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NEC Quiz: Article 314, Part 9

by Mark Lamendola

Quiz Questions

Code Quiz: Article 314, Part 9

Based on the 2011 NEC

Questions and answers written by Mark Lamendola, who has worked as a master electrician, electrical inspector, and design engineer. Mark is an IEEE Senior Member, and the Code article author for Since 1996, he has been writing National Electrical Code articles for electrical trade magazines and has an extensive portfolio of hundreds of NEC articles..

  1. Suppose a 2-inch EMT raceway contains three #2AWG THHN conductors, and it connects at a 90 degree angle to a pullbox. What's the minimum size for the pullbox?

  2. What requirement applies to all conductors in pull boxes or junction boxes having a dimension over 6ft?

  3. Can you put power distribution blocks in a pull box or junction box?

  4. Boxes and similar bodies must be installed so that the wiring can be made accessible without doing what?

  5. Can a metal cover be made of a different material from the box it goes with?

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