True/False
Indicate whether the statement is true or false.
____ 1. Most outside plant installations are singlemode fiber.
____ 2. Splicing is very rare in premises networks.
____ 3. Fiber is used in long distance phone networks because it is much
cheaper than copper wire.
____ 4. Dangerous l...
____ 1. Most outside plant installations are singlemode fiber.
____ 2. Splicing is very rare in premises networks.
____ 3. Fiber is used in long distance phone networks because it is much
cheaper than copper wire.
____ 4. Dangerous light from fiber optic cables is bright and easily visible.
____ 5. Besides causing attenuation, dirt particles can cause scratches on
the polished fiber ends. - ANSWER True 1.
True2.
true 3.
False4.
true5.
6. 1. Outside plant cabling can be installed by ________.
A. Pulling in underground in conduit
B. Direct burial
C. Aerial suspension
D. All of the above - ANSWER D. All of the above
7. Underground cable generally includes a gel, powder or tape for
protection from _______.
A. Pulling friction
B. Lightning strikes
C. Moisture
D. Fiber abrasion - ANSWER C. Moisture
, 8. Armored cable is used in outside plant installations to ________.
A. Prevent rodent damage
B. Protect from dig-up damage
C. Increase pulling tension
D. Conduct lightning strikes - ANSWER A. Prevent rodent damage
9. Concatenation or the joining of two cables in a long outside plant
run is almost always done by ______.
A. Mechanical splicing
B. Fusion splicing
FRG-OSP Textbook Guide-Q.doc, 7/26/10, 8
C. Field installation of connectors
D. Splicing on pigtailled connectors - ANSWER B. Fusion splicing
10. Premise cables in LAN backbones often contain _______.
A. Only multimode fiber
B. Only singlemode fiber
C. Both multimode and singlemode fiber
D. Plastic optical fiber - ANSWER C. Both multimode and singlemode fiber
11. Premises cables must be rated for ______ to meet codes.
A. Pull strength
B. Bend radius
C. Weight in cable trays
D. Fire retardance - ANSWER D. Fire retardance
12. The protective gear every VDV installer must always wear is
_______.
, A. Eye protection
B. Plastic apron
C. Gloves
D. Shoe covers - ANSWER A. Eye protection
13. Information on the safety of chemicals used in fiber optics are
________.
A. Available from National Institutes of Health
B. In MSDS sheets supplied by manufacturers
C. Required to be in every installerʼs tool kit
D. Rarely useful - ANSWER B. In MSDS sheets supplied by manufacturers
14. Always keep ________ on connectors when not connected to
equipment or being tested.
A. Mating adapters
B. Strain relief boots
C. Sticky tape
D. Dust caps - ANSWER D. Dust caps
True/False
1. Optical fibers can transmit either voice, data or video and either
analog or digital signals.
2. Singlemode fiber has a smaller core than multimode fiber. - ANSWER 1. true
2. true
3. In an optical fiber, the light is transmitted through the ___________.
A. Core
B. Cladding
C. Buffer
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