SPI ARDMS EXAM QUESTIONS AND ANSWERS/STUDY GUIDE LATEST UPDATE
What type of wave is sound? Correct Ans ~ mechanical and longitudinal The frequency ranges for ultrasound are: Correct Ans ~ >20 kHz The speed of sound in soft tissue is: Correct Ans ~ 1540 m/s which of the following transducers fires the elements in groups? A. Linear sequenced array B. Phased array C. Continuous-wave transducer D. Single-element transducer Correct Ans ~ A Enhancement is caused by** Correct Ans ~ weakly attenuating structures wavelength in material having a propagation speed of 1.5mm/µs w/transducer frequency of 5.0 MHz is: ** Correct Ans ~ .3mm 1.5mm/µs / 5MHz =.3mm An ultrasound transducer converts ** Correct Ans ~ electrical energy into mechanical energy
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