Spi Board Exam Review (Gb) 2023/2024. (Gb) 600+ Complete Questions &aswers (100% Verified & Graded A+)|complete Guide|

Sound can be characterized as : A. energy flowing through a vacuum B. a variable C. cyclical oscillations in certain variables D. a principle of acoustics {Ans: C. Cyclical oscillations in certain variables}In diagnostic imaging, what determines the SPL? A. the ultrasound system B. the medium through which the pulse travels C. both A and B D. neither A nor B {Ans: C. Both A and B}Which of the following terms best describes the relationship between frequency and wavelength for sound traveling in soft tissue? A. reciprocal B. direct C. related D. inverse {Ans: D. Inverse}Under which condition is it permissible to perform a diagnostic ultrasound exam A. when the patient will benefit B. when the patient has insurance C. when the exam is perfectly safe D. when the benefits outweigh the risks {Ans: D. When the benefits outweigh the risks (it is proper to perform a diagnostic ultrasound exam when the benefit to the patient outweighs the risks that may be present).}Match the following prefixes with their meanings: A. mega 1. hundreds B. hector 2. thousands C. mill. 3. thousandths D. kilo 4. Millions E. nano 5. billions F. Giga 6. billionths {Ans: A-4