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NEC Quiz: Article 314, Part 4

by Mark Lamendola

Quiz Questions

Code Quiz: Article 314, Part 4

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. Boxes and conduit bodies shall be of sufficient size to provide what?

  2. In what case can the volume of the box, as calculated in 314.16(A), be less than the fill calculation as calculated in 314.16(B)?

  3. When calculating the volume of a box, can you count the space provided by plaster rings?

  4. If a standard box isn't marked with its volume, what volume should you use?

  5. What if a box isn't standard and it's not listed in Table 314.16(A)?

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