Orthogonal signals Study guides, Class notes & Summaries

Different tissues that have signals that appear similar on an MR image are described as: A) hypointense B) hyperintense C) isointense D) isodense - Answer isointense in a large main magnetic field such as those employed in MRI, the motion of a hydrogen proton has been described as wobbling like a spinning top. this motion is called A) precession B) resonance C) frequency D) angular momentum - Answer precession magnetic resonance imaging is derived from the process known as: A) ma...

CT Registry Review (MIC) Questions and Answers Rated 100% In order for an x-ray photon to be measured it must: 1. enter the detector chamber 2. be absorbed by the detector material 3. be converted to a measurable event *ANS* 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? *ANS* analog-to-digital converter Which of the following is NOT a function of a PACS system? a. reconstruction of the image from the raw d...

Progression: Maintenance Tech I - II Conventional: Exam In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? What technologies are defined in DOCSIS 4.0 to help sustain the hybrid fiber/coax (HFC) network infrastructure for several more years? How can a less-experienced technician identi...

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...

NCTI ROC II BOOK II FINAL Test 1 When pressure testing a drop system to check for leakage, What must be done before applying the test signal? - ANSWER The technician must isolate the drop system from the hybrid fiber/coax (HFC) network by disconnecting the drop at the distribution tap. Why do some leakage detection systems utilize a leakage carrier modulated with a tagging signal? - ANSWER To avoid false detection of l...

NCTI FINAL EXAM: PROGRESSION FIELD TECH III- IV TEST EXAM| LATEST UPDATE 2023/ 2024| Complete Solutions 1. As a subscriber enters a hotspot area, what signals their mobile wireless device of an available Wi-Fi network?  Answer: The access point (AP) advertises to the wireless device to enable connection. 2. Which is the largest IEEE 802.11 data frame that can traverse a wireless local area network (WLAN) without fragmentation?  Answer: 2,346 bytes. 3. What is the...

When pressure testing a drop system to check for leakage, What must be done before applying the test signal? Answer The technician must isolate the drop system from the hybrid fiber/coax (HFC) network by disconnecting the drop at the distribution tap. Why do some leakage detection systems utilize a leakage carrier modulated with a tagging signal? Answer To avoid false detection of leaks. When all three sections of a pulse code modulator (PCM) are combined, what function can be performed? A...

Lecture 5 - introduction to EEG Questions with Solutions 2024 EEG- what does it stand for? Electroencephalogram Electro- meaning electrical encephalo- meaning releating to the brain gram- measurement sometimes called electroencephalography Invention of EEG (who and why) Hans Berger () A neurologist interested in extra-sensory perception Wanted to measure 'brainwaves' responsible for telepathy- this was because of a near death experience where he thought that he could tele...

WGU D413 Telecommunication and Wireless - Questions and Answers What Type of multiplexing is OFDM? Orthogonal frequency-division multiplexing Digital What Type of multiplexing is TDM? Time-division multiplexing (TDM) Digital What Type of multiplexing is DWDM? Dense wavelength-division multiplexing (DWDM) Optical What Type of multiplexing is FDM? Frequency-division multiplexing Analog/Digital What Type of multiplexing is ATDM? Asynchronous Time Division Multiplexing Digital What Type of multipl...

What functionality is integrated in all modern signal level meters (SLM) to measure specific parameters of a digital modulation carrier containing digital television (DTV) and Data Over Cable Service Interface Specification (DOCSIS) signals? Correct Answer Digital signal analyzer functionality What is a risk of performing automated measurements on a sample of channels instead of all channels? Correct Answer Problems in unmeasured channels may go undetected. Using a digital signal analyzer,...

ROC I: Lesson Quizzes Only what enables set-top boxes (STB) and data over cable service interface specification (DOCSIS) modems to operate as completly separate systems that operate independent of each other? - STB and DOCSIS modems are assigned different upstream channels with different upstream channels with dedicated receivers in the headend what did the 1.1 version of DOCSIS introduce, incorporating solutions for transporting real-time data applications (such as voice traffic) over...