unec
Closet storage space is defined as a volume bounded by the sides and back closet walls extending from the closet floor vertically to a height of _____ ft or the highest clothes-hanging rod at a horizontal distance of 2 ft from the sides and back of the closet walls
6
A multipole, general-use snap switch shall not be fed from more than a single circuit unless it is listed and marked as a _____ switch.
2 or 3 circuit
Conductors larger than that for which the metal wireway is designed can be installed in any metal wireway.
falae
Unbroken lengths of surface metal raceways can be run through dry _____.
floors (all of these) partitions walls
Where a grounding means exists in the receptacle enclosure a(n) _____-type receptacle shall be used.
grounding
Type UF cable shall not be used in _____
hoistways motion picture studios storage battery rooms (all of these)
Conduit bodies that are durably and legibly marked by the manufacturer with their volume can contain splices, taps, or devices.
true
ENT shall be installed as a complete system in accordance with 300.18 and shall be securely fastened in place by an approved means and supported in accordance with 362.30(A) and (B).
true
PVC conduit shall be permitted for exposed work where subject to physical damage if identified for such use.
true
Raceways can be used as a means of support of Class 2 circuit conductors or cables that connect to the same equipment.
true
Luminaires attached to the framing members of a suspended ceiling shall be secured to the framing member(s) by mechanical means such as _____.
(any of these) bolts rivets screws
If a protective device rating is marked on an appliance, the branch-circuit overcurrent device rating shall not exceed _____ percent of the protective device rating marked on the appliance.
125
Receptacles rated _____ or less and designed for the direct connection of aluminum conductors shall be listed and marked CO/ALR.
20
Unless overload protection is provided by other approved means, the minimum number of overload units required for a three-phase alternating-current motor is _____.
3
Receptacles shall not be grouped or ganged in enclosures unless the voltage between adjacent devices does not exceed _____
300
Torque requirements for motor control circuit device terminals shall be a minimum of _____ lb-in. (unless otherwise identified) for screw-type pressure terminals used for 14 AWG and smaller copper conductors.
7
In straight pulls, the length of the box or conduit body shall not be less than _____ times the trade size of the largest raceway.
8
_____ wiring methods can be installed in a cable tray
Cable (all of these) Nonmetallic raceway Metal racewa
Power distribution blocks installed on the line side of the service equipment shall be _____ "suitable for use on the line side of service equipment" or equivalent.
a and b
Flexible cords and flexible cables shall be protected by _____ where passing through holes in covers, outlet boxes, or similar enclosures.
bushing or fittings a or b
The disconnecting means for a motor controller shall be designed so that it cannot _____ automatically
close
When LFMC is used to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment or for equipment requiring movement after installation, a(n) _____ conductor shall be installed.
equipment grounding
Metal raceways shall be bonded to the metal pole with a(n) _____.
equipment grounding conductor
When replacing receptacles in locations that would require GFCI protection under the current NEC, _____ receptacles shall be installed
gfci protected
A unit switch with a marked "_____" position that is part of a fixed space heater, and disconnects all ungrounded conductors, shall be permitted to serve as the required disconnecting means.
off
A switchboard or panelboard containing an ungrounded ac electrical system is required to be legibly and permanently field marked to caution that the system is ungrounded and include the _____.
operating voltage between connectors
Cable trays can be used as a support system for _____
service conductors, feeders, and branch circuits communications circuits (all of these) control and signaling circuits
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 conductors in parallel are run in separate raceways, the raceways shall have the same electrical characteristics
true
A multioutlet assembly shall not be installed _____
where subject to corrosive vapors where subject to severe physical damage (all of these) in hoistways
Where Type NM cable passes through factory or field openings in metal members, it shall be protected by _____ bushings or _____ grommets that cover metal edges
listed
Low-voltage lighting systems shall be listed or assembled with listed components
true
For transformers, other than Class 2 and Class 3, a means is required to disconnect all transformer ungrounded primary conductors. The disconnecting means shall be located within sight of the transformer unless the disconnect _____.
a and b
Joints between lengths of ENT, couplings, fittings, and boxes shall be made by _____.
an approved method
Conductors installed in nonmetallic raceways run underground shall be permitted to be arranged as _____ installations. The raceways shall be installed in close proximity, and the conductors shall comply with the provisions of 300.20(B).
(all of these) isolated phase neutral grounded conductor
Type AC cable shall be supported and secured by _____.
