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NEC Flashcards

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

Read the first 11 NEC flashcards as text

  1. What is the primary purpose of the National Electrical Code (NEC)?

    Answer: To ensure the safe installation of electrical wiring and equipment

    The NEC is designed to protect people and property from electrical hazards through proper installation standards.

  2. Which organization publishes the National Electrical Code (NEC)?

    Answer: National Fire Protection Association (NFPA)

    The NFPA is responsible for developing and publishing the NEC.

  3. How often is the National Electrical Code (NEC) updated?

    Answer: Every 3 years

    The NEC is revised and published every three years to reflect new technologies and safety practices.

  4. What does NEC Article 210 cover?

    Answer: Branch circuits

    Article 210 of the NEC focuses on the installation and specifications for branch circuits.

  5. Which of the following is required for all kitchen countertop outlets according to the NEC?

    Answer: Ground-Fault Circuit Interrupters (GFCIs)

    GFCIs are required to prevent electrical shock in areas where water is present, such as kitchen countertops.

  6. According to NEC, what is the minimum depth requirement for burying non-metallic electrical conduits in a residential setting?

    Answer: 12 inches

    The NEC specifies that non-metallic conduits should be buried at least 12 inches deep to protect them from damage.

  7. What is the purpose of a bonding jumper according to NEC Article 250?

    Answer: To connect non-current-carrying metal parts of electrical equipment to the grounding system

    Bonding jumpers are used to ensure electrical continuity and safe grounding of metal parts.

  8. According to NEC Article 110, what is the required working clearance in front of electrical panels?

    Answer: 36 inches

    The NEC requires a minimum working clearance of 36 inches in front of electrical panels for safe operation and maintenance.

  9. In the NEC, what does the term "ampacity" refer to?

    Answer: The current-carrying capacity of a conductor

    Ampacity is the maximum amount of electrical current a conductor or device can carry before sustaining immediate or progressive deterioration.

  10. What NEC article covers the installation of photovoltaic (solar) systems?

    Answer: Article 690

    Article 690 of the NEC provides guidelines and requirements for the installation of photovoltaic (solar) systems.

  11. What is the NEC requirement for receptacles installed in bathrooms?

    Answer: They must be protected by a GFCI

    To prevent electrical shock, the NEC requires that all bathroom receptacles be protected by ground-fault circuit interrupters (GFCIs).