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NEC Quiz: Article 110

Quiz Questions

Code Quiz: Article 110

Based on the 2005 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 Codebookcity.com. He is a former editor of an electrical magazine were he edited Code articles.

  1. In what way must you use listed or labeled?

  2. What does the NEC mean by "neat and workmanlike manner?"

  3. What are you supposed to do with unused openings in enclosures?

  4. What are two rules that apply to mounting equipment?

  5. Can you mix aluminum and copper devices in a circuit?

  6. What is normally the limiting factor when choosing a conductor temperature rating?

  7. Does Article 110 apply to all circuits the same way?

  8. Does the NEC require three feet of working space in front of equipment?

  9. What are the three requirements for guarding of live parts?

  10. What is the rule regarding fixed ladders in vaults and tunnels?

 

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How the NEC is arranged

  1. The first four Chapters of the NEC apply to all installations.
  2. Article 90 precedes Chapter One, and establishes the authority of the NEC.
  3. Article 80 follows the body of the NEC; it exists as Annex H. It provides the requirements for administration.
  4. Chapters 5, 6, and 7 are the "special" chapters, covering special: occupancies, equipment, and conditions (in that order).
  5. Chapter 8 provides the requirements for communications systems.
  6. Chapter 9 provides tables.
  7. The appendices provide mostly reference information.
  8. Appendix D contains examples that every NEC user should study.

 

 

 

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