9605433
Descripción
Test por Jeanie Fitzgerald, actualizado hace más de 1 año
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Creado por Jeanie Fitzgerald
hace casi 7 años
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Pregunta 1
Pregunta
Minimum bend radius for balanced twisted pair 4- pair during installation
Respuesta
-
twice the diameter of cable
-
four times diameter of cable
-
2 inches
-
4 inches
Pregunta 2
Pregunta
Minimum bend radius for Intrabuilding optical fiber during installation
Respuesta
-
10 times outside diameter
-
15 times outside diameter
-
20 times outside diameter
Pregunta 3
Pregunta
Minimum bend radius for Backbone Optical fiber at rest
Respuesta
-
10 times outside diameter
-
15 times outside diameter
-
20 times outside diameter
Pregunta 4
Pregunta
Minimum bend radius Interbuilding optical fiber during installation
Respuesta
-
10 times outside diameter
-
15 times outside diameter
-
20 times outside diameter
Pregunta 5
Pregunta
Before work begins, it is important to secure the area to ________________ access to unauthorized personnel only.
Respuesta
-
Allow
-
Permit
-
Restrict
Pregunta 6
Pregunta
What can be used to designate a work zone, area (select all that apply)
Respuesta
-
safety cones
-
yellow tape
-
folding A frame signs
Pregunta 7
Pregunta
What is the most common environmental hazards faced by the installer
Respuesta
-
Falls and trip hazards
-
chemical hazards
-
electrical wires or equipment
Pregunta 8
Pregunta
All firestopping solutions area a combination of fire stop materials, devices, packing materials that make up a listed system. Use only __________ __________ to properly restore the penetration of any fire or smoke rated barrier.
Respuesta
-
Approved methods
-
Approved materials
-
Listed assembies
Pregunta 9
Pregunta
As-built drawings are sometimes called record drawings to the general contractor or building owner.
Respuesta
- True
- False
Pregunta 10
Pregunta
What tasks should be done after the cable is pulled ( select all that apply )
Respuesta
-
Label all ICT components
-
Update the building floor plans
-
Perform housekeeping items
Pregunta 11
Pregunta
Allow no more than two 90 degree bends per 30 m = (100 ft) pull if in conduit
Respuesta
- True
- False
Pregunta 12
Pregunta
Controlling bend radius and friction can prevent damage to the cable. A ___ in. diameter smooth static pipe or ____ in.
roller will help to maintain proper bend radius limits.
Respuesta
-
2, 1
-
3, 2
-
4, 3
Pregunta 13
Pregunta
Service slack for ____________ ____________ shall reach the farthest corner of the TR via pathways and add the distance from floor to ceiling.
Respuesta
-
Copper backbone cables
-
Horizontal copper cables
-
Optical fiber cables
Pregunta 14
Pregunta
_____________ _____________ shall have enough slack to reach the farthest corner of the backboard via pathway in case new equipment is added later.
Respuesta
-
Copper backbone
-
Horizontal cables
-
Optical fiber
Pregunta 15
Pregunta
Optical fiber backbone cables shall require the same slack as optical fiber horizontal cables.
Respuesta
- True
- False
Pregunta 16
Pregunta
Balanced twisted pair horizontal cables shall have _______ of slack left in the work area to allow for ______
after termination. Cables shall not be stored in loops.
Respuesta
-
1 ft. - 1.6 ft.
-
1.6 ft. - 1 ft.
-
10 ft. - 3.3 ft.
Pregunta 17
Pregunta
Optical fiber cables shall have 1 m = (3.3 ft. ) of slack left in the work area to allow for termination.
Respuesta
- True
- False
Pregunta 18
Pregunta
A conduit 2 in. or less must maintain a bend radius of at least ____ times the internal conduit diameter.
Respuesta
-
6
-
8
-
10
Pregunta 19
Pregunta
A conduit greater than 2 in. should maintain a bend radius of at least ___ times the internal conduit diameter.
Respuesta
-
6
-
8
-
10
Pregunta 20
Pregunta
The maximum pull force for 4 pair 24 AWG cable is ___ lbf. the maximum pull force for two to four strand optical fiber is ___ lbf.
Respuesta
-
20, 40
-
25, 50
-
25, 75
Pregunta 21
Pregunta
It is acceptable to use structural steel ( red iron ) to directly support cables.
Respuesta
- True
- False
Pregunta 22
Pregunta
Pull string tensile strength ratings range from ______ to ______ lbf.
Respuesta
-
50 - 200
-
75- 200
-
75- 225
Pregunta 23
Pregunta
Only tested and accepted lengths of optical fiber are to be installed. What test instruments are typically used to test optical fiber on the reel? select all that apply
Respuesta
-
Visual fault locator (VFL)
-
Optical loss test set (OLTS)
-
Optical time domain reflectometer (OTDR)
Pregunta 24
Pregunta
Which test instrument requires access to both ends of the cable?
Respuesta
-
VFL
-
OTDR
-
OLTS
Pregunta 25
Pregunta
Where optical fiber cables will be used, consider placing three innerducts ( two 1.5 in. and one 1 in. )
inside each _______ conduit.
Respuesta
-
4 in.
-
6 in.
-
8 in.
Pregunta 26
Pregunta
Placing the optical fiber cables in a multi-weave wire mesh grip of appropriate size that has a swivel pulling eye is the preferred method for attaching this fiber to a pull rope
Respuesta
-
loose tube
-
tight buffer
-
ribbon
Pregunta 27
Pregunta
Preferred method for attaching tight buffer fiber to a pull rope
Respuesta
-
securing aramid yarn strength member
-
wire mesh grip
-
3 half hitches and a knot
Pregunta 28
Pregunta
How much optical fiber cable slack should be left at the at the work area
Respuesta
-
3.3 ft.
-
10 ft.
-
farthest point of work area
Pregunta 29
Pregunta
In air blown fiber, fluid drag is what carries the cable down the tube
Respuesta
- True
- False
Pregunta 30
Pregunta
Air blown fiber is only recommended for inside plant applications.
Respuesta
- True
- False
Pregunta 31
Pregunta
In air blown optical fiber installations, air pressure is typically between ______and ______ psi.
Respuesta
-
75- 200
-
150- 220
-
150- 250
Pregunta 32
Pregunta
This cable shall have enough slack to reach the farthest corner of the TR via pathways, add floor to ceiling and an additional 10 feet. (Select all that apply )
Respuesta
-
Horizontal Optical fiber
-
Backbone Optical fiber
-
Copper backbone
-
Horizontal Copper
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