(any of these) cable ties listed and identified for securement and support straps staples
Insulated conductors used in wet locations shall be _____
(any of these) listed for wet locations moisture-impervious metal-sheathed MTW, RHW, RHW-2, TW, THW, THW-2, THHW, THWN, THWN-2, XHHW, XHHW-2, or ZW
IMC can be installed in or under cinder fill subject to permanent moisture _____.
(any of these) when protected on all sides by 2 in. of noncinder concrete where protected by corrosion protection approved for the condition where the conduit is not less than 18 in. under the fill
A cable, raceway, or box installed under metal-corrugated sheet roof decking shall be supported so the top of the cable, raceway, or box is not less than _____ in. from the lowest surface of the roof decking to the top of the cable, raceway, or box.
1 1/2
For cord-and-plug-(or attachment fitting-) connected appliances, a(n) _____ plug (or attachment fitting) and receptacle combination shall be per-mitted to serve as the disconnecting means.
accessible
Where more than two Type NM cables are installed through the same opening in wood framing that is to be sealed with thermal insulation, caulk, or sealing foam, the allowable ampacity of each conductor shall be _____.
adjusted in accordance with Table 310.15(B)(3)(a
Cables or raceways installed using directional boring equipment shall be _____ for this purpose
approved
Conductors within flexible cords and flexible cables shall not be associated together in such a way that the _____ temperature of the conductors is exceeded
limiting
Ferrous metal raceways, boxes, fittings, supports, and support hardware can be installed in concrete or in direct contact with the earth or other areas subject to severe corrosive influences, where _____ approved for the condition.
made material
The space above a hung ceiling used for environmental air-handling purposes is an example of _____, and the wiring limitations of _____ apply.
other space used for environmental air (plenum), 300.22(C)
A panelboard shall be provided with physical means to prevent the installation of more _____ devices than that number for which the panelboard was designed, rated, and listed.
over current
Article 440 applies to electric motor-driven air-conditioning and refrigerating equipment that has a hermetic refrigerant motor-compressor.
true
In installations within or behind 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 _____ in. from the finished surface.
1/4
Surface-type cabinets, cutout boxes, and meter socket enclosures in damp or wet locations shall be mounted so there is at least _____-in. airspace between the enclosure and the wall or supporting surface.
1/4
Overcurrent protection for motor control circuits shall not exceed _____ percent if the conductor is based on Table 310.15(B)(17) and does not extend beyond the motor control equipment enclosure.
400%
In completed installations, each outlet box shall have a
cover
Cables laid in wood notches require protection against nails or screws by using a steel plate at least _____ in. thick, installed before the building finish is applied.
1/16
Type MC cable shall be secured at intervals not exceeding _____ ft.
6
Fixture wires are used to connect luminaires to the _____ conductors supplying the luminaires.
branch circuit
The number of conductors permitted in LFNC shall not exceed the percentage fill specified in _____.
chapter 9 table 1
Threadless couplings and connectors used with RMC buried in masonry or concrete shall be the _____ type.
concrete tight
The use of EMT shall be permitted for both exposed and concealed work in _____.
dry, damp, and wet locations any hazardous (classified) location as permitted by other articles in this Code (all of these) concrete, in direct contact with the earth or in areas subject to severe corrosive influences where installed in accordance with 358.10(B)
Switches shall not be installed within tubs or shower spaces unless installed as part of a listed tub or shower assembly.
true
Type AC cable installed through, or parallel to, framing members shall be protected against physical damage from penetration by screws or nails.
true
Type SE cable can be used for interior wiring as long as it complies with the installation requirements of Part II of Article 334, excluding 334.80.
true
Where Type TC cable is installed in one- and two-family dwelling units, 725.136 provides rules for limitations on Class 2 or 3 circuits contained within the same cable with conductors of electric light, power, or Class 1 circuits
true
Conductors shall be permitted for use in any of the wiring methods recognized in Chapter 3 and as permitted in the NEC.
trur
Luminaires containing a metal halide lamp (other than a thick-glass PAR lamp) shall be provided with a containment barrier that encloses the lamp, or shall be provided with a physical means that only allows the use of a(n) _____.
type o
Switches shall be marked with the _____
voltage (all of these) maximum horsepower, if horsepower rated current
Lampholders installed in wet locations shall be listed for use in _____ locations.
wet
