Construction Codebooks and Estimating Guides

NEC Quiz: Article 250, Part Six

Quiz Questions

Code Quiz: Article 250, Part 6

Based on the 2008 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. Which conductor do you ground on a single-phase, three-wire system?
     

  2. Which conductor do you ground on a single-phase, three-wire system?
     

  3. Can you use just a screw as a main bonding jumper?
     

  4. What table do you use to size a main bonding jumper?
     

  5. What table do you use to size a system bonding jumper?

 

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