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Code Requirements Flashcards

7 cards from real F80 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. According to the NEC, what is the maximum voltage permitted between conductors for receptacles installed in dwelling unit bedrooms?

    Answer: 250 volts

    The NEC does not restrict receptacle voltage in bedrooms to 120 volts; standard 250-volt receptacles are permitted for appliances such as window air conditioners.

  2. Under NEC 300.14, at least how much free conductor length must be left at each outlet, junction, or switch point for splices or connections?

    Answer: 6 inches

    NEC 300.14 requires a minimum of 6 inches of free conductor length, measured from the point it emerges from the raceway or cable sheath.

  3. Per NEC 250.119, which color is reserved exclusively for equipment grounding conductors when conductors are 6 AWG or smaller?

    Answer: Green

    NEC 250.119 designates green or green with yellow stripes as the identification for equipment grounding conductors 6 AWG and smaller.

  4. What does the NEC require regarding arc-fault circuit interrupter (AFCI) protection in a newly constructed single-family dwelling?

    Answer: AFCI protection is required for all 120-volt, 15- and 20-ampere branch circuits in all rooms

    NEC 210.12(A) now requires combination-type AFCI protection for all 120-volt, 15- and 20-ampere branch circuits throughout dwelling units.

  5. Under NEC 230.70, where must the service disconnecting means be installed?

    Answer: At a readily accessible location either outside or inside nearest the point of entrance

    NEC 230.70(A)(1) requires the service disconnecting means to be installed at a readily accessible location either outside or inside the building, nearest the point of service entrance.

  6. According to NEC 410.10(D), luminaires installed in or over a bathtub or shower zone must be listed for what environment?

    Answer: Wet locations

    NEC 410.10(D) requires luminaires installed within the bathtub or shower zone to be listed for wet locations.

  7. Per NEC 210.52(C), how many small-appliance branch circuits must be provided for the kitchen receptacles in a dwelling unit?

    Answer: At least two 20-ampere circuits

    NEC 210.52(C)(1) requires a minimum of two 20-ampere small-appliance branch circuits to serve kitchen countertop receptacles.