Spi Practice Questions Exam 1 Questions And Answers 2024/2025( A+ Graded 100% Verified).

What will be affected by the power? {Ans: echo amplitude beam intensity acoustic exposure to the patient display dot brightness}On pulse-echo equipment, the transducer actually transmits {Ans: under 1% of the time}The characteristic acoustic impedance of a medium equals the product of {Ans: density and speed of sound}What best describes a sound wave? {Ans: A mechanical longitudinal wave}When pressure is applied to an ultrasonic transducer crystal, it causes the crystal to: {Ans: produce an electrical signal}Manipulating the output power control of an ultrasound instrument does NOT affect the {Ans: pulse repetition frequency}