ETA-I Study Guide (Fiber Optics Installer Certification) (FOI) with 100% correct answers
An optical fiber works based off of a principle known as; correct answersTotal Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? correct answersRefraction. Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and _______________. correct answersInfrared. What are the three parts of a typical optical fiber? correct answersCore, Cladding, buffer Coating. (3 C's) A simple fiber optic system consists of what four components? correct answersTransmitter, receiver, fiber, and connector. Which optical fiber is most suited for very high speed and long distance applications? correct answersSingle-mode. The reduction of power as a signal passes through a system is called (Also known as signal loss); correct answersAttenuation. A fiber optic cable which has single-mode and multi-mode optical fibers is what kind of cable? correct answersHybrid. 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? correct answersMulti-mode graded-index.
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