FOA- Fiber Optic Certification Exam T/F

50/125 microns represents a single mode fiber size - answer-False- Single mode fiber is 8/10 microns Cable that is resistant to water damage is - answer-loose tube Composite cables have only fiber - answer-false- they also have copper Connector - answer-non permanent connections Damage to fiber optic cable caused by excessive pulling can be reversed by sending the cable back to the factory. True Or False? - answer-False Distribution cables use mass fusion splicing - answer-False- Ribbion cable uses mass fusion double-stick tape can be used for - answer-collecting and disposing of bare fiber ends. fiber is pulled on the? - answer-Strength Member Fiber optic joints should have - answer-low loss and high mechanical strength For long cable pulls, - answer-the pull should be split up into two or more stages. For safety, all fiber optic work areas must - answer-have sufficient work space Fusion Splicers should not be used - answer-in places that may contain flammable gasses Fusion splicing - answer-permanent singlemode connection In graded index multi mode fiber, does the light travel faster near the center or the outside of the core? Why? - answer-Travels faster outside because the slight change in glass type in order for all rays of light to reach the end at the same time. Installed fiber must be - answer-documented, tested, and terminated correctly. instrument for checking continuity fiber tracing - answer-visual fault locator instrument for checking duplex connector polarity - answer-visual fiber tracer instrument for connector faults such as dirt scratches - answer-Inspection microscope instrument for fault location, splice loss - answer-OTOR graph instrument for insertion loss - answer-Light source and power meter instrument for source or receiver power - answer-power meter Large core step-index is the most common in plastic optical fiber - answer-True List five causes of attenuation in fiber optic connections. - answer-Cores don't line up, NA Miss-Match/wrong patch cord, Dirt on connector, Under polished, End Angle, End Gap, Coaxiality, Axial Run-out, Concentricity, Core ellipticity. List five steps for a mechanical connector installation. - answer-Strip Wire, Clean, Cleave, insert and lock in place, Test. List the Color Code in Order. - answer-Blue Orange Green Brown Slate White Red Black Yellow Violet Rose Aqua List the tools and supplies required for preparation of the ends of tight buffer tube cables. - answer-Razer, strippers, scissor, glasses, closed toe shoes, tape, rubber mat, sufficient work space. Loose tube may require the instalation of what - answer-Breakout kit mechanical splicing - answer-restoration or multimode joints Most singlemode field terminations are made by - answer-fusion splicing a factory pigtail onto the cable Multimode Fiber has a greater bandwidth than single mode fiber - answer-False - Single mode has less dispersion: more bandwidth No fiber optic cable needs to be grounded - answer-False - any electronic material must be grounded Orange cable contains multimode fiber - answer-True Outside cable resistant to rodents - answer-Armored cable Pulling from the center to the ends is a way of pulling long cables in conduits - answer-True Single mode fiber cables are usally color coded in gray - answer-Fase - Yellow Telcom Fttx is typically - answer-single mode fiber Telecom FTTx is typically single mode fiber - answer-True The cable that is used indoors in air handling areas is - answer-plenum rated cable The cladding is the portion of the fiber you are removing during stripping - answer-The buffer is what you take off The most important safety concern specific to fiber optics is? - answer-Shards of bare fibers getting stuck in skin or eyes. The reference cables that are used during testing must be chosen for their low loss characteristics - answer-True The testing phase of a project is when you do loss/budget anaylisis - answer-False - should be done in the planning stage Unit for measuring absoulute power - answer-dBm Unit for measuring bandwidth - answer-GHz Unit for measuring cable length is - answer-Feet or meters