Decibel db - Study guides, Class notes & Summaries

CAOHC Exam Prep Questions with 100% correct Answers Latest Updated . decibel is a unit of: - answers-sound intensity the frequency of sound is perceived as: - answers-pitch what is the first thing you should do when fitting earplugs? - answers-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 so...

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 is a de...

BICSI IN101 Exam Questions and Answers Graded A+ 2023 update Professionalism - Answer the competence or skill expected of a professional (How you look, sound, and feel) Actions of a professional - Answer Refrain from acts that cause background checks, time management, avoid arguments, park appropriot, do not steal time Principle of transmission - Answer The movement of information in either analog or digital form through copper conductors and fiber strands AC - Answer Alternating current...

Spectrum Field Technician 1 Test correctly answered already passed 2023Decibel (dB) - correct answer Relative # of signal gain or loss through a device or cable. Decibel millivolt (dBmV) - correct answer Absolute # of signal strength. Foreign voltage detector (FVD) - correct answer Detects unwanted voltage on cables/strands; test on plastics too. Data Over Cable Service Interface Specification (DOCSIS) - correct answer The international standard for adding high-bandwidth data to an exis...

BICSI Installer 1 Study Guide with Complete Solutions 25-pair color code - Correct 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 - Correct Answer Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua NVP - Correct Answer Nominal Velocity of Propagation Insertion loss - C...

Audiology Praxis 5343 Exam 2023 What is the relationship between fundamental frequencies and harmonics? - AnswerF0= lowest freq component of a complex periodic sound; harmonic is a regular and repeating multiple of the f0 In which frequencies and at what intensities are most speech sounds produced? - Answer-When applied to speech, the human voice spans a range from about 125Hz to 8kHz. 55-65 dB Define threshold - Answer-"Threshold is defined as the lowest decibel hearing level at wh...

When checking signal flow, the first thing you need to confirm is that the signal is _____. being generated by the source components What type of connection is pictured below? (wire under screw) direct connection What type of chart is displayed below? (activity/year/budget/actual) gantt chart This type of audio system reinforces or amplifies a presenter's voice so that they'll be heard over a larger audience. Speech Reinforcement System 0 dB SPL describes: the threshold of human hearing ...

Spectrum - Field Tech New Hire, Spectrum Field Tech New Hire Week 2 Questions and Answers Already Passed What does the "S" in S.A.F.E stand for? Stop What does the "A" in S.A.F.E stand for? Assess What does the "F" in S.A.F.E stand for? Focus What does the "E" in S.A.F.E stand for? Eliminate What are the three branches of the Safety Triangle? Knowledge Technique Attitude What (in electricity) is the direct cause of injury voltage (E), current (I), or resistance (R)? Current (I) Wha...

What is a logarithm? - Answer-A logarithm is an exponent based mathematical representation of a numerical value. What logarithmic base is used in digital communications? - Answer-Two How do you find a log2 value on a calculator that only has log10 functionality? (Hint: what is the formula?) - Answer-log2(a) = [log10(a) / log10(2)] What is the definition of a decibel? - Answer-A decibel is a mathematical representation of a power level on a logarithmic scale. a = 10lob(b), where a is th...

Progression: Construction Coordinator I - II Exam Answered Correctly. A chain trencher A return path sweep-and-alignment system is used to adjust which of the following? Anomalies, such as echoes and blind spots, can hide cable faults or cause a technician to misinterpret the signature of a time domain reflectometer (TDR) waveform. What causes an echo on a waveform TDR? As the RF signal travels on the coaxial cable, one portion of the signal may be attenuated more than the others. ...