NEC Art. 314 & 334 Flashcards
When Type NM cable is run across the top of a floor joist in an attick without permanent ladders or stairs, guard strips within ______ of the scuttle hole or attic entrance shall protect the cable
3 ft
4 ft
5 ft
6ft
6ft
334.23
Handhole enclosure covers shall require the use of tools to open, or they shall weigh over
45 lb
70 lb
100 lb
200 lb
100 lb
314.30(D)
Outlet boxes can be secured to suspended-ceiling framing members by mechanical means such as ________, or by other means identified for use with the suspended-ceiling framing members(s)
bolts
screws rivets
any of these
any of these
314.23(D)(1)
Underground _____ shall be installed so they are accessible without excavating sidewalks, paving, earth, or other substance that is to be used to establish the finished grade.
boxes and handhold enclosures
conduit bodies
handhole enclosures
none of these
boxes and handhold enclosures
314.29(B)
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
sealing fitting
bonding bushing
junction box
suitable insulating bushing or adapter
334.15(C)
A box is not required for Type NM cable where used with _____.
self contained switches
self contained receptacles
listed nonmetallic-sheathed cable interconnector devices
any of these
any of these
334.40(B)
A pendant box shall be supported from a multiconductor cord or cable in an approved manner that protects the conductors against strain. A connection to a box equipped with a hub shall be made with a(an) _____ cord grip attachment fitting marked for use with a threaded hub.
approved
listed
marked
identified
listed
314.23(H)(1)
Where conduit or tubing is used for the protection from physical damage of Type NM cable, it shall be provided with a bushing or adapter that provides protection from abrasion at the point the cable _____ the raceway.
Enters and exits
leaves and comes into
begins and ends
none of these
enters and exits
334.15(B)
Handhole enclosures shall be designed and installed to withstand _____.
600 lb of pressure
3000 lbs of preassure
6000 lbs of pressure
all loads likely to be imposed on them
All loads likely to be imposed on them
314.30
Boxes and conduit bodies shall be of an approved size to provide free space for all enclosed _____.
conductors
314.16
TYpe NM and type NMC cables are permitted in ________, except as prohibited in 334.12
one and two family dwellings and their attatched/detatched garages and storage buildings
multifamily dwellings and their detatched garages permitted to be of Types III, IV, and V construction
other structures permitted to be of Types III, IV, and V construction
any of these
Any of these, 334.10(1), (2), and (3)
Where up to four equipment grounding conductors enter a box, _____ volume allowance in accordance with Table 314.16(B) shall be made based on the largest equipment grounding conductor entering the box.
a single
a double
a 1/4
no additional
a single
314.16(B)(5)
Where a luminaire stud or hickey is present in the box, _____ volume allowance shall be made for each type of fitting, based on the largest conductor present in the box.
a single
a double
a 1/4
no additional
A double
314.16(B)(3)
Flat Type NM cables shall not be stapled on the edge true false
true
334.30
Where Type NM cable is run at angles with joists in unfinished basements and crawl spaces, it is permissible to secure cables not smaller than _____conductors directly to the lower edges of the joist.
three, 6 AWG
four, 8 AWG
four, 10 AWG
two 6 AWG, or three 8 AWG
two 6 AWG or three 8 AWG
334.15(C)
Type NM cable shall be protected from physical damage by _____.
EMT
Schedule 80 PVC conduit
RMC
any of these
any of these
334.15(B)
Type NM cable can be supported and secured by _____.
staples
cable ties listed and identified for securment and support
straps
any of these
any of these
334.30
nonmetalic boxes can be used with _____
nonmetallic sheaths
nonmetallic raceways
flexible cords
all of these
all of these
The total volume occupied by two internal cable clamps, six 12 AWG conductors, and a single-pole switch is _____.
2.00 cu in.
4.50 cu in.
14.0 cu in
20.25 cu in
20.25 cu in
314.16(B) and (B)(1) Table
Nonmetallic-sheathed cable shall be permitted to be unsupported where the cable is _____.
fished between access points through concealed spaces in finished buildings or structures
not more than 6 ft from the last point of cable support to the point of connection to a luminaire within an accessible ceiling in on, two, or multifamily dwellings
between framing membrs and exterior masonry walls
where installed in attics
fished between access points through concealed spaces in finished buildings or structures
334.30(B)(1) and (2)
According to the NEC, the volume of a 3 in. × 2 in. × 2 in. device box for conductor fill is _____.
8 cu in.
10 cu in.
12 cu in.
14 cu in.
10 cu in.
Table 314.16(A)
The installation and use of all boxes and conduit bodies used as outlet, device, junction, or pull boxes, depending on their use, and handhole enclosures, are covered within _____.
Article 110
Article 200
Article 300
Article 314
Article 314
314.1
The sheath on nonmetallic-sheathed cable shall extend not less than _____ beyond any cable clamp or cable entry.
1/8 in.
1/4 in.
3/8 iin.
1/2 in.
1/4 in.
334.19
For the purposes of determining box fill, each device or utilization equipment in the box which is wider than a single device box counts as two volume allowances for each _____ required for the mounting.
in.
ft.
gang
box
gang
314.16(B)(4)
Conductors, splices, or terminations in a handhole enclosure shall be listed as suitable for _____.
we locations
damp locations
direct burial in the earth
exterior use
wet locations
314.30(C)
In installations within noncombustible walls or ceilings, the front edge of a box, plaster ring, extension ring, or listed extender employing a flush-type cover, shall be set back not more than _____ from the finished surface.
1/8 in.
1/4 in.
3/8 in.
1/2 in.
1/4 in.
314.20
Type NM cable shall closely follow the ________ of the building finish or running boards when run exposed
surface
edges
corners
none of these
Surface
334.15(A)
Conduit bodies that are durably and legibly marked by the manufacturer with their ________ can contain splices, taps, or devices.
volume
size
rating
capacity
Volume
314.16(C)(2)
A wood brace used for supporting a box for structural mounting shall have a cross-section not less than nominal ________.
1 inch x 2 inch
2 inch x 2 inch
2 inch x 3 inch
2 inch x 4 inch
1 inch x 2 inch
314.23(B)(2)
Boxes, conduit bodies, and fittings installed in wet locations shall be listed for use in ________ locations.
wet
damp
dry
corrosive
wet
314.15
The number of 12 AWG THWN-2 conductors permitted in a 4 in. × 4 in.× 1 1/2 in. box is _____.
7
9
11
13
9
Table 314.16(A)
Two intermediate metal or rigid metal conduits threaded wrenchtight into an enclosure can be used to support an outlet box containing devices or luminaires if each raceway is supported within ________ of the box.
12 inch
18 inch
24 inch
36 inch
18 inches
314.23(F)
Type NM cable shall not be permitted to be installed _____ in dropped or suspended ceilings in other than one- and two-family and multifamily dwellings.
concealed
exposed
open
hidden
exposed
334.12(A)(2)
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.
temporarily
partially
never
rigidly
rigidly
314.23(C)
Type NM cable can be installed in multifamily dwellings and their detached garages permitted to be of Type(s) _____ construction.
III
IV
V
All of these
All of these
334.10(2)
Type NM cable shall not be used _____.
in other than dwelling units
in the air void of masonry block not subject to excessive moisture
for exposed work
embedded in poured cement, concrete, or aggregate
embedded in poured cement, concrete, or aggregate
334.12(A)(9)
Metal boxes shall be _____ in accordance with Article 250.
grounded
bonded
secured
grounded and bonded
grounded and bonded
314.4
