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ETA-I Study Guide (Fiber Optics Installer Certification) (FOI)ACCURATE 100%
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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
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  • eta i study guide
  • eta i study guide fiber optics installer certific
  • an optical fiber works based off of a principle k

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ETA-I Study Guide (Fiber Optics Installer
Certification) (FOI)ACCURATE 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 must be established prior to measuring loss when using the light source and power meter? -
ANSWER A reference point or zero reference.



What are the three basic approaches to modal conditioning used to achieve or simulate EMD when
testing multimode fiber? - ANSWER Optical, long fiber, filtering approach.



The Fibrlok II mechanical splice will accommodate single-mode or multimode fibers that have what
diameter cladding? - ANSWER 125μm.



What is the insertion loss for the Fibrlok II mechanical splice? - ANSWER Less than .1 dB.



What is the safest and most efficient method of removing fiber buffer? - ANSWER Mechanical buffer
strippers.



The Fibrlok II mechanical splices are filled with what to maximize light transfer and reduce Fresnel
reflections? - ANSWER Index matching gel.



When applying a cable cleaner to remove water resistant compound, how should the technician work? -
ANSWER The jacket end toward the cable end.



Patch panels provide a central location for cross-connecting, monitoring, and _______________. -
ANSWER Testing.



When installing patch panels located in equipment rooms, how are they normally mounted? - ANSWER
Rack.

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