Certified Fiber Optics Final Exam Questions and Answers
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Course
FOA CFOT/Fiber Optics
Institution
FOA CFOT/Fiber Optics
Certified Fiber Optics Final Exam
Questions and Answers
the applications of optical fiber communications have increased at a rapid rate, since the first
commercial instillation of a fiber optic system in the - Answer ️️ -1970's
The loss of a signal strength is called - Answer ️️ -attenu...
Certified Fiber Optics Final Exam Questions and Answers the applications of optical fiber communications have increased at a rapid rate, since the first commercial instillation of a fiber optic system in the - Answer ✔️✔️-1970 's The loss of a signal strength is called - Answer ✔️✔️-attenuation A single binary digit Is called a - Answer ✔️✔️-Bit An eight bit group is called a - Answer ✔️✔️-Bite The _______ is used to express gain or loss in a fiber optic system or component - Answer ✔️✔️-
Decibel 1mw of power is ___dbm - Answer ✔️✔️-0 dbm A loss o f 3dbm is a _____ percent loss in power. - Answer ✔️✔️-50% Power is measured ______in a fiber optic system - Answer ✔️✔️-dbm Loss is measured in____ in a fiber optic system - Answer ✔️✔️-db light is electromagnetic energy with a ____wavelength and ____ fre quency than radio waves - Answer ✔️✔️-shorter, higher The _____ is used to measure light - Answer ✔️✔️-measure the deflection of light is called_____ - Answer ✔️✔️-refraction when light passes from one medium to another some of the light energy is _____bac k into the first material - Answer ✔️✔️-Reflected The refractive index profile describes the relation between the indices of ____ and ______.The core of the multimode optical fiber has the highest refractive index. - Answer ✔️✔️-Core, Cladding What makes u p an optical fiber - Answer ✔️✔️-core, cladding, coating mode is another name for - Answer ✔️✔️-Path single mode fiber have a _____core than multimode fibers - Answer ✔️✔️-smaller the part of the multimode optical fiber that functions as a mode filter is t he______ - Answer ✔️✔️-
cladding The standard core diameters of multimode fiber are___ and ___um. - Answer ✔️✔️-50nm, 62.5 _______strength is the ability of a fiber to be stretched or pulled without breaking - Answer ✔️✔️-
Tensile The Tensile strength of a f iber is_______ when it is bent - Answer ✔️✔️-Refracted The number of modes in an optical fiber decreases as the ___increases - Answer ✔️✔️-
Wavelength Bandwidth is and effective indication of the rate at which____ can be sent - Answer ✔️✔️-
Intelligence Grad ed index fibers uses numerous concentric layers of glass to reduce______ - Answer ✔️✔️-
Modal Dispersion The number of modes in an optical fiber ____as the core diameter decreases - Answer ✔️✔️-
Decreases in accordance with the (ISO) (IEC) 1801 specification s, the___ was designed for use with OM1 and OM2 fibers - Answer ✔️✔️-LED The (ISO)(IEC) 1801 specifications for laser optimized multimode optical fiber types are ___ and ____ - Answer ✔️✔️-0M3, OM 4 One of the methods to reduce___ dispersion is to increase the wavelength of the transmitter - Answer ✔️✔️-Modal Numerical Aperture is the light ___ ability of a fiber - Answer ✔️✔️-Gathering Light must enter threw the cone of ______ - Answer ✔️✔️-Acceptanc e NA range from about 0.500 for plastic fibers to ____ for multimode 50/125um graded index fibers - Answer ✔️✔️-.200 the rule of thumb for the bend radius of and inside, indoor -outdoor, outside, and/or drop cable when not subjected to Tensile loading is __ _ times the outside diameter. - Answer ✔️✔️-10 times Material safety data sheets are ____ when chemicals are used - Answer ✔️✔️-Required NA mismatch is an___ factor - Answer ✔️✔️-Intrinsic Lateral displacement and end separation are ____ factors - Answer ✔️✔️-Extrensic
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