Spi Practice Questions Study Guide Rated A+

Sound intensity is decreased by 75%. How many decibels of attenuation is that? {Ans: 6 dB}The dynamic range is the ratio of the smallest to the largest ____________ that a system can process without distortion {Ans: amplitude}If the intensity is increased by 3 dB, it: {Ans: doubles}A pulse is emitted by a transducer and is traveling in soft tissue. The go-return-time, or time-of-flight, of a sound pulse is 130 microseconds. What is the reflector depth? {Ans: 10 cm}With an unfocused transducer, what is the area from the face of the transducer to where the beam diverges called? {Ans: near field}Power of sound has units of: {Ans: watts}