Acoustic Study guides, Class notes & Summaries

What are the two main factors that affect the velocity of sound in seawater? CORRECT ANSWER The temperature and salinity of the water. A sound wave traveling from an area of warm water into an area of cold water will be affected in what way? CORRECT ANSWER It will bend toward the area of cold water. Sonobuoys that transmit an acoustic pulse and detect a resulting echo are classified as what type of sonobuoy? CORRECT ANSWER Active sonobuoys Sonobuoys equipped with an EFS system have what...

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

In general, mold modifications are as follows: - Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - checking MCL and UCL in quiet and noise. Sound field is - a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when - checking the telephone coil ...

psychoacoustics is the study of relationships between the __________ of a stimuli and _________ of them - ANS - physical characteristics; our psychological experience psychoacoustics is a subset of ______ - ANS - psychophysics the study of relationships between the physical characteristics of a stimuli and our psychological experience of them - ANS - psychoacoustics the general physical phenomenon of sound - ANS - acoustics main physical characteristics of acoustic stimuli (4): - ANS - -in...

BUILDING UTILITIES 3 Module 1 Lecture 4 ROOM ACOUSTICS EXAM QUESTIONS AND ANSWERS ROOM acoustics - answerdeals with sound in lecture or concert halls, meeting rooms and classrooms. −The character of the room greatly affects sound production, assisted by loudspeakers or not. Suitability - answeris determined by the correct choice and placement of sound-absorbing and sound-reflecting materials in a room (reverberance) and the prevailing (background) noise level in it. reflectors, sound-...

BUILDING UTILITIES 3: LIGHTING AND ACOUSTICS EXAM QUESTIONS AND ANSWERS SOUND - answerSensation stimulated in the organs of hearing by mechanical radiant energy transmitted as longitudinal pressure waves through the air or other medium. SOUND WAVES - answerA longitudinal pressure wave in air or an elastic medium ,esp. one producing an audible sensation. WAVE - answera disturbance or oscillation that transfers energy progressively from point to point in a medium or space without advance b...

1. Discuss the anatomy and physiology of the brain and brain stem. a. Explain the function of the twelve cranial nerves I – Olfactory (Smell) Function: Sensory, carries impulses for sense and smell Sign of Dysfunction: Loss or disturbance in the sense of smell. II – Optic (Sight) Function: Sensory, carries impulses for vision Sign of Dysfunction: decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent pupillary defect. (blindness) III – Oculom...

ARDMS,SPI Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What does rarefied mean? Answer: Stretched apart Q: Sound travels in a ________ line. Answer: Straight Q: Sound waves are ____________ waves. Answer: Longitudinal Q: What is the propagation speed dependent on? Answer: The medium Q: Are there any biologic effects on tissue? Answer: No Q: Sound waves are identified by Answer: O...

ATI Capstone Med Surg Questions And Answers 2021/2023 A nurse is caring for a client who is having surgery for the removal of an encapsulated acoustic tumor. Which of the following potential complications should the nurse monitor for postoperatively? (select all that apply.) A. Increased intracranial pressure B. Hemorrhagic shock C. Hydrocephalus D. Hypoglycemia E. Seizures correct answer: a. Correct: a client who has had a craniotomy should be monitored postoperatively for increased ic...

Which of the following best describes the relationship between time and frequency representations of a pure tone signal? a) Multiplicative b) logarithmically related c) inverses of one another d) additive e) related by power law - ANS - Inverses of one another One complete cycle of a sinusoidal wave represents a) a frequency of 1000Hz b) a 360-degree phase change c) two wavelengths d) a half-period e) compression