Topic 20, Outside Plant Flashcards
(24 cards)
What warning tape color has the Common Ground Alliance (CGA) adopted for telecommunications and CATV cables?
A. Orange
B. Yellow
C. White
D. Green
E. Red
A. Orange
Buildings larger than ________ must contain a dedicated room for the termination of entrance facilities.
A. 5529 square m (60,000 square ft)
B. 7389 square m (80,000 square ft)
C. 9300 square m (100,000 square ft)
D. 11,160 square m (120,000 square ft)
E. 13,300 square m (140,000 square ft)
C. 9300 square m (100,000 square ft)
What is the MINIMUM vertical separation between the top rail of a railroad track and telecommunications facilities placed beneath the track?
A. 508 mm (20 in)
B. 762 mm (30 in)
C. 1020 mm (40 in)
D. 1280 mm (50 in)
E. 1525 mm (60 in)
D. 1280 mm (50 in)
Which one of the following is NOT an advantage of direct-buried cable?
A. Is flexible for future reinforcements or changes
B. Has a low initial installation cost
C. Can easily bypass obstructions
D. Preserves the aesthetic appearance of buildings
A. Is flexible for future reinforcements or changes
What is the MINIMUM cover for underground conduit?
A. 152 mm (6 in)
B. 305 mm (12 in)
C. 457 mm (18 in)
D. 610 mm (24 in)
E. 762 mm (30 in)
D. 610 mm (24 in)
BICSI recommends that any trench ________ or more deep must be shored to prevent cave in.
A. 1.2 m (4 ft)
B. 1.5 m (5 ft)
C. 1.7 m (5.5 ft)
D. 1.83 m (6 ft)
E. 2.1 m (7 ft)
B. 1.5 m (5 ft)
Aerial entrances to small buildings should be limited to ________ cable pair or less.
A. 6
B. 12
C. 25
D. 50
E. 100
E. 100
The information technology system (ITS) designer should design conduits entering a building from ceiling height to terminate ________ below the finished ceiling.
A. 51 mm (2 in)
B. 100 mm (4 in)
C. 152 mm (6 in)
D. 203 mm (8 in)
E. 254 mm (10 in)
B. 100 mm (4 in)
Which one of the following is NOT an advantage of underground conduit?
A. Has a low initial installation cost
B. Preserves the aesthetic appearance of the premises
C. Adaptable for future placement or removal of facilities
D. Provides the security of additional physical cable protection
E. Is economical over a long life
A. Has a low initial installation cost
What is the MINIMUM number of outside building terminal pedestals required to serve a single story office, or office warehouse structure that has ten 18.3 m x 24 m (60 ft x 80 ft) units and the total building length is 183 m (600 ft)?
A. One
B. Two
C. Four
D. Six
E. Ten
B. Two
All entrance conduits should be equipped with a plastic or nylon line with a MINIMUM test rating of _________ pulling tension.
A. 22.7 kg (50 lbs)
B. 45.4 kg (100 lbs)
C. 68 kg (150 lbs)
D. 90 kg (200 lbs)
E. 113 kg (250 lbs)
D. 90 kg (200 lbs)
To reduce the chance of an accidental dig-up, plastic warning tape should be placed a
MINIMUM of _________ below grade, but high enough above cables to allow detection before cables are damaged.
A. 101 mm (4 in)
B. 203 mm (8 in)
C. 300 mm (12 in)
D. 381 mm (15 in)
E. 457 mm (18 in)
C. 300 mm (12 in)
The MAXIMUM span length for an aerial entrance, from the last pole to the building, must
NOT exceed:
A. 15.2 m (50 ft)
B. 30 m (100 ft)
C. 45.8 m (150 ft)
D. 61 m (200 ft)
E. 76 m (250 ft)
B. 30 m (100 ft)
The MOST common medium used to provide service to the access point (AP) is ________ cable.
A. Singlemode optical fiber
B. Multimode optical fiber
C. Unbalanced twisted pair
D. Balanced twisted pair
D. Balanced twisted pair
You are placing an entrance cable between two buildings connected by a conduit 205.3 m
(588 ft) in length. What would be the MAXIMUM length of unlisted OSP cable that could be used before you terminate the cable or transition it to a listed cable?
A. 185 m (607 ft)
B. 200 m (656 ft)
C. 209 m (686 ft)
D. 213 m (700 ft)
E. 216 m (708 ft)
C. 209 m (686 ft)
When a building is not on the property line, the building owner should provide a MINIMUM of ________ conduits from a point inside the building, to the property line or easement for entrance facilities.
A. Five
B. Four
C. Three
D. Two
D. Two
When selecting poles for aerial telecommunications facilities, which of the following is the class number for the strongest rated pole?
A. 10
B. 6
C. 4
D. 2
E. 00
E. 00
Vertical conduit masts (with approved service heads) are limited to drop-wire attachments of up to ________ lines.
A. 4
B. 6
C. 12
D. 25
A. 4
When installing underground entrances, no more than ________ 90-degree bends should be included between pulling points.
A. One
B. Two
C. Three
D. Four
B. Two
You have determined that your underground cable design requires three maintenance holes (MHs). One is 4.3 m (14 ft), one is 6 m (20 ft), and one is 6.7 m (22 ft) in length. How many MH covers are required to serve these MHs?
A. Three
B. Four
C. Six
D. Seven
E. Nine
D. Seven
What is the horizontal separation, in well tamped earth, required between power and direct buried telecommunications facilities sharing the same trench?
A. 152 mm (6 in)
B. 229 mm (9 in)
C. 300 mm (12 in)
D. 381 mm (15 in)
E. 457 mm (18 in)
C. 300 mm (12 in)
You have the responsibility of designing a railroad track crossing for an outside plant OSP cable. There are three separate railroad tracks to be crossed. The measurement between the center of the two outer tracks is 16 m (52 ft). Using the standard track width of 1435 mm (4 ft 8.5 in), what is the length of the rigid steel conduit required to facilitate the crossing?
A. 20 m (66 ft)
B. 25 m (82 ft)
C. 31 m (102 ft)
D. 35 m (115 ft)
E. 40 m (130 ft)
C. 31 m (102 ft)
The information technology system (ITS) designer should design conduits entering a building from below grade point to extend ________ above finished floor (AFF).
A. 51 mm (2 in)
B. 100 mm (4 in)
C. 152 mm (6 in)
D. 203 mm (8 in)
E. 254 mm (10 in)
B. 100 mm (4 in)
An outside plant (OSP) cable must be placed under a pipeline with two side by side pipe runs. The distance between the outside pipes is 6 m (20 ft). What is the length of the conduit required to facilitate the pipeline crossing?
A. 6 m (20 ft)
B. 7.6 m (25 ft)
C. 9 m (30 ft)
D. 10.7 m (35 ft)
E. 12 m (40 ft)
E. 12 m (40 ft)
