UTP Patch Cord Length and Bend Radius Quiz

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What is the maximum untwisting allowance recommended when building your own cables?

No untwisting allowed

1/2 inch for each wire pair (correct)

2 inches for each wire pair

1 inch for each wire pair

What is the minimum recommended distance required for low-voltage communication cables from any fluorescent lighting fixture?

2 inches

1 inch

4 inches

5 inches (correct)

What is the typical outside diameter range for twisted-pair cabling?

0.5 to 0.6 inch

0.1 to 0.2 inch

0.25 to 0.35 inch (correct)

0.4 to 0.5 inch

What is the height of a single rack unit?

1.75 inches Signup and view all the answers

What is the purpose of fire sleeves in fire-rated walls or ceilings?

To fill or seal apertures created by pipes or cables Signup and view all the answers

What is the main purpose of fire collars?

To maintain fire resistance levels around pipes and penetrations Signup and view all the answers

What is the primary function of fire covers in fire-rated suspended ceilings?

To expand internally and fill available space with a fire-resistant, highly insulating char Signup and view all the answers

What do fire sealants and gap fillers do when heated at high temperatures?

Expand to prevent the spread of fire and smoke Signup and view all the answers

What does Class 1 Administration address in infrastructure identifiers?

Telecommunications space (TS) identifier Signup and view all the answers

What is required in Class 2 Administration in addition to the identifiers in Class 1 Administration?

Building backbone cable identifier Signup and view all the answers

What is required in Class 3 Administration in addition to the identifiers in Class 2 Administration?

Building identifier Signup and view all the answers

What is required in Class 4 Administration in addition to the identifiers in Class 3 Administration?

Campus or site identifier Signup and view all the answers

What is the maximum length limitation for UTP patch cords in the telecommunications room?

6 m (20 ft.) Signup and view all the answers

What is the minimum bend radius for UTP cable?

4 times the cable diameter Signup and view all the answers

What is the maximum allowed force when pulling UTP cable?

25 lbf (pounds of force) Signup and view all the answers

What is the maximum length limitation for UTP patch cords in the main cross-connect?

20 m (66 ft.) Signup and view all the answers

What is the maximum length limitation for UTP patch cords in the work area?

3 m (10 ft.) Signup and view all the answers

What is the maximum length limitation for UTP patch cords in the intermediate cross-connect?

20 m (66 ft.) Signup and view all the answers

What happens if the cable is sharply bent, twisted, or kinked?

It can cause permanent damage to the cable's geometry and cause transmission failures Signup and view all the answers

What is the minimum bend radius for optical fiber cable?

10 times the diameter Signup and view all the answers

What is the maximum arc into which a cable can be looped before its data transmission is impaired?

Bend radius Signup and view all the answers

What is the recommendation for labeling termination points in an installation?

Label every termination point at both ends with a unique number for each network link Signup and view all the answers

What could exceeding the bend radius do to the cable?

Kink or crimp the copper, causing signal reflections Signup and view all the answers

What is the recommendation for pulling UTP cable?

Use low to moderate force Signup and view all the answers