Practice Exam 3 Flashcards
Which termination kit has a single connector on one end and loose fiber on the other; and is designed to patch a long single mode fiber run
Pigtail
What can be used to greatly reduce Fresnel reflection that maintains nearly the same refractive index of the optical fibers
Index Matching Gel
Which technique is dependent on the quality of the cleaving tool for optimum termination performance
NPC- No polish connector
What consideration should be accounted for regarding cable length when installing fiber optic cable
Slack
Specifying fiber type is always required when using cable management products
True
When testing mutlimode Local Area Networks what teo types of electro-optical light sources can be used in Visual Fault Locators
LED
VCSEL
What instrument is used to identify dirty, damaged, or poorly finished connectors
Inspection scope
How many feet can an unlisted cable extend inside a structure, according to the NEC article 770, before it must transition to listed cables
50ft
Any electrical conductive materials that may become energized, like metal armor or metallic strength members of an optical fiber cable, shall be bonded and grounded at the point of entrance into a building is found in which article of the NEC
Article 250
What does NEC stand for
National Electric Code
When trying to determine the bend radius of a cable that is not known or marked, what is the generally accepted rule to calculate the bend radius
20 times the cable OD
What class of laser has the highest power and the most health hazards associated with it
Class 4
Are minor defects allowed anywhere on the end face of a connector? If so, where would those minor defects be allowed
Cladding
If you are looking at A cross-section of a fiber optic cable which ring is identified as the core
The center ring
What is the acronym for LASER
Light Amplified by Stimulated Emissions of Radiation
What’s does the “C” and “R” stand for in OFCR
Conductive Riser
There are the three methods of fiber fabrication when making a reform, name two
OVD- Outside Vapor Deposition
VAD- Vapor Axial Deposition
What is the diameter for the acrylate coating on a European standard core(50um)
250 µm
Describe the three types of dispersion
Mode, Material, waveguide
What component of a light source is capable of converting light into electrical energy
Photodiode
What is the term for the layer of the fiber strand that is used to restrict the light turned to propagate and ensure Total Internal Reflection
Cladding
Which class of lasers is hazardous to the eye, has intermediate power, and is used in spectrometry, stereolithography, and entertainment light shows
Class 3b
Name three of the six advantages of fiber optics cables have over copper cables
Small Size
Light Weight
Low Loss
What does ETA stand for
Electronics Technicians Association
Name 3 ways Fiber Optics is used today
Internet
Security Systems
Cellular Systems
