All communication cable types except which may be used in cable trays?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for the Low-Voltage Cabling Test. Study with flashcards and multiple-choice questions, each question comes with hints and detailed explanations. Ace your exam!

Multiple Choice

All communication cable types except which may be used in cable trays?

Explanation:
The key idea is that only cables with a listing for tray use may be run in cable trays. The CM designation is general-purpose communications cable; CMR is approved for vertical or riser runs; CMP is rated for plenum (air‑handling) spaces. Each of these has a listing that includes installation in cable trays, so they can be used in trays. CMX, however, is not listed for tray installation; it’s intended for other applications and environments, not cable trays. That’s why it’s the exception and cannot be used in cable trays.

The key idea is that only cables with a listing for tray use may be run in cable trays. The CM designation is general-purpose communications cable; CMR is approved for vertical or riser runs; CMP is rated for plenum (air‑handling) spaces. Each of these has a listing that includes installation in cable trays, so they can be used in trays. CMX, however, is not listed for tray installation; it’s intended for other applications and environments, not cable trays. That’s why it’s the exception and cannot be used in cable trays.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy