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SPI Practice (ARDMS A & B) Questions And Answers 2023.SPI Practice (ARDMS A & B) Questions And Answers 2023.SPI Practice (ARDMS A & B) Questions And Answers 2023.p

Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - Answer- d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - Answer- d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetration c. causes poor axial and lat...

Sound waves are: - Answer- longitudinal, mechanical The speed of sound in soft tissue is closest to: - Answer- 1,500 m/s The frequency closest to the lower limit of ultrasound is: - Answer- 15,000 Hz Which is not an acoustic variable? - Answer- intensity The effects of soft tissue on ultrasound are called: - Answer- acoustic propagation properties All of the following are true EXCEPT: - Answer- two waves with identical frequencies must interfere constructively Put in decreasing...

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SPI PRACTICE (ARDMS A & B) MULTIPLE CHOICE SOLUTION 2023 What is dynamic aperture? A.aperture that varies with transmit frequency B.aperture that decreases as a function of time C.aperture that increases with increasing focal length D.aperture that changes as a function of frame rate to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed which imaging mode requires a broadband transducer? A.continuous wave dopple...

SPI Practice Questions Answers A Which of these terms means 'many gray shades'? A wide dynamic range B bistable C high contrast D highly compressed signal E few choices ️A wide dynamic range Which of the following will result in the highest mechanical index? A high intensity and high frequency B low frequency and high signal amplitude C low intensity and low frequency D high frequency and low power ️B low frequency and high signal amplitude mechanical index is inver...

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