Download BICSI IN250 Optical Fiber Review | 100% Correct Answers | Verified | Latest 2024 Version and more Exams Health sciences in PDF only on Docsity!
BICSI IN250 Optical Fiber Review | 100% Correct
Answers | Verified | Latest 2024 Version
What is the 1st step you should take to safely assist an injured person during an emergency? - ✔✔Survey the Scene When Surveying a Victim what does the B in ABC stand For? - ✔✔Breathing When do safety codes normally require the use of a GFCI? - ✔✔Extension Cords & Temporary Wiring What Ladder Materials Can be used around electricity? - ✔✔Wood, Fiberglass & NonConductive How far should the base of an extension ladder that is extended 12m(40ft) up be placed from the surface it is positioned against? - ✔✔3m (10ft) which is 1/4 ratio ITS cabling installers must wear hard hats that provide protection from. - ✔✔falling objects, electrical shock & blows to the head TRUE / FALSE " No fall protection device (harness) is required when the scissor lift is equipped with an approved barrier surrounding the user. - ✔✔TRUE In Relation to fire safety, what does the "C" in "RACE" stand for? - ✔✔Confine Who is responsible for providing the MSDS? - ✔✔Manufacturer What is used to neutralize small acid spills? - ✔✔Baking Soda Where should optical fiber glass shards be stored or deposited during termination? - ✔✔Designated container fitted with a secure lid Most optical fiber transmission light is - ✔✔Invisible
TRANSMISSION REVIEW SECTION - ✔✔
This method of transmission allows signals to be transmitted in either direction but in only one at a time.
- ✔✔Half Duplex The number of cycles a signal is repeated in a given time frame is called - ✔✔Frequency The basic unit of digital transmission is a - ✔✔Bit Which of the following terms quantifies the bandwidth of a cabling system and relates to the information-handling capability of a given media - ✔✔Megahertz Most new fiber optic network installations use - ✔✔50/125um multimode laser optimized cable Increasing either the length of an optical fiber cable or the wavelength of the light source will - ✔✔decrease the bandwidth The spreading out of light pulses in an optical fiber cable due to the multiple paths taken by many modes as they travel down the fiber is known as - ✔✔Modal Dispersion Multimode optical fiber attenuation is referenced in_________ and is affected by the_______________ - ✔✔dB/km, Wavelength of the light source STRUCTURED CABLING SYSTEMS REVIEW QUESTIONS - ✔✔ A structured ITS cabling system is intended to serve a wide range of uses including access to - ✔✔plain old telephone services , innovative telephone services & computer networking How many backbone levels are allowed in a structured cabling system? - ✔✔ 2
Which finished grade of plywood has knotholes removed and replaced with a patch of clean wood? - ✔✔B How high should the bottom of plywood be mounted above the finished floor (AFF)? - ✔✔203mm (8 in) What are the two common widths that are available for equipment racks? - ✔✔483mm (19 in) and 584mm (23 in) What is the amount of vertical space associated with a "rack unit" or "U"? - ✔✔45mm (1.75 in) INSTALLING SUPPORT STRUCTURES REVIEW - ✔✔ Which of the following pathways has the thinnest wall thickness and uses fittings that are threaded onto it? - ✔✔IMC Flexible metallic conduit is NOT recommended because it tends to - ✔✔creep, shift & cause damage to cables Limit installation of flexible metallic conduit to - ✔✔6.1m (20ft) A hand bender can be used for conduits up to_________diameter - ✔✔35mm (1 1/4 trade size) What is the minimum bend radius for a 50mm (2in) conduit? - ✔✔300mm (12in) TRUE / FALSE " Only a roll-type cutter should be used on EMT - ✔✔False What is the maximum number of 90 degree bends allowed between two pull boxes that are 9m (30ft) apart? - ✔✔ 3
When installing optical fiber, consider placing 3 innerducts in a 103 mm (4 trade size) conduit in the following sizes______________ - ✔✔Two 38 mm (1.5 in), one 25 mm (1 in) Installed open-top cable supports should provide minimum of _____________________clearance above ceilings. - ✔✔77 mm (3 in) GROUNDING & BONDING REVIEW QUESTIONS - ✔✔ Grounding and bonding design specs are in which ANSI/TIA/EIA standards and NEC articles? - ✔✔ANSI Standard 607; NEC Articles 250, 800 What is the most common cause of electrical shock? - ✔✔Inadvertent contact with energized circuits Until Verified , always assume that equipment is - ✔✔Energized Who or what should the ITS installer look to when resolving conflicts between codes, BICSI guidelines and manufacturer requirements? - ✔✔Authority Having Jurisdiction (AHJ) & Manufacturer installation guidlines Define the telecommunications bonding and grounding acronym TMGB - ✔✔Telecommunications Main Grounding Busbar Where does a large telecommunications bonding and grounding infrastructure originate? - ✔✔Service equipment ground TRUE/ FALSE "If a rack contains active equipment, powered with a cord that includes a grounding conductor, no additional grounding or bonding is required ". - ✔✔FALSE Under which of the following conditions would an interbuilding cable NOT be considered exposed to lightning? - ✔✔In a metropolitan area populated with tall buildings & a 27 m (90 ft) long direct buried armored cable, bonded at both ends
Which of the following is NOT a basic test to verify each tube prior to fiber placement in a blown system?
- ✔✔Distance Test FIRESTOPPING REVIEW QUESTIONS - ✔✔ The most common principle in firestopping is - ✔✔compartmentation BICSI recommends installing______cables in all commercial buildings. - ✔✔listed Which rating limits the temperature rise to 163 degrees C (325 F) plus room temperature? - ✔✔T Which is better for an " L " rating? - ✔✔Low Numbers Which property allows a firestop to develop a hard char and become rigid when exposed to heat? - ✔✔Ablative Which of the following may be required each night during construction when fire-rated barriers are penetrated but NOT firestopped? - ✔✔Fire Watch In the UL fire-rated designation CAJ-8049 the "C" indicates - ✔✔combination A pipe choke assembly is comprised of a metal collar surrounding an_____________material - ✔✔intumescent TERMINATING CABLE REVIEW QUESTIONS - ✔✔ Optical fiber cables transmit light pulses generated by a(n) - ✔✔Laser or LED
Which of the following connectorization methodologies requires a portion of the fiber strand to be detached from the connector? - ✔✔Scribe and Polish Which of the following connectorization methodologies uses a connector containing index - matching gel? - ✔✔Cleave and Secure When using 62.5/125 um multimode optical fiber, what color adaptor should be used? - ✔✔beige When using 50/125 um multimode laser enhanced optical fiber what color adapter should be used? - ✔✔aqua Which of the following termination processes typically using a two-part chemical application? - ✔✔Anaerobic Which of the following termination processes requires no curing process? - ✔✔CRIMP The Acrylate coating on an optical fiber usually has an outside diameter (OD) of - ✔✔125 um What is the number one cause for troubleshooting in optical networks? - ✔✔Contamination A device that provides automated or semi-automated mechanical and / or chemical action to clean the connector end face is a - ✔✔cleaning machine SPLICING CABLE REVIEW QUESTIONS - ✔✔ One of the major methods of optical fiber splicing is - ✔✔FUSION Optical splices are arranged in trays or organizers in groups of - ✔✔6, 12 & 24 Which method of optical fiber splicing has a high initial investment outlay? - ✔✔FUSION
In a _____________ only the loss of the optical fiber link segment and one connection are measured - ✔✔single interconnection This is used to test the physical shape of the connector end face - ✔✔Interferometer PROFESSIONALISM REVIEW QUESTIONS - ✔✔ Cabling companies are dependent on __________ for new and repeat business - ✔✔customers Todays installer must be a highly skilled professional, a ____________ member and __________________ learner - ✔✔team , ongoing Communication is _________ body language - ✔✔55% Communications must be____________ clear , concise ___________, truthful and free from unacceptable language. - ✔✔timely , unbiased Always find one ________ thing to say. - ✔✔positive PLANS & SPECIFICATIONS REVIEW QUESTIONS - ✔✔ Detailed information identifying materials to be used , applicable standards and testing methods would be found in the - ✔✔Specifications The HVAC information is found in the ________ drawings - ✔✔mechanical The location of a building within a campus of buildings is shown on which drawing? - ✔✔SITE What 50-division document is used in the construction industry to standardize the format of specifications? - ✔✔MasterFormat
What type of cutover will cause the customer to lose all communications during the cut? - ✔✔Hot Which of the following provides a quick graphical representation of how the circuit is laid out? - ✔✔circuit layout record Communications must be____________ clear , concise ___________, truthful and free from unacceptable language. - ✔✔
