QUESTIONS WITH DETAILED VERIFIED ANSWERS ALREADY GRADED A+
What type of cable may require installation of a breakout kit (also called a
furcation or fan out kit) for termination?
loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally
specified as ______.
20 times the cable diameter
Cable ties used on fiber optic cables ____.
Can harm cables if too tight, so they should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____.
low loss, minimal reflectance and high mechanical strength
To reduce _____ as well as loss, the end of a connector ferrule is polished to a PC
(physical contact) finish.
Reflectance
A fiber optic inspection microscope can increase the danger of high-powered
light sources by focusing the light coming out of a fiber into your eye. True or
False?
True
Most plastic optical fibers are _____.
large core step-index
When you strip single mode or graded index multimode mode glass fiber, you are
removing the ____.
Primary buffer coating
The proper method of pulling optical fiber cables is to attach the pull wire or tape
to the ____ of the cable.
Strength members
According to the references, hybrid cables are cables that contain ____.
Both Singel mode and multimode optical fibers
What type of fiber cable design allows for large numbers of fibers with ultra-high
density, small size (diameter) and lower cost?
Ribbon
According to the references, composite cables refer to cables that contain ____>
both optical fibers and copper conductors
, Which optical fiber cables must be grounded?
all cables that contain metallic elements
Fiber optic cable for use inside a building must _______.
Be rated to meet the requirements of local building and fire codes
Optical fiber cable with a orange colored jacket generally indicates the cable
contains _____.
Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate single
mode fiber?
Yellow
A fiber optic power meter measures absolute power in dBM (dB referenced to 1
mw) and, when used with a light source, can measure insertion loss expressed in
db. True or False?
True
When we say 62.5/125 fiber, what does "62.5" mean?
core size, the diameter in microns
When we say 50/125 fiber, what does "125" mean?
cladding size, the diameter in microns
OM3 and OM4 multimode fiber with a 50/125-micron core are now a popular
option in premises cabling systems because they _____.
Are "laser optimized" which gives more distance capability with gigabit networks using
laser sources
In-multimode fiber, the attenuation (reduction in optical power) of the fiber is
_____ at 850 nm than at 1300 nm.
Higher
Which of the following represents a single mode (smaller core size) fiber size?
9/125 micron
Single mode fiber has _____ bandwidth than multimode fiber.
Greater
Premises cable jackets are usually color-coded in what color to indicate laser-
optimized 50/125 OM3 or OM4 fiber?
Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____.