Ultrasound Physics _SPI_ Mock Exam Questions & Answers

Ultrasound Physics _SPI_ Mock Exam Questions & Answers-Which of the following transducers will have the worst axial resolution? a. Vector array, 3 MHz b. Linear Sequential Array, 6 MHZ c. Linear Phased Array 7.5 MHZ d. Annular Array, 6 MHz - a. A sound wave is traveling in the body and propagates from muscle to air. What percentage of the sound wave is most likely reflected at the muscle-air boundary? a. 0.5% b. 75% c. 25% d. 5% e. 99% - b. Which of the following lists is in decreasing order? a. Mega, kilo, deca, milli, nano b. centi, mill, kilo, mega, nano c. micro, milli, deci, kilo, mega d. micro, kilo, mega, deci, milli e. mega, micro, deci, milli, hecto - a. During a diagnostic exam, which of these statements is most correct when describing the pulsed echo characteristics of an ultrasound system. a. The listening time may be one-thousand times longer than the pulse duration. b. the pulse duration is longer than the pulse repetition period. c. The pulse duration is similar to the listening time. d. The duty factor has a value close to 1 e. The pulse repitition period is similar to the period. - a. Which of the following parameters is determined by both the ultrasound system and the medium through which the sound travels? a. period