Edelmen's SPI Exam Review Test Questions & Answers
Edelmen's SPI Exam Review Test Questions & Answers-Sound waves are: a) electric b) mechanical, transverse c) spectral d) longitudinal, mechanical - D The speed of sound of ultrasound in soft tissue is closest to: a) 1,540 km/sec b) 1.54 km/sec c) 1,500 m/s d) 1,540 mm/sec - C Which is not an acoustic variable? a) density b) pressure c) distance d) intensity - D The effects of soft tissue on ultrasound are called: a) acoustic proliferation properties b) dynamic effects c) acoustic propagation properties d) biological effects - C All of the following are true EXCEPT: a) two waves with identical frequencies must interfere constructively. b) constructive interference is associated with waves that are in-phase. c) out-of-phase waves interfere destructively. d) waves of different frequencies may exhibit both constructive and destructive interference at different times. - A Put in decreasing order: a) deca b) deci c) micro d) centi - abdc ______ is the time to complete one cycle a) pulse duration b) pulse period c) period d) duration period - C Which of the following sound waves is ultrasonic and least useful in diagnostic imaging? a) 30 KHz b) 8 Mhz c) 8,000 Hz d) 3,000 Hz e) 15 Hz - A
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