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? correct answers True
A fiber optic power meter measures absolute power in dBM (dB referenced to 1 mw) and, when used with a light so...
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
FOA CFOT Certification Exam v11 (100% correct answers)
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? correct answers 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? correct
answers True
When we say 62.5/125 fiber, what does "62.5" mean? correct answers core size, the diameter in
microns
When we say 50/125 fiber, what does "125" mean? correct answers 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 _____. correct answers 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. correct answers Higher
Which of the following represents a singlemode (smaller core size) fiber size? correct answers
9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. correct answers greater
Most plastic optical fibers are _____. correct answers large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are removing the
____. correct answers Primary buffer coating
The proper method of pulling optical fiber cables is to attach the pull wire or tape to the ____ of
the cable. correct answers Strength members
According to the references, hybrid cables are cables that contain ____. correct answers 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? correct answers ribbon
According to the references, composite cables refer to cables that contain ____> correct answers
both optical fibers and copper conductors
Which optical fiber cables must be grounded? correct answers all cables that contain metallic
elements
, Fiber optic cable for use inside a building must _______. correct answers 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 _____.
correct answers Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode fiber?
correct answers Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized 50/125
OM3 or OM4 fiber? correct answers Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____. correct
answers Any or all of these as appropriate (Pull form the center to the ends, Use a breakaway
swivel or monitor tension, Lubricate the cable)
In a loose tube cable, a gel or absorbent tape or powder is normally used _____. correct answers
To prevent water from entering the cable
Which type of cable is best suited for indoor installation when fibers ar to be directly terminated
inside a patch panel with adhesive/polish or prepolished splice connectors? correct answers tight
buffer distribution cable
What type of cable may require installation of a breakout kit (also called a furcation or fan out
kit) for termination? correct answers loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally specified as ______.
correct answers 20 times the cable diameter
Cable ties used on fiber optic cables ____. correct answers Can harm cables if too tight, so they
should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____. correct answers 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. correct answers Reflectance
Factory terminations, such as used for making patchcords, generally use what method of
attaching the connector? correct answers Epoxy/polish
According to the references, the connector in the following list with the best or lowest
reflectance would be the ____. correct answers SC-APC (Angled Polished Connector)
Splices are most often used for _____. correct answers A permanent joint between two fibers
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller FullyFocus. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
