Electrician's Licensing Practice Exam

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Which NEC articles outline the installation requirements for RMC, IMC, and EMT?

  1. Articles 300, 310, and 320

  2. Articles 342, 344, and 358

  3. Articles 250, 240, and 230

  4. Articles 392, 400, and 410

The correct answer is: Articles 342, 344, and 358

The installation requirements for Rigid Metal Conduit (RMC), Intermediate Metal Conduit (IMC), and Electrical Metallic Tubing (EMT) are specifically outlined in Articles 342, 344, and 358 of the National Electrical Code (NEC). Article 342 details the requirements for RMC, which is a heavy-duty conduit suitable for use in both exposed and concealed locations, providing excellent protection for conductors. Article 344 addresses the standards for IMC, which offers a lighter alternative to RMC while still maintaining considerable strength and durability. Lastly, Article 358 covers the specifications for EMT, which is typically used in indoor applications and is known for its thin-walled, lightweight construction. These articles provide the necessary guidelines to ensure proper installation methods, materials, and safety standards for these types of conduits, making them essential for electricians in the field to understand and apply. The other options do not pertain to the requirements for these specific types of conduits, thus highlighting the importance of familiarity with the correct NEC articles.

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