Exam (elaborations)
FOA CFOT Certification Exam v11 (100% correct answers)
- Course
- Institution
FOA CFOT Certification Exam v11 (100% correct answers)
[Show more]
Seller
Follow
Victorious23
Reviews received
Content preview
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? - -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? - -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 singlemode (smaller core size) fiber
size? - -9/125 micron
-Singlemode fiber has _____ bandwidth than multimode fiber. - -greater
-Most plastic optical fibers are _____. - -large core step-index
-When you strip singlemode 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 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? - -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
singlemode fiber? - -Yellow
-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
____. - -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
_____. - -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? - -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? - -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
-Factory terminations, such as used for making patchcords, generally use
what method of attaching the connector? - -Epoxy/polish
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 Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76799 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now