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NEC Index Keyword Drills for the California Electrician Exam

The index is the fastest tool in the book, but only if you search the right word. The exam asks in plain language; the index files the answer under a code term. Train the translation.

Last reviewed June 2026

What to train

  • Translating job-site words into index terms before you open the index.
  • A short list of the synonyms the exam leans on most.
  • Jumping straight to the article number the index gives, not skimming nearby pages.
  • Using the article's own subsection list to land the exact rule.

What slows candidates down

  • Searching for the job-site word and finding nothing because it is filed under a synonym.
  • Giving up on the index and flipping page by page.
  • Landing on the right article but reading from the top instead of the subsection.
  • Not knowing the index lists definitions under the defined term, not the plain word.

Mini drill: find it fast

Close the book. Read each cue, say the index keyword you would search and the article out loud, then check yourself. If it takes more than fifteen seconds, that one goes on your tab list.

  • Hot tub bonding requirement

    Pools, spas, and hot tubs share Article 680.

    Keyword: Spas and hot tubs, not 'hot tub' alone

    Article 680

  • Where a panel may be installed

    Location and overcurrent rules are under Panelboards.

    Keyword: Panelboards, not 'panel'

    408.36 and 240.24

  • Romex support spacing

    NM cable support and securing distances.

    Keyword: Nonmetallic-sheathed cable, not 'Romex'

    334.30

  • Wire-nut splice requirement

    Splice and connector requirements.

    Keyword: Connectors, pressure, not 'wire nut'

    110.14(B)

  • Outlet box mounting in the wall

    An outlet is a point; the box rules live under Boxes.

    Keyword: Boxes, not 'outlet'

    314.20 and 314.23

Train this against the clock

Codebook speed timerTime your lookupsWhat you can bringProvided referencesFree diagnostic15 questions, no signup
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If you failed it onceThe 60-day wait is the work window. Find your two weakest domains and attack those, not a re-read of what you already knew.Build a retake planIf you’re still checking the rulesWhat’s provided at the test center, the 8,000 hours, C-10 vs General Electrician. Get the current facts before you study the wrong thing.Check the requirementsIf codebook speed is the weak spotReferences are provided, so the exam rewards whoever finds the rule fastest. Train the lookup, not just the rule.Train codebook speed
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