All 118 TEST and QUIZES

Terminals are designed for no more than [ans] (number only) conductor(s), unless marked otherwise.

1 110.14(A)

Feeder conductors must be protected against overcurrent in accordance with the provisions of Part [ans1] of Article [ans2].

1 240 NEC 215.3

The load small appliance circuits in a dwelling shall be calculated at no less than [ans1] va each and the laundry circuit load at [ans2] va.

1500 NEC 220.52(A) NEC 220.52(B

A two inch rigid metal conduit installed in a straight run, with threaded couplings, is allowed be supported every [ans] feet.

16' Table 344.30(B)(2) Supports for Rigid Metal Conduit

NEC Reference: [ref] Receptacle outlets in or on floors shall not be counted as part of the required number of receptacle outlets unless located within [ans] (distance) of the wall.

210.52(A)(3) 18"

NEC Reference: [ref] Nonmetallic boxes shall be suitable for the lowest [ans] conductor entering the box.

314.17(B)(4) temperature-rated

Equipment grounding conductors #[ans] awg and larger are not required to have a green outer insulation if properly identified otherwise.

4 According to 250.19(A)(2), conductors 4 AWG and larger shall not be required to have a green outer insulation if properly identified otherwise.

Insulating bushings are required on conduits containing conductor size number [ans] or larger.

4 AWG

Rigid Polyvinyl Chloride conduit shall be securely fastened within [ans] inches of a box.

36" 352.30(A) Securely Fastened. PVC conduit shall be securely fastened within 900 mm (3 ft) of each outlet box, junction box, device box, conduit body, or other conduit termination. Conduit listed for securing at other than 900 mm (3 ft) shall be permitted to be installed in accordance with the listing.

NEC Reference: [ref] ENT shall be secured at least every [ans] (distance).

362.30(A) 3'

NEC Reference: [ref] Connections from headers to cabinets and other enclosures, in cellular concrete floor raceways, shall be made by means of: listed metal raceways listed nonmetallic raceways listed fittings I only I and II only I and III only I, II, and III Answer: [ans] (letter only)

372.18(B) c. I and III only

NEC Reference: [ref] A [ans] shall be defined as a transverse raceway for electric conductors, providing access to predetermined cells of a cellular metal floor, thereby permitting the installation of electric conductors from a distribution center to the cells.

372.2 Header

NEC Reference: [ref] The sum of cross-sectional areas of all contained conductors and cables at any cross section of a wireway shall not exceed [ans] fill.

376.22(A) 20%

NEC Reference: [ref] Splices and taps shall be permitted within a wireway provided they are accessible. The conductors, including splices and taps, shall not fill the wireway to more than [ans] of its area at that point.

376.56(A) 75%

NEC Reference: [ref] Multioutlet assemblies shall not: be installed in hoistways. run within dry partitions. run through dry partitions. I only III only I and II only I, II, and III Answer: [ans] (letter only)

380.12(5) c. I and II only

NEC Reference: [ref] Nonmetallic surface extensions must be secured in place by approved means at intervals not exceeding [ans] (distance).

382.30(A) 8"

NEC Reference: [ref] When an outlet from an underfloor raceway is discontinued, the sections of circuit conductors supplying the outlet: shall be permitted to be spliced. shall be removed from the raceway. shall be permitted to be reinsulated. shall be handled like abandoned outlets on loop wiring. Answer: [ans] (letter only)

390.57 b. shall be removed from the raceway.

Chapters 1-4 of the NEC apply:

Generally to the entire NEC 90.3

The vertical clearance above roof level must be maintained for a distance of at least ____ from all edges of the roof.

a. 3 ft (900 mm)

At least ____ of free conductor shall be left at each outlet, junction, and switch point.

a. 6 in. (150 mm)

All 125-volt through 250-volt receptacles supplied by single-phase branch circuits rated 150 volts or less to ground serving kitchen countertops must have ____.

a. GFCI protection

____ in the ends of larger conduits (2 to 6 in.) can prevent conduit collapses or other deformities.

a. Installing PVC plugs

____ is defined as the underground conductors between the utility electric supply system and the service point.

a. Service lateral

____ in exterior walls are not counted as wall space.

a. Sliding panels

____ receptacles are identified by the letters "TR."

a. Tamper-resistant

____ determines the minimum number of receptacles in a given dwelling.

a. Wall space

Flexible metal conduit (FMC) is a raceway of circular cross section made of ____.

a. a helically wound, formed, and interlocked metal strip

A multiconductor cable, optical fiber cable, or flexible cord of two or more conductors is treated as ____ for percentage conduit fill area calculations.

