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NEC Code and Theory Flashcards

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

Read the first 7 NEC Code and Theory flashcards as text

  1. NEC 225.30 limits the number of branch circuits or feeders entering a building from an outside branch circuit or feeder to one, with specific exceptions. Which of the following is a permitted exception?

    Answer: Fire pumps requiring a dedicated supply

    NEC 225.30 Exception 4 allows additional supplies for fire pumps, emergency systems, legally required standby systems, and optional standby systems.

  2. Under NEC 517.13, patient care areas in health care facilities must have the equipment grounding conductor installed in what manner?

    Answer: In metallic raceways or using metal-clad cable providing an effective fault current path

    NEC 517.13(A) requires that wiring in patient care spaces be in a metal raceway or cable assembly that qualifies as an equipment grounding conductor.

  3. What is the maximum length permitted for a flexible cord used as a listed appliance connection under NEC 400.8, assuming no exception applies?

    Answer: Flexible cords are prohibited as permanent wiring in all cases

    NEC 400.8 prohibits flexible cords from being used as a substitute for permanent wiring; they are permitted only for specific listed uses such as pendants and appliance connections.

  4. According to NEC 210.8(A), GFCI protection is required for all 125-volt, single-phase, 15- and 20-ampere receptacles in dwelling unit bathrooms. This requirement applies to which locations additionally?

    Answer: Garages, outdoors, crawl spaces, unfinished basements, kitchens, boathouses, and laundry areas

    NEC 210.8(A) lists bathrooms, garages, outdoors, crawl spaces, unfinished basements, kitchens, boathouses, and laundry areas as locations requiring GFCI protection in dwelling units.

  5. NEC 334.10 permits Type NM cable (Romex) in which of the following structures?

    Answer: One- and two-family dwellings and multifamily dwellings up to and including three floors above grade

    NEC 334.10(A) permits NM cable in one- and two-family dwellings and multifamily dwellings that are not more than three floors above grade.

  6. Under NEC 110.26(A)(1), the minimum clear working space in front of electrical equipment operating at 120/240 volts to ground, with exposed live parts on one side and grounded parts on the other (Condition 2), is how many feet?

    Answer: 3.5 feet

    NEC Table 110.26(A)(1) specifies 3.5 feet of working clearance for Condition 2 at voltages of 151–600 volts; for 0–150 volts Condition 2 it is 3 feet.

  7. Which NEC section requires that service disconnecting means be located outside or inside nearest the point of entrance of service conductors, and be accessible?

    Answer: NEC 230.70(A)

    NEC 230.70(A) specifies that the service disconnecting means must be installed at a readily accessible location either outside or inside the building nearest the point of service entrance.