DCI Pathways and Spaces 3

Question 1

What is the maximum number of 90-degree bends allowed in a single conduit run between pull points per NEC Article 358?

Accepted Answer

4

Answer

The NEC limits a single conduit run to a maximum of 360 degrees of bends (equivalent to four 90-degree bends) between pull points.

Question 2

Which TIA standard provides guidelines for telecommunications pathways and spaces in commercial buildings?

Accepted Answer

TIA-569

Answer

TIA-569 is the standard that addresses telecommunications pathways and spaces for commercial buildings.

Question 3

A sleeve is best described as:

Accepted Answer

An opening through a wall, floor, or ceiling for passing cables

Answer

A sleeve is a round opening through a wall, floor, or ceiling that allows cables or conduits to pass through and must be firestopped after installation.

Question 4

When installing a cable tray in an area accessible to the public, what is the minimum mounting height from the floor?

Accepted Answer

7 feet

Answer

Cable trays installed in areas accessible to the public must be mounted at a minimum height of 7 feet (2.1 m) to prevent contact and ensure safety.

Question 5

What is the primary purpose of a pull box in a conduit system?

Accepted Answer

To provide access for pulling and splicing cables

Answer

A pull box provides an access point in a conduit run for pulling cables through the system, especially on long runs or runs with multiple bends.

(DCI) Data Cabling Installer Practice Test

(DCI) Data Cabling Installer Practice Test

DCI Pathways and Spaces 3