a. a single conductor

Wire connectors, pigtails, locknuts, bushings, raceway connectors, and grounding screws are not factors when calculating ____.

a. box fill

An appliance branch circuit supplies energy to one or more outlets for the purpose of ____.

a. connecting appliance(s)

A multiwire circuit must consist of conductors connected to ____.

a. different phases

To calculate the minimum number of 20-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

a. divide by 20 and round up to obtain the number of circuits

To find the minimum circuit ampacity, ____.

a. divide the wattage by the voltage to find amperage and multiply the amperage by 125%

Snap switches (including dimmer switches) must be connected to a(n) ____ and must also provide a means to connect metal faceplates to the equipment grounding conductor, even if a metal faceplate is not installed.

a. equipment grounding conductor

Exposed runs of Type AC cable installed on the underside of joists must be supported at ____.

a. every joist

Electrical installation openings that penetrate into or through fire-resistant-rated structures must be ____.

a. firestopped

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box , meter, or other enclosure, inside or outside the building wall.

a. first point of connection

The maximum number of conductors applies only if the box does not contain any ____.

a. fittings or devices

A "header " is a transverse raceway ____.

a. for electric conductors, providing access to predetermined cells of a cellular metal floor

Cables running horizontally (or diagonally) are considered supported and secured when passing through a(n) ____ unless the support intervals exceed those listed for the specified cable.

a. framing member

Fuses must be plainly marked (by printing on or a label attached to the fuse barrel), showing the following: (1) ampere rating, (2) voltage rating, (3) ____, (4) "current-limiting" where applicable, and (5) the name or trademark of the manufacturer.

a. interrupting rating if other than 10,000 amperes

Nonmetallic-sheathed cable passing through holes (or slots) in metal framing must be protected by ____ covering all metal edges.

a. listed bushings (grommets)

If the load requirements of a single-phase installation are greater than the serving agency normally supplies through one service, ____ are permitted.

a. multiple services

An [ans] branch circuit supplies energy to one or more outlets to which appliances are to be connected.

appliance NEC 100

Acceptable to the AHJ means that the equipment has been:

approved 110.2

Each occupant must have ready access to ____ protecting the conductors supplying that occupancy unless otherwise permitted in 240.24(B)(1) and (B)(2).

c. all overcurrent devices

A clothes dryer outlet must have ____ and an equipment grounding conductor.

c. an insulated grounded (neutral) conductor

A branch circuit providing power to bathroom receptacles shall not provide power to ____.

c. any receptacle or lighting outside of bathrooms

Cables entering or exiting conduit used for support or protection against physical damage require fittings on the conduit ends to prevent ____.

c. cable abrasion

Cover measurement commences at the top surface of any direct burial wiring method and ends at the ____ of the finished grade's top surface.

c. closest point

A(n) ____ is permitted on a small-appliance branch circuit.

c. dedicated clock outlet

The conductor voltage that is dropped is a percentage of the source voltage and can be calculated by ____.

c. dividing voltage drop by the source voltage

A group of conductors that fit into one conduit may not fit into another type because the ____ of different types of conduit vary.

d. internal diameters

A general-purpose branch circuit may feed ____.

d. lights, receptacles, or both

The larger the circular mil area of a conductor, the ____.

d. lower the resistance

A split-wire receptacle receiving power from a single source (one breaker or one fuse) is ____.

d. not a multiwire receptacle

General receptacle installation provisions for multifamily dwellings are almost identical to those for ____.

d. one-family dwellings

Volume in boxes can be increased by using ____ rings, domed covers, extension rings, or similar items.

d. plaster (mud)

When metal parts are required to be electrically connected, a(n) ____ is installed, thereby guaranteeing the required electrical conductivity.

d. reliable conductor (bonding jumper)

Splices and taps are permitted within a surface metal raceway having a removable cover that ____.

d. remains accessible once installed

Where multiple rows of raceways enter a box, you should calculate each row separately and use the ____.

d. single row that provides the maximum distance

Required branch circuits include ____ circuits.

d. small appliance, laundry, and bathroom

Multiconductor cord or cable used to support a box must be protected in an approved manner so that the conductors are not subjected to ____.

d. strain

Electrical metallic tubing must not be ____.

d. threaded

Wireways are ____ housing and protecting electric wires (and cables).

d. troughs with hinged or removable covers for

The neutral point is the common point on a ____ in a polyphase system.

d. wye-connection

Feeder and branch circuits can be installed in the same raceway with service conductors if they are properly bonded and grounded.

