Red USA marking indicates what?

Prepare for the CWEA Electrical/Instrumentation (E/I) Grade 1 Test. Use flashcards and multiple-choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Red USA marking indicates what?

Explanation:
Red marks are used to show underground electric power lines, cables, or conduit. This color-coding system helps workers know where electrical infrastructure lies so they can avoid digging there or take proper safety precautions. It’s part of a nationwide standard for marking buried utilities (APWA color codes). For context, blue marks indicate water, green marks sewer, yellow marks gas/oil/steam, and orange marks telecom or communications lines, which helps distinguish different types of buried services at a job site.

Red marks are used to show underground electric power lines, cables, or conduit. This color-coding system helps workers know where electrical infrastructure lies so they can avoid digging there or take proper safety precautions. It’s part of a nationwide standard for marking buried utilities (APWA color codes). For context, blue marks indicate water, green marks sewer, yellow marks gas/oil/steam, and orange marks telecom or communications lines, which helps distinguish different types of buried services at a job site.

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