Don't Get Your Wires Crossed
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Test your wiring knowledge in this month's quiz. Do you know the proper procedures when it comes to handling wires and cables?
- 1.When bending 8 conductor / 4 pair UTP cable the bend should not be less than ____ times the cable ____.
- A.
4 / radius
- B.
8 / diameter
- C.
2 / circumference
- D.
4 / diameter
- E.
Makes no difference on UTP cable
- 2.Nonconductive optical fiber cables shall be permitted to occupy the same cabinet, panel or similar enclosure of Class 1 circuits.
- A.
True
- B.
False
- 3.When referring to cable terminations, the “RJ” designation means _____.
- A.
Restricted Jack
- B.
Registered Junction
- C.
Registered Jack
- D.
Revised Joint
- 4.____ is a connector for high-speed Category 7 (S/FTP) cabling systems.
- A.
GG45
- B.
RJx45
- C.
BP101
- D.
RJ11
- 5.According to the NEC, wires are measured in AWG and ____.
- A.
Mils
- B.
Kmils
- C.
Kcmils
- D.
Inches
- 6.On an 8-pin jack, which colors are used for pair 2?
- A.
Blue / White-Blue
- B.
White-Brown / Brown
- C.
White-Orange / Orange
- D.
White-Green / Green
- 7.Communications wires and cables shall be separated at least ____ from electric light or power conductors not in a raceway.
- A.
2 inches
- B.
4 inches
- C.
3 feet
- D.
7 meters
- 8.According to Table C.1 of the NEC, the maximum number of conductors of type THHN, with a size of 12 AWG, permitted to be in a ¾ inch EMT conduit is _____.
- A.
4
- B.
7
- C.
16
- D.
24
- 9.The "skin effect is _____.
- A.
The “peeling” back of the outer layer of coax cable due to extreme temperatures
- B.
The tendency of alternating current, as its frequency increases, to travel only on the surface of a conductor
- C.
The irritation caused by handling untreated coaxial cable much like that of fiberglass insulation
- D.
The method by which the skin of a coaxial cable is properly “stripped” and the center conductor is exposed
- 10.A ____ has the following characteristics: 125-micron cladding diameter and increased bandwidth with a smaller size.
- A.
Single-mode optical fiber
- B.
Multimode 62.5-micron fiber
- C.
Multimode 50-micron fiber
- D.
Glass-encased optical fiber
- 11.Which is a true statement?
- A.
CMX cable shall be permitted to be used in place of CATVX.
- B.
CATV cable shall be permitted to be used in place of CMP.
- C.
CMG cable shall be permitted to be used in place of CMP.
- D.
FPLR cable shall be permitted to be used in place of CMP.
- 12.A fiber optic ____ connector has a 2.5mm ferrule tip with screw-on mechanism. It is keyed to prevent tip rotation and damage to the mated fiber. It is typically used for single-mode applications.
- A.
ST
- B.
FC
- C.
SC
- D.
LC
- 13.The maximum spacing between supports permitted by the NEC for Rigid Polyvinyl Chlorid Conduit, trade size 1¼ - 2, is ____.
- A.
12 inches
- B.
3 feet
- C.
5 feet
- D.
7 feet
- 14.The requirements of Section 300.22(A) of the 2014 NEC do not apply to conductive optical fiber cables in ducts used for dust, loose stock or vapor removal.
- A.
True
- B.
False
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