Spi mock exam - Study guides, Class notes & Summaries

SPI MOCK EXAM 163 Questions and MULTIPLE CHOICE Answers latest 2023.

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SPI Mock Exam Verified Solutions How does increasing transmit power affect patient safety? ️️Increasing transmit power boosts image brightness and penetration but also raises patient exposure, so it’s used carefully to maintain safe levels. What is the role of frequency in determining axial resolution? ️️Higher frequencies produce shorter wavelengths, which improve axial resolution by allowing finer detail along the ultrasound beam’s path. Explain how spatial pulse leng...

SPI MOCK EXAM QUESTIONS & ANSWERS 2024 When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - ANSWER-compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - ANSWER-freq. What happens to venous flow return to the HEART when a person INHALES? - ANSWER-increases What establishes the freq. of an US wave? - transduc...

SPI MOCK Exam | Questions and Correct Answers | Latest Update 2024/2025 Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor B. SPL C. operating frequency D. PRF E. propagation speed of the medium B. SPLThe Doppler shift frequency is proportional to the: A. Cosi...

What is the best estimate of the distance that sound can travel in soft tissue in one second? - 1 yard - 100 yards - 1 mile - 10 miles - ️️1 mile Which of the following is NOT one of the physical processes that contributes to attenuation of US waves passing through soft tissue? - reflection - redirection of sound in many directions - focusing - conversion of acoustic energy to heat - ️️focusing What term describes the # of cycles that an acoustic variable completes in a secon...

SPI MOCK EXAM Questions With Verified Answers When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - answercompressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - answerfreq. What happens to venous flow return to the HEART when a person INHALES? - answerincreases What establishes the freq. of an US wave? - transducer - medium throu...

SPI MOCK EXAM 163 Questions and MULTIPLE CHOICE Answers latest 2023.

SPI MOCK EXAM QUESTIONS & ANSWERS 2023/2024 A transducer with which frequency would have the thickest element(s)? 2 MHz 3.5 MHz 5 MHz 7.5 MHz - ANSWER-7.5 MHz An ultrasound transducer converts: Electrical energy into light and heat Electrical energy into mechanical energy Mechanical energy into radiation Sound into ultrasound - ANSWER-Electrical energy into mechanical energy Which of the following can be changed by the operator? Frequency Wavelength Propagation speed Pulse r...

SPI mock exam questions & answers 2023/2024 Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle - ANSWER-D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor B. SPL C. operating frequency D. PRF E. propagation speed of the medium - ANSWER-B. SPL The Doppler shift frequency is proportional to the: ...