SPI PRACTICE QUESTIONS & ANSWERS 2024

SPI PRACTICE QUESTIONS & ANSWERS 2024 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 order: deci, deca, micro, centi - ANSWER-deca, deci, centi micro ______________ is the time to complete one cycle - ANSWER-period Which of the following sound waves is ultrasonic and least useful? - ANSWER-30 KHz What is the frequency of a wave with a 1 msec period? - ANSWER-1 KHz ______________ is the distance covered by one cycle - ANSWER-wavelength Which of the following is determined by the source and the medium? - ANSWER-range resolution