudinal wave
8. The maximum value or minimum value of an acoustic variable minus the equilibrium value of that variable describes the:
- a. Power
- b. Intensity
- c. Duty factor
- d. Amplitude
9. Which of the following would be considered ultrasonic?
- a. 10 Hz
- b. 12.5 Hz
- c. 1 MHz
- d. 200 Hz
10. Which of the following is considered the speed of sound in soft tissue?
- a. 660 m/s
- b. 330 m/s
- c. 1480 m/s
- d. 1540 m/s

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