SPI Practice (ARDMS A & B)Exam with correct question and perfect answers

SPI Practice (ARDMS A & B)Exam with correct question and perfect answers 1. C: 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 2. A: to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed 3. B: which imaging mode requires a broadband transducer? A.continuous wave doppler B.Pulsed wave doppler C.color flow imaging D.harmonic imaging 4. B: what is the doppler shift frequency? A. recieved ultrasound frequency multiplied by the transmitted ultrasound frequency B.difference between the transmitted ultrasound frequency and the received ultra- sound frequency C. sum of the transmitted and received ultrasound frequencies