Article 314

Listed

Floor boxes _____ specifically for the application shall be used for receptacles located in the floor.

rigidly

When mounting an enclosure in a finished surface, the enclosure shall be _____ secured to the surface by clamps, anchors, or fittings identified for the application.

Approved

_____ drainage openings not smaller than 1/8 in. and not larger than 1/4 in. in diameter shall be permitted to be installed in the field in boxes or conduit bodies listed for use in damp or wet locations.

All of these

_____ shall be installed so that the wiring contained in them can be rendered accessible without removing any part of the building or structure or, in underground circuits, without excavating sidewalks, paving, or earth.

flexible

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.

6

A vertically mounted luminaire weighing not more than _____ lb can be supported to a device box or plaster ring with no fewer than two No. 6 or larger screws.

50

Boxes used at luminaire or lamp-holder outlets in a ceiling shall be designed so that a luminaire or lamp-holder can be attached and the boxes shall be required to support a luminaire weighing a minimum of _____ lb.

Wet Location

Conductors, splices, or terminations in a hand-hole enclosure shall be listed as suitable for _____.

False

Conduit bodies containing conductors larger than 6 AWG shall have a cross-sectional area at least twice that of the largest conduit to which they can be attached.

True

Conduit bodies that are durably and legibly marked by the manufacturer with their volume can contain splices, taps, or devices.

Double

Each strap containing one or more devices shall count as a _____ volume allowance in accordance with Table 314.16(B), based on the largest conductor connected to a device(s) or equipment supported by the strap.

2

Enclosures not over 100 cu in. having threaded entries and not containing a device shall be considered to be adequately supported where _____ or more conduits are threaded wrench- tight into the enclosure and each conduit is secured within 3 ft. of the enclosure.

False

Exposed live parts on the power distribution block are allowed when the junction box cover is removed.

listed

Floor boxes _____ specifically for the application shall be used for receptacles located in the floor.

all loads likely to be imposed on them

Hand-hole enclosures shall be designed and installed to withstand _____.

any of these

In completed installations, each outlet box shall have a _____.

A or b

In installations within walls or ceilings constructed of wood or other combustible surface material, boxes, plaster rings, extension rings, or listed extenders shall _____.

a or b

In installations within walls or ceilings constructed of wood or other combustible surface material, boxes, plaster rings, extension rings, or listed extenders shall _____.

eight

In straight pulls, the length of the box or conduit body shall not be less than _____ times the trade size of the largest raceway.

b or c

Listed boxes and hand-hole enclosures designed for underground installation can be directly buried when covered by _____, if their location is effectively identified and accessible.

a and b

Metal boxes shall be _____ in accordance with Article 250.

1/8

Noncombustible surfaces that are broken or incomplete around boxes employing a flush-type cover or faceplate shall be repaired so there will be no gaps or open spaces larger than _____ in. at the edge of the box.

all of these

Nonmetallic boxes can be used with _____.

all of these

Power distribution blocks shall be permitted in pull and junction boxes over 100 cu in. when _____.

True

Power distribution blocks shall be permitted in pull and junction boxes over 100 cu in. when they comply with the provisions of 314.28(E)(1) through (5).

any of these

Short-radius conduit bodies such as capped elbows and service- entrance elbows that enclose conductors 6 AWG or smaller shall not contain _____.

True

Surface extensions shall be made by mounting and mechanically securing an extension ring over the box, unless otherwise permitted.

rigidly and securely fastened in place

Surface-mounted outlet boxes shall be _____.

18

Two intermediate metal or rigid metal conduits threaded wrench- tight into an enclosure can be used to support an outlet box containing devices or luminaires, if each raceway is supported within _____ in. of the box.

mechanically connected to the hand-hole enclosure

Underground raceways and cable assemblies entering a hand- hole enclosure shall extend into the enclosure, but they are not required to be _____.

No. 6

Utilization equipment weighing not more than 6 lb can be supported to any box or plaster ring secured to a box, provided the equipment is secured with at least two _____ or larger screws.

12

When Type NM cable is used with nonmetallic boxes not larger than 2 1⁄4" x 4" securing the cable to the box shall not be required if the cable is fastened within _____ in. of that box.

True

When calculating box fill, each space within a box installed with a barrier shall be calculated separately.

2

When counting the number of conductors in a box, a conductor running through the box with an unbroken loop or coil not less than twice the minimum length required for free conductors shall be counted as _____ conductor(s).

Single

Where a luminaire stud or hickey is present in the box, a _____ volume allowance in accordance with Table 314.16(B) shall be made for each type of fitting, based on the largest conductor present in the box.

single

Where a luminaire stud or hickey is present in the box, a _____ volume allowance in accordance with Table 314.16(B) shall be made for each type of fitting, based on the largest conductor present in the box.

Six

Where angle or U pulls are made, the distance between each raceway entry inside the box or conduit body and the opposite wall of the box or conduit body shall not be less than _____ times the trade size of the largest raceway in a row plus the sum of the trade sizes of the remaining raceways in the same wall and row.

Single

Where one or more equipment grounding conductors enter a box, a _____ volume allowance in accordance with Table 314.16(B) shall be made based on the largest equipment grounding conductor.

True

Where one or more internal cable clamps are present in the box, a single volume allowance in accordance with Table 314.16(B) shall be made based on the largest conductor present in the box.

unobstructed

Where the junction box contains a power distribution block, and it has conductors that do not terminate on the power distribution block(s), the through conductors shall be arranged so the power distribution block terminals are _____ following installation.