false NEC 230.7

The neutral conductor is allowed to run unbroken from the meter base, through the service disconnect to the panel. The reason for doing this is that by not making a termination in the service disconnect the chance of induction heating is lessened.

false NEC 230.75

The service conductors shall be connected to the service disconnecting means terminals by pressure connectors, clamps, or soldering.

false NEC 230.81

No equipment is ever allowed to be connected to the supply side of the service disconnect.

false NEC 230.82

The service conductors begin at the connection of the building wiring to the utility conductors and ends at the service disconnecting means.

true NEC 100

Kitchen counter top serving receptacles must be supplied from a minimum of two small appliance circuits.

true NEC 210.52(B)(1)

A required small appliance circuit in a dwelling unit shall not supply an outlet for the lights.

true NEC 210.52(B)(2)

GFCI protection is required for all laundry areas.

true NEC 210.8(A)(10)

In a dwelling unit unfinished basement, GFCI protection is not required for receptacles that supply power to permanently installed security/fire alarm systems.

true NEC 210.8(A)(5) Exception

Kitchen dishwasher branch circuits outlets are required to be GFCI protected.

true NEC 210.8(D) NEC 422.5(A)(7)

The 15 and 20 amp general-use lighting and receptacle circuits' loads are included in the 3 va/ft2 unit load for a dwelling.

true NEC 220.14(J)

The basic calculation for a service neutral load shall be the maximum unbalance determined by Article 220.

true NEC 220.61(A)

Under some conditions, the location of the service head may be below the point of attachment of the service drop conductors.

true NEC 230.26 NEC 230.54

The minimum size underground service lateral conductors is the same as the minimum size service drop conductors.

true NEC 230.31(B)

Service entrance conductors shall be permitted to be spliced under certain conditions.

true NEC 230.33

The grounded conductor must be sized according to the maximum unbalanced load and in no case smaller than the required grounding electrode conductor.

true NEC 230.42(C) => 250.24(C) => 250.102(C)(1)

A service conductor with a higher voltage to ground than the others, is to be marked orange.

true NEC 230.56

Installing a meter base "back-to-back" with a panel containing a main breaker meets the requirement of 230.70(A) regarding the location of the service disconnect means.

true NEC 230.7(A)(1)

Two or three single pole breakers may be tied together to create a multi-pole service disconnect.

true NEC 230.71(B)

The minimum rating for the service disconnecting means, supplying a roadside billboard lighting, is 60 amp.

true NEC 230.79(D)

Service conductors run above a window are not required to maintain the 3-foot distance from the window.

true NEC 230.9(A)

Each ungrounded service conductor shall have overload protection.

true NEC 230.90

The service overcurrent device shall be an integral part of the service disconnecting means or shall be located immediately adjacent thereto.

true NEC 230.91

Type ZW insulated conductors can be used in dry, damp and wet locations.

true Table 310.4(A)

The size of the equipment bonding jumper on the supply side of the service is based on the size of the largest [ans] conductors.

ungrounded Table 250.102(C)(1)

The minimum demand load for a household clothes dryer is [ans] (power).

5000 W NEC 220.54

Mandatory rules in the NEC® contain the language ____.

"shall" or "shall not"

Where a cable is installed in bored holes, in a rafter, the edge of the hole cannot be less than [ans] inches from the edge of the wood being bored.

1.25" 300.4(A)(1) Bored Holes. In both exposed and concealed locations, where a cable- or raceway-type wiring method is installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than 32 mm (1¼ in.) from the nearest edge of the wood member. Where this distance cannot be maintained, the cable or race‐ way shall be protected from penetration by screws or nails by a steel plate(s) or bushing(s), at least 1.6 mm (1 ∕16 in.) thick, and of appropriate length and width installed to cover the area of the wiring.

What would be the size of the grounding electrode conductor for a service comprised of a 500 kcmil copper conductor on each phase? [ans]

1/0 Table 250.66

Conductors of size [ans] and larger are permitted to be paralleled.

1/0 AWG 310.10(G)(1) General. Aluminum, copper-clad aluminum, or copper conductors, for each phase, polarity, neutral, or grounded circuit shall be permitted to be connected in parallel (electrically joined at both ends) only in sizes 1/0 AWG and larger where installed in accordance with 310.10(G)(2) through (G)(6).

Liquid tight flexible conduit smaller than [ans] inch(es) shall not be used except as permitted elsewhere in the code.

