Propagation speed - Study guides, Class notes & Summaries

SPI ARDMS PRACTICE QUESTIONS AND ANSWERS UPDATED Sound waves are: - CORRECT ANSWER-longitudinal, mechanical The speed of sound in soft tissue is closest to: - CORRECT ANSWER-1,500 m/s The frequency closest to the lower limit of ultrasound is: - CORRECT ANSWER-15,000 Hz Which is not an acoustic variable? - CORRECT ANSWER-intensity The effects of soft tissue on ultrasound are called: - CORRECT ANSWER-acoustic propagation properties All of the following are true EXCEPT: - CORRECT ANSWER...

When the direction of the wave propagation is parallel to the particle motion of the medium, the wave being transmitted is called a: A) surface wave. B) longitudinal wave. C) transverse wave. D) non-linear sound. - CORRECT ANSWER B) longitudinal wave If the sound beam attenuated 6 dB, what will happen to the overall intensity? A) Quadrupled B) Doubled C) Halved D) Quartered - CORRECT ANSWER D) Quartered Frequency increased from 3 MHz to 6 MHz, what will happen to ...

ARDMS SPI Practice Test (2024) || With Questions & All Correct Answers (Rated A+) ARDMS SPI Practice Test (2024) || With Questions & All Correct Answers (Rated A+) A slice-thickness phantom measures which plane of the transducer? a. the scanning plane b. The elevation plane c. The azimuthal plane d. The temporal plane - ANSWER - b. Which of the following is not a technique that will reduce grating lobes? a. Tissue harmonic imaging b. Apodization c. Subdicing d. Edge enhanceme...

ARDMS SPI Exam |Complete Questions with Correct Answers Graded A+ When the direction of the wave propagation is parallel to the particle motion of the medium, the wave being transmitted is called a: A) surface wave. B) longitudinal wave. C) transverse wave. D) non-linear sound. B) longitudinal wave If the sound beam attenuated 6 dB, what will happen to the overall intensity? A) Quadrupled B) Doubled C) Halved D) Quartered D) Quartered Frequency increased from 3 MHz to 6 MHz,...

Edelmen's SPI Exam Review Questions And Answers (Updated And Verified) Sound waves are: a) electric b) mechanical, transverse c) spectral d) longitudinal, mechanical - answerD 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 - answerC Which is not an acoustic variable? a) density b) pressure c) distance d) intensity - answerD The effects of soft tissue on ultrasound are called: a) acoustic proliferation ...

Which of the following statements about speed and attenuation are true? a. Attenuation through and propagation speed in a particular medium are unrelated to each other. b. When a sound beam travels faster in a medium, the attenuation is less. c. When a sound beam travels slower in a medium, the attenuation is more. - ️️Attenuation through and propagation speed in a particular medium are unrelated to each other. Which of the following lists is in increasing order? a. mega, kilo, milli...

Which is described as the ability of an object to resist compression and relates to the harness of a medium a stiffness b density c pressure d inertia a Stiffness An increase in PRF would lead to a an increase in DF b a decrease in PD c an increase in the number of cycles d decrease in resolution a an increase in DF Which of the following would have the highest propagation speed a air b bone c soft tissue d water b bone As imaging depth increases, PRF must: a...

SPI mock exam questions & answers 2024 Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle - ANSWER-D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor B. SPL C. operating frequency D. PRF E. propagation speed of the medium - ANSWER-B. SPL The Doppler shift frequency is proportional to the: A. ...

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 Which of these intensities is the smallest? a) SATP b) SPTP c) SATA - ️️C The effects of soft tissue on ultrasound are called: a) aco...

SPI Exam Questions & Answers 2024 What is described as the ability of an object to resist compression and relates to the hardness of a medium? - ANSWER-stiffness An increase in PRF would lead to - ANSWER-an increase in DF what has the higher propagation speed? air, bone, soft tissue or water - ANSWER-bone what has a lower propagation speed? water, soft tissue, bone or lung tissue - ANSWER-lung tissue as imaging depth increases, the PRF must - ANSWER-decrease what law describe...