Spi mock examdocx - Study guides, Class notes & Summaries

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 - correct 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 - correct answer B. SPL The Doppler shift frequency is proportional to the: A. Cosine values B. Doppler a...

When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - correct answer compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - correct answer freq. What happens to venous flow return to the HEART when a person INHALES? - correct answer increases What establishes the freq. of an US wave? - transducer - medium throug...