Article 300
General Requirements
General Requirements
Wiring methods installed behind panels that allow access shall be _____ according to their applicable articles.
supported
300.4(C)
In general, where installed in raceways, conductors _____ AWG and larger shall be stranded.
8
310.3(C)
Where raceways or cables enter above the level of uninsulated live parts of cabinets, cutout boxes, and meter socket enclosures in a wet location, a(an) _____ shall be used.
fitting listed for wet locations
312.2
Where a box is provided with _____ or more securely installed barriers, the volume shall be apportioned to each of the resulting spaces; each barrier, if not marked with its volume, shall be considered to take up 1/2 cu in. if metal, and 1 cu in. if nonmetallic.
one
314.16(A)
The use, installation, and construction specifications of nonmetallic-sheathed cable are covered within Article _____.
334
334.1
Raceways, cable armors, and cable sheaths shall be _____ between cabinets, boxes, fittings, or other enclosures or outlets.
continuous
300.12
In general, the minimum size conductor permitted for use in parallel installations is _____.
1/0 AWG
310.10(G)(1)
Each cable entering a cutout box _____.
shall be secured to the cutout box
312.5(C)
Conductors, splices, or terminations in a handhole enclosure shall be listed as suitable for _____.
wet locations
314.30(C)
Type NM cable on a wall of an unfinished basement installed in a listed raceway shall have a _____ installed at the point where the cable enters the raceway.
suitable insulating bushing or adapter
334.15(C)
What is the minimum cover requirement for Type UF cable supplying power to a 120V, 15A GFCI-protected circuit outdoors under a driveway of a one-family dwelling?
12 in.
300.5(A) and Table 300.5 Column 4
The minimum size copper conductor permitted for voltage ratings up to 2,000V shall be _____ AWG.
14
310.3(A)
Cabinets, cutout boxes, and meter socket enclosures installed in wet locations shall be _____.
weatherproof
312.2
Equipment grounding conductor(s), and not more than _____ fixture wires smaller than 14 AWG shall be permitted to be omitted from the calculations where they enter the box from a domed luminaire or similar canopy and terminate within that box.
four
314.16(B)(1) Ex
Type _____ cable is a factory assembly that encloses two or more insulated conductors within a nonmetallic jacket.
NM
334.2 Nonmetallic-Sheathed Cable
All conductors of the same circuit shall be _____, unless otherwise specifically permitted in the Code.
in the same raceway or cable or be in close proximity in the same trench
300.5(I) and 300.3(B)
In a 3-wire circuit consisting of two phase conductors and the neutral conductor of a 4-wire, three-phase, _____ connected system, the common conductor is a current-carrying conductor and subject to the adjustment provisions of 310.15(C)(1).
wye
310.15(E)(2)
In walls constructed of wood or other _____ material, electrical cabinets shall be flush with the finished surface or project therefrom.
combustible
312.3
The total volume occupied by two internal cable clamps, six 12 AWG conductors, and a single-pole switch is _____ cu in.
20.25
314.16(A), Table 314.16(B), and 314.16(B)(1) through (4)
Type NM cables shall not be used in one- and two-family dwellings exceeding three floors above grade.
True or False?
False
334.10(1)
Where raceways contain 4 AWG or larger insulated circuit conductors entering a cabinet, box, enclosure, or raceway, the conductors shall be protected by _____.
an identified fitting that provides a smooth rounded insulating surface, a listed metal fitting that has smooth rounded edges, or threaded hubs that provide a smooth rounded or flared entry
300.4(G)(1),(2), and (4)
The ampacity adjustment factors of Table 310.15(C)(1)) do not apply to Type AC or Type MC cable without an overall outer jacket, if which of the following condition(s) is(are) met.
Each cable has not more than three current-carrying conductors, The conductors are 12 AWG copper, No more than 20 current-carrying conductors are installed without maintaining spacing
310.15(C)(1)(d)(1),(2),(3), and (4)
Cabinets, cutout boxes, and meter socket enclosures can be used for conductors feeding through, spliced, or tapping off to other enclosures, switches, or overcurrent devices where _____.
the total area of the conductors at any cross section does not exceed 40 percent of the cross-sectional area of that space, the total area of conductors, splices, and taps installed at any cross section does not exceed 75 percent of the cross-sectional area of that space, a warning label on the enclosure identifies the closest disconnecting means for any feed-through conductors
312.8(A)(1), (2), and (3)
A surface extension can be made from the cover of a box where the cover is designed so it is unlikely to fall off or be removed if its securing means becomes loose. The wiring method shall be _____ for an approved length that permits removal of the cover and provides access to the box interior and arranged so that any grounding continuity is independent of the connection between the box and cover.
flexible
314.22 Ex
The radius of the curve of the inner edge of any bend during or after installation of Type NM cable, shall not be less than _____ times the diameter of the cable.
5
334.24