ARDMS SPI Exam Review TEST 1 August 16, 2017 By Rana Waqar Leave a Comment 1. Which of the following is described as the ability of an object to resist compression and relates to the hardness of a medium? a. Stiffness b. Density c. Pressure d. Inertia 2. An increase in pulse repetition frequency would lead to: a. An increase in duty factor b. An increase in pulse duration c. An increase in the number of cycles d. A decrease in resolution 3. Which of the following would have the highest propagation speed? a. Air b. Bone c. Soft tissue d. Water 4. Which of the following would have the lowest propagation speed? a. Water b. Soft tissue c. Bone d. Lung tissue 5. As imaging depth increases, the pulse repetition frequency must: a. Not change b. Increase c. Decrease d. Pulse repetition frequency does not relate to imaging depth 6. Which of the following describes the amount of refraction that occurs at an interface? a. Bernoulli’s law b. Poiseuille’s law c. Law of reflection d. Snell’s law 7. Pressure is typically expressed in: a. Frequency b. Pascals c. Decibels d. Kilograms per centimeter cubed 8. The typical range of frequency for diagnostic ultrasound imaging is: a. 20 to 20,000 Hz b. 1 to 20 MHz c. 10 to 20 MHz d. 12 to 100 MHz 9. The attenuation coefficient in soft tissue is equal to: a. One half of the operating frequency b. Double the operating frequency c. Frequency times path length d. The total decibels 10. Micro denotes: a. Millionth b. Hundredth c. Million d. Billionth Δ For More questions please join Our facebook group: https://www.facebook.com/groups/249298882082586/?ref=br_rs
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