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ETA-I Study Guide (Fiber Optics Installer Certification) (FOI)Correct 100% $8.49   Add to cart

Exam (elaborations)

ETA-I Study Guide (Fiber Optics Installer Certification) (FOI)Correct 100%

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  • FOA CFOT
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  • FOA CFOT

An optical fiber works based off of a principle known as; - ANSWER Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? - ANSWER Refraction. Light is electromagnetic radiation in the wavelength ...

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  • September 18, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • eta i study guide
  • FOA CFOT
  • FOA CFOT
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ETA-I Study Guide (Fiber Optics Installer
Certification) (FOI)Correct 100%
An optical fiber works based off of a principle known as; - ANSWER Total Internal Reflection.



The bending of light as it passes from one transparent material into another which has a different
refractive index is what? - ANSWER Refraction.



Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and
_______________. - ANSWER Infrared.



What are the three parts of a typical optical fiber? - ANSWER Core, Cladding, buffer Coating. (3 C's)



A simple fiber optic system consists of what four components? - ANSWER Transmitter, receiver, fiber, and
connector.



Which optical fiber is most suited for very high speed and long distance applications? - ANSWER Single-
mode.



The reduction of power as a signal passes through a system is called (Also known as signal loss); -
ANSWER Attenuation.



A fiber optic cable which has single-mode and multi-mode optical fibers is what kind of cable? - ANSWER
Hybrid.



A fiber with it's core having numerous concentric layers of glass, with each layer having a lower index of
refraction is what kind of fiber? What is the core size and how is it identified now? - ANSWER Multi-
mode graded-index.

, The spreading of light pulses as they take different paths in traveling down a fiber is known as what? -
ANSWER Modal Dispersion.



What are the two widely used methods for installing buried fiber optic cables? - ANSWER Trench and
Plow methods.



What configurations should be used when the center pull or backfeeding techniques are used to pull in
cables? - ANSWER Figure 8's.



During the installation of fiber optic cables, innerduct serves what two main purposes? - ANSWER
Expansion and Protection.



Two basic methods used for installing lashed aerial cables are; - ANSWER Stationary reel (pull-in) and
moving reel (drive-off).



Two manufacturer's ratings or specifications that installers must always obey during fiber optic cable
installations are; - ANSWER Tensile strength and bend radius.



What are the three main parts of a connector? - ANSWER Boot, body, ferrule.



According to the TIA/EIA 568 standards, what is the maximum insertion loss allowed for a mated pair of
connectors? - ANSWER .75 dB.



The connector ferrule can be made of what three materials? - ANSWER Ceramic, plastic, steel.



What is the most common type of cleaver used during connector installation? - ANSWER Hand held.



Which connector comes pre-loaded with epoxy? - ANSWER Hot melt.



Why are LED sources the most common type used for testing purposes? - ANSWER Long life and low
cost.

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