Term 1 of 412
An alternative method for installing optical fiber cables, some coaxial cables, and some small
diameter balanced twisted-pair cables uses cable _____ equipment.
pulling
blowing
twisting
laying
,Term 2 of 412
Where sheeting or shoring is not required, the amount of required subsurface space is based on
______
the width of the conduit formation
+
the space needed for:
• Working.
• Backfill.
• Concrete encasing.
* lightweight, as compact as possible, and watertight.
* it must be properly supported, grounded, and tested for air leaks.
* Labels must also be affixed to all cables
entering the splice, indicating cable number and pair-counts.
• Vaults (vented and nonvented)
• Telecommunications MHs
• Ductbank trenches
• Splice pits
• Tunnels
• Building entrance facilities
• Drop ceilings
• Mechanical equipment rooms
• Motor control cabinets
• Greater bandwidth capability
• No signal degradation because of EMI
• Smaller pathway requirements
,Term 3 of 412
Depending on the method employed, trench width can range from _____ to ____ and up to _____ in
depth.
152 mm (6 in)
76 mm (2.99 in) to 610 mm (24 in)
2.3 m (7.5 ft)
1.83 m (6 ft)
30 kilonewton (kN [6744 pound-force (lbf)]).
Term 4 of 412
The following are generic applications of intrusion detection and alarm circuits:
* the distance between the telephone wires or cables and the ground.
* the distance in any direction between communication wires, cables, or attachments and
power conductors, cables, or attachments.
• Long-range perimeter/border low-lux video surveillance
• Short-range video surveillance
• Intrusion detection at perimeter lines
• Maintenance hole (MH) and handhole (HH) intrusion detection
difficult to place a value on unreported issues that require repairs as opposed to the cost of
a routine maintenance program
• A corner pole where overhead guys cannot be installed.
• Where terrain makes guying ineffective.
Term 5 of 412
As a rule of thumb, the diameter of a duct should be at least _______ the diameter of the cable
0.5 times
1.15 times
2 times
3 times
, Term 6 of 412
Lower or equal to ___ ohm ground is an NEC minimum resistance requirement for a single
electrode. It is not an indication that the value has an impact on system performance.
25
1.52 m (5 ft)
True
610 mm (24 in)
Term 7 of 412
Testing of most networks is a combination of _______ and _______ testing.
• River and stream crossings.
• Crossing valleys and gullies.
• Highway and road crossings.
* optical loss test set (OLTS)
* optical time domain reflectometer (OTDR)
- Type of utility (e.g., buried communications cable)
- Owner (e.g., XYZ Inc.)
- Contact number to call for locates
• Original methodology
• Power over Ethernet (PoE) OWB design
• Fiber-coupled OWB design
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