Fiber optic Test Questions with All Correct Answers
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Course
Fiber optic
Institution
Fiber Optic
Fiber optic Test Questions with All Correct Answers
What form of dispersion affect bandwidth in both multimode and singlemode fiber - Answer- Chromatic dispersion
Most plastic optical fiber are - Answer- Large core step-index
When you strip singlemode or graded index multimode mode glass fi...
Fiber optic Test Questions with All
Correct Answers
What form of dispersion affect bandwidth in both multimode and singlemode fiber -
Answer- Chromatic dispersion
Most plastic optical fiber 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 outermost layer of protection for an optic fiber cable is - Answer- The jacket
The proper method of pulling optical fiber is to attach the pull wire or tape to the -
Answer- Strength members
According to the text HYBRIDcables refer to cable that contain - Answer- Both
singlemode and multimode optical fibers
What type of fiber cable design allows for large number of fibers with ultra high density
low cost small size diameters? - Answer- Ribbon
When flexibility and ease of termination are priory the type of cable best suited is -
Answer- Tight buffer
What standard covers flammability requirements of fiber optic cables for installation in
premises application - Answer- NEC 770.50
According to the text Composite cable refer to cable that contain - Answer- Both optical
fiber and copper must be grounded
Which optical fiber cable must be grounded - Answer- All optical cable that contain
metal
Which NEC rated cable can be used in air handling space of building - Answer-
OFNP(US)
Optical fiber cable with a orange colored jacket generally indicates the cable contain -
Answer- Multimode fiber
, Premises cable jacket are usually color-code in what color to indicate singlemode fiber?
- Answer- yellow
The minimum bend radius for cable while pulling under tension during installation is -
Answer- 20 times the cable diameter
When pulling long length of cable in conduit or inner duct you may need to - Answer-
Any or all of these as appropriate
Use a breakaway swivel or monitor tension
Lubrica the cable
Pull from the center to the end.
In a loose tube buffer cable gel or absorbent tape is normally uesd - Answer- To prevent
water from entering the cable
What type of cable may require installation of breakout kit also called a function or fan
out kit for termination - Answer- Loose tube (loose buffer) cable
A fiber optic inspector microscope can increase the danger of high powerd light source
by focusing the light out of a fiber into your eyes. - Answer- True
A fiber optic power meter measures absolute power in dBm (dB reference to 1 mw) and
when a light source measures insertions loss in dB. - Answer- True
Confining light in a material by surrounding it by another material with lower refractive
index is the phenomenon of - Answer- Total internal reflection
The largest cause of attenuation in am optical fiber is - Answer- Scattering
When we say 62.5/125 fiber what does "62.5" means? - Answer- Core size, diameter in
microns
When we say 50/125 fiber what does "125" mean? - Answer- Cladding size the
diameter in microns
An older multimode fiber design with a 50/125 micron core is now option in premises
cabling system because it - Answer- Has a higher bandwidth which gives more distance
capability with gigabit network
In multimode fiber the attenuation of the fiber is __________ at 850 nm that's 1300 nm -
Answer- Higher
Which of the following represent a singlemode fiber size ? - Answer- 9/125
Singlemode fiber has ______ bandwidth in both multimode and singlemode fiber -
Answer- Greater
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