CPCT Cabling Standards & Installation Practices 2 — Questions and Answers
Question 1: Which ANSI/TIA standard specifically addresses commercial building telecommunications cabling?
- ANSI/TIA-568 (Correct answer)
- ANSI/TIA-606
- ANSI/TIA-607
- ANSI/TIA-569
Correct answer: ANSI/TIA-568
ANSI/TIA-568 is the standard for commercial building telecommunications cabling, defining minimum requirements for cabling within a commercial environment.
Question 2: What is the maximum allowable pulling tension for a 4-pair Category 6 UTP cable during installation?
- 110 N (25 lbf) (Correct answer)
- 220 N (50 lbf)
- 440 N (100 lbf)
- 25 N (5.6 lbf)
Correct answer: 110 N (25 lbf)
ANSI/TIA-568 specifies a maximum pulling tension of 110 N (25 lbf) for 4-pair UTP cables to prevent stretching or damaging the conductors.
Question 3: According to TIA-568, what is the minimum bend radius for a 4-pair UTP horizontal cable during installation (under tension)?
- 4 times the cable diameter
- 8 times the cable diameter (Correct answer)
- 1 times the cable diameter
- 2 times the cable diameter
Correct answer: 8 times the cable diameter
Under tension during installation, TIA-568 requires a minimum bend radius of 8 times the cable outer diameter for 4-pair UTP horizontal cable.
Question 4: Which document provides administration standards for telecommunications infrastructure, including labeling and record-keeping?
- ANSI/TIA-569
- ANSI/TIA-606 (Correct answer)
- ANSI/TIA-568
- ANSI/TIA-758
Correct answer: ANSI/TIA-606
ANSI/TIA-606 is the Administration Standard for Telecommunications Infrastructure, covering labeling, records, and documentation.
Question 5: What does the term 'channel' refer to in structured cabling?
- Only the horizontal cable run
- The end-to-end transmission path including all connecting hardware and cords (Correct answer)
- The patch panel to switch connection only
- The cable from the telecommunications room to the work area outlet
Correct answer: The end-to-end transmission path including all connecting hardware and cords
A channel is the complete end-to-end transmission path including the horizontal cable, all connecting hardware, equipment cords, and patch cords.
Question 6: When installing cable in an air-handling plenum space, which cable jacket type is required?
- PVC (polyvinyl chloride)
- CMR (riser-rated)
- CMP (plenum-rated) (Correct answer)
- CM (general-purpose)
Correct answer: CMP (plenum-rated)
CMP (Communications Plenum) rated cable must be used in air-handling plenums because it produces minimal smoke and has low flame spread characteristics.
Question 7: What is the standard color for telecommunications grounding conductors per ANSI/TIA-607?
- Red
- Black
- Orange
- Green (Correct answer)
Correct answer: Green
ANSI/TIA-607 specifies green as the standard color for telecommunications bonding and grounding conductors.
CPCT Cabling Standards & Installation Practices 2
Which ANSI/TIA standard specifically addresses commercial building telecommunications cabling?