1/2" 350.20 Size. (A) Minimum. LFMC smaller than metric designator 16 (trade size ½) shall not be used. Exception: LFMC of metric designator 12 (trade size ⅜) shall be permitted as covered in 348.20(A).

The volume of a 3 inch x 2 inch x 2 inch device box is [ans] cubic inches.

10 Table 314.16(A) Metal Boxes

Underground metal water piping used as a grounding electrode must be in contact with earth for a minimum of [ans] feet in length.

10 250.52(A)(1)

A 1 inch IMC must be supported every [ans] feet.

10' 342.30(B) Supports. IMC shall be supported in accordance with one of the following: Conduit shall be supported at intervals not exceeding 3 m (10 ft). The distance between supports for straight runs of conduit shall be permitted in accordance with Table344.30(B)(2), provided the conduit is made up with threaded couplings and supports that prevent transmission of stresses to termination where conduit is deflected between supports. Exposed vertical risers from industrial machinery or fixed equipment shall be permitted to be supported at intervals not exceeding 6 m (20 ft) if the conduit is made up with threaded couplings, the conduit is supported and securely fastened at the top and bottom of the riser, and no other means of intermediate support is readily available. Horizontal runs of IMC supported by openings through framing members at intervals not exceeding 3 m (10 ft) and securely fastened within 900 mm (3 ft) of termination points shall be permitted.

Hallways in excess of [ans1] (distance) are required to have at least one receptacle outlet as measured down the [ans2] of the hall.

10' centerline NEC 210.52(H)

Under certain conditions, tap conductors in length up to [ans] feet are permitted in high bay manufacturing buildings that have walls over 35 feet high.

100 According to 240.21(B)(4), in high bay manufacturing building that have walls over 35 feet high, tap conductors in length up to 100 feet are permitted.

NEC Reference: [ref] When a disconnecting means must be located within sight from a motor, the disconnect must be visible and not more than [ans] (distance) from the motor.

100 50'

NEC Reference: [ref] Where the NEC specifies that one equipment shall be "within sight of" another equipment, the specified equipment shall be visible and not more than [ans] (distance) distant from the other.

100 50'

NEC Reference: [ref] A(n) [ans] is defined as utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air-conditioning, food mixing, deep frying, and so forth.

100 Appliance

A one-family dwelling service disconnecting means must have a minimum rating of ____.

a. 100 amperes, 3-wire

NEC Reference: [ref] A [ans] is a conductor used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system.

100 Grounding Electrode Conductor

NEC Reference: [ref] A(n) [ans] is used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system.

100 Grounding Electrode Conductor

NEC Reference: [ref] A(n) [ans] is a shaftway, hatchway, well hole, or other vertical opening of space in which an elevator or dumbwaiter is designed to operate.

100 Hoistway

NEC Reference: [ref] A [ans] is a type of surface, flush, or freestanding raceway designed to hold conductors and receptacles, assembled in the field or at the factory.

100 Multioutlet Assembly

NEC Reference: [ref] The definition of a branch circuit is [ans] (letter only). the circuit conductors between the service and the subpanel the circuit conductors prior to the final overcurrent device protecting the circuit the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s) the circuit conductors between the final overload device protecting the circuit and the outlet(s)

100 c. the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s)

NEC Reference: [ref] A branch circuit that supplies two or more receptacles or outlets for lighting and appliances is a(n)[ans] branch circuit.

100 general purpose

NEC Reference: [ref] A branch circuit that supplies only one utilization equipment is known as a(n) [ans] branch circuit

100 individual

NEC Reference: [ref] IMC encased in a concrete slab, on the first floor of an office building, is considered a [ans] location.

100 wet

The wiring methods listed in Chapter 3 are for [ans] volt systems, nominal or less.

1000 V 300.2(A) Voltage. Wiring methods specified in Chapter 3 shall be used for 1000 volts, nominal, or less where not specifically limi‐ ted in some section of Chapter 3. They shall be permitted for over 1000 volts, nominal, where specifically permitted elsewhere in this Code.

NEC Reference: [ref] Unused openings, other than those intended for the operation of equipment, those intended for mounting purposes, or those permitted as part of the design for listed equipment, shall be closed to afford protection [ans] to the wall of the equipment.

110.12(A) substantially equivalent

NEC Reference: [ref] The width of the working space in front of electric equipment operating at 1000 volts, nominal, or less to ground shall be the width of the equipment or [ans] (distance), whichever is greater.

110.26(A)(2) 30"

NEC Reference: [ref] The minimum height of working space for equipment operating at 1000 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or maintenance while energized shall be [ans] (distance) or the height of the equipment, whichever is greater.

110