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? - ANSWER True
A fiber optic power meter measures absolute power in dBM (dB referenced to 1 mw) and, when used with a light source, c...
FOA CFOT Certification Exam v11|| 100
QUESTIONS|| CORRECT ANSWERS||
VERIFIED|| LATEST UPDATE 2024||
100% ACCURATE
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? - ANSWER True
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? - ANSWER True
When we say 62.5/125 fiber, what does "62.5" mean? - ANSWER core size, the diameter in microns
When we say 50/125 fiber, what does "125" mean? - ANSWER 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 _____. - ANSWER 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. - ANSWER Higher
Which of the following represents a singlemode (smaller core size) fiber size? - ANSWER 9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. - ANSWER greater
Most plastic optical fibers are _____. - ANSWER large core step-index
, When you strip singlemode or graded index multimode mode glass fiber, you are removing the ____. -
ANSWER Primary buffer coating
The proper method of pulling optical fiber cables is to attach the pull wire or tape to the ____ of the
cable. - ANSWER Strength members
According to the references, hybrid cables are cables that contain ____. - ANSWER Both singelmode 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? - ANSWER ribbon
According to the references, composite cables refer to cables that contain ____> - ANSWER both optical
fibers and copper conductors
Which optical fiber cables must be grounded? - ANSWER all cables that contain metallic elements
Fiber optic cable for use inside a building must _______. - ANSWER 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 _____. - ANSWER
Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode fiber? - ANSWER
Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized 50/125 OM3 or
OM4 fiber? - ANSWER Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____. - ANSWER Any or all
of these as appropriate (Pull form the center to the ends, Use a breakaway swivel or monitor tension,
Lubricate the cable)
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