Arizona Drivers Permit Practice Exam Guide

What must be removed from a metal telecommunications rack before attaching a grounding lug to ensure proper bonding?

The plastic cable managers The paint or powder coating at the attachment point The equipment mounted in the rack The leveling feet

Correct Answer:

The paint or powder coating at the attachment point

Explanation:

To achieve proper electrical conductivity for bonding, non-conductive coatings like paint must be scraped off to expose bare metal where the lug attaches.

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