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NEC Quiz: Article 314, Part 7

by Mark Lamendola

Quiz Questions

Code Quiz: Article 314, Part 7

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. What characteristics must a box have, if you plan to use it for enclosing a flush device?

  2. When mounting a box that has a flush-type cover, what's the maximum setback from the finished surface?

  3. What's the maximum gap you can have around a box mounted flush in a noncombustible surface?

  4. How many boxes can you screw together to create an extension or deeper box?

  5. If the sole support for an enclosure is raceway, what are the limitations?

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