Decibel db Study guides, Class notes & Summaries

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 ...

BNSF Telecom 1 Exam Questions with Correct Answers VHF - Low and High range Very High Frequency - Answer-Low is 30 to 50 MHz High is 150 to 300 MHz UHF - Ultra High Frequency - Answer-300 MHz - 3 GHz Super High Frequency - SHF - Answer-3-30 GHz Extremely High Frequency - EHF - Answer-30-300 GHz Legacy Band - Answer-25 kHz wide channel Very Narrowband - Answer-6.25 kHz wide, digital Narrowband - Answer-12.5 kHz wide analog What is dB and how much power is it - Answer-dB...

EDUC 230 Exam #3I.D.E.A definition of deafness - correct answer - a hearing loss that is so severe that the child is impaired in processing linguistic information through hearing, with or without amplification that... - adversely affects a child's educational performance I.D.E.A. definition of hearing loss - correct answer - a loss of hearing, whether permanent or fluctuating that adversely affects a child's educational performance but that is not included under the definition of deafness ...

________ _________ reflects the relationship between the allowable exposure time and the noise intensity level. a. action level b. exchange rate c. noise rating d. dose level - a. action level A biological calibration check should be completed __________? a. daily prior to audiometric testing b. at the end of the day c. once a month d. annually - a. daily prior to audiometric testing A change in hearing threshold (+ or -) relative to the baseline audiogram, of an average of 10 dB or ...

Unit of measurement for frequency (pitch) Correct Answer-Hertz (Hz) Unit of measurement for intensity (loudness) Correct Answer-Decibel (dB) Risk of damage from noise Correct Answer-How loud (intensity) and how long (duration) Steady-state or continuous noise, e.g. generator Correct Answer-Lasts 1 second or longer Impulse or Impact noise, e.g. gunfire or nail gun Correct Answer-Lasts less than one second Parts of the outer ear Correct Answer-Pinna and external auditory canal Pa...

25-pair color code - ANSWER-White - Blue, orange, green, brown, slate Red - Blue, orange, green, brown, slate Black - Blue, orange, green, brown, slate Yellow - Blue, orange, green, brown, slate Violet - Blue, orange, green, brown, slate Fiber color code - ANSWER-Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua NVP - ANSWER-Nominal Velocity of Propagation Insertion loss - ANSWER-The difference in the amount of power received before and after something...

Logarithm - is the exponent of base 10 that equals the value of a number In decibel formulas how should values be logically arranged when comparing two numbers (V1 / V2) - If you expect a gain, place the higher number first. If you expect a loss, place the smaller number first. Explain negative decibel values - measurement just means "less than before," or in this case, "less than the reference level. It does not mean the basic unit it represents has a negative value Decibel - describes...

PDD Final Exam Questions & Answers 2024/2025 Acoustics - ANSWERSdisturbance of molecules on an elastic medium Attenuation - ANSWERSReduction of sound Decibel (dB) / dBA - ANSWERS- Units of sound intensity. dBA is weighted to the human ear, while dB is logarithmic - 70 dB sounds 2x as loud as 60 dB; 10 dB difference 20 dB increase will sound 4x as loud 0 dB - ANSWERSno noise 30 dB - ANSWERSsoft music or rustling leaves 40 dB - ANSWERSquiet office 75 dB - ANSWERSvacuum clea...

CAOHC Exam Study Guide – Questions With 100% Correct Answers Updated 2024/2025 (GRADED) Unit of measurement for frequency (pitch) - answersHertz (Hz) Unit of measurement for intensity (loudness) - answers-Decibel (dB) Risk of damage from noise - answers-How loud (intensity) and how long (duration) Steady-state or continuous noise, e.g. generator - answers-Lasts 1 second or longer Impulse or Impact noise, e.g. gunfire or nail gun - answers-Lasts less than one second Parts of the outer ...

hertz is a unit of: - Answer-sound frequency decibel is a unit of: - Answer-sound intensity the frequency of sound is perceived as: - Answer-pitch what is the first thing you should do when fitting earplugs? - Answer-a. pull the top of the ear to align the ear canal b. roll the earplug down into a tight, crease-free cylinder c. CHECK THE EAR CANAL FOR ANY OCCLUSIONS d. insert the earplug deep into the ear canal hearing tests do not have to be conducted in a sound booth as long as ...