Question 1
An ultrasound wave travels through two different media. If the propagation speed in the second medium is lower than in the first, what happens to the wavelength of the sound wave?
Correct Answer:
It decreases.
Question 2
A sonographer observes that the intensity of the ultrasound beam has decreased by 3 dB. This corresponds to what change in intensity?
Correct Answer:
A twofold decrease
Question 3
Which of the following properties of a medium has the most significant influence on the propagation speed of an acoustic wave?
Correct Answer:
Stiffness
Question 4
Acoustic impedance is calculated by multiplying which two properties of a medium?
Correct Answer:
Density and Propagation Speed
Question 5
While scanning a patient's liver, you switch from a 3 MHz transducer to a 6 MHz transducer. Which of the following is the most likely consequence of this change?
Correct Answer:
Increased attenuation of the ultrasound beam
Question 1
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About this Exam

Prepare with the ARDMS SPI (Sonography Principles & Instrumentation) Exam practice quiz. This question bank includes 110 questions covering sonographer, ultrasound, doppler, transducer, and color. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ARDMS SPI (Sonography Principles & Instrumentation) Exam

This practice set contains 110 questions from the matching question bank and focuses on sonographer, ultrasound, doppler, transducer, and color. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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