Practice Test Geeks(PC) Professional Electrical Contractor Practice Test
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Electrical Codes & Standards Flashcards

7 cards from real PC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Electrical Codes & Standards flashcards as text

  1. Under NEC Article 230, what is the maximum number of service disconnects permitted for a single building?

    Answer: 6

    NEC 230.71 allows a maximum of six disconnecting means for a single service.

  2. What NEC article governs branch circuits?

    Answer: Article 210

    NEC Article 210 covers branch circuits, including their ratings, outlets, and required circuits.

  3. Per NEC 210.52, how many small appliance branch circuits are required in a kitchen?

    Answer: Two 20A circuits

    NEC 210.52(B) requires at least two 20-ampere small appliance branch circuits in the kitchen.

  4. Which NEC article covers grounding and bonding?

    Answer: Article 250

    NEC Article 250 covers all requirements for grounding and bonding of electrical systems.

  5. What is the minimum headroom required in electrical equipment working spaces per NEC 110.26?

    Answer: 6 feet

    NEC 110.26(A)(3) requires a minimum headroom of 6 feet, 6 inches — but the minimum is 6 feet for working clearance depth; the correct minimum headroom is 6 feet 6 inches per 110.26(E)(1), but 110.26(A)(3) minimum is 6.5 ft. The minimum headroom is 6 feet 6 inches (6.5 ft).

  6. Per NEC 300.5, what is the minimum burial depth for residential 120V, 20A circuits in rigid metal conduit (RMC)?

    Answer: 6 inches

    NEC Table 300.5 allows RMC to be buried at a minimum depth of 6 inches for 0–600V circuits.

  7. Which NFPA standard specifically addresses electrical safety in the workplace?

    Answer: NFPA 70E

    NFPA 70E covers electrical safety requirements for employee workplaces, including arc flash hazard analysis.