NEC Chapter 3: Cable Tray Installation Quiz…

Q: Which NEC Article covers cable trays?

Article 392 — Article 392 specifically addresses cable trays and their installation.

Q: Cable trays are permitted to support which of the following?

All of the above — Cable trays can support conductors, raceways, and certain equipment.

Q: What is the primary function of cable trays?

To provide a support system for cables — Cable trays primarily support and manage cables in an organized manner.

Q: When are cable trays required to be identified as suitable for the specific installation?

Always — Cable trays must always be identified for their intended use.

Q: What is a common type of cable tray?

All of the above — Ladder, solid bottom, and trough types are all commonly used cable trays.

Q: Cable trays shall be installed in accordance with the manufacturer's instructions, unless other rules apply, or they conflict with?

the NEC — Manufacturer's instructions must align with the NEC.

Q: Where are cable trays NOT permitted?

In concealed areas — Cable trays are often not permitted in concealed locations for accessibility.

Q: What is the primary purpose of grounding cable trays?

To provide a pathway for fault current — Grounding provides a path for fault currents to return to the source.

Q: How should cable tray systems be supported?

Any of the above, depending on design and conditions — Cable tray support depends on the specific installation requirements.

Q: What information should be on the cable tray label?

All of the above — Cable tray labels should include manufacturer and material information.

Question 1 of 10

Which NEC Article covers cable trays?

Article 392 specifically addresses cable trays and their installation.

Question 2 of 10

Cable trays are permitted to support which of the following?

Cable trays can support conductors, raceways, and certain equipment.

Question 3 of 10

What is the primary function of cable trays?

Cable trays primarily support and manage cables in an organized manner.

Question 4 of 10

When are cable trays required to be identified as suitable for the specific installation?

Cable trays must always be identified for their intended use.

Question 5 of 10

What is a common type of cable tray?

Ladder, solid bottom, and trough types are all commonly used cable trays.

Question 6 of 10

Cable trays shall be installed in accordance with the manufacturer's instructions, unless other rules apply, or they conflict with?

Manufacturer's instructions must align with the NEC.

Question 7 of 10

Where are cable trays NOT permitted?

Cable trays are often not permitted in concealed locations for accessibility.

Question 8 of 10

What is the primary purpose of grounding cable trays?

Grounding provides a path for fault currents to return to the source.

Question 9 of 10

How should cable tray systems be supported?

Cable tray support depends on the specific installation requirements.

Question 10 of 10

What information should be on the cable tray label?

Cable tray labels should include manufacturer and material information.

NEC Chapter 3: Cable Tray Installation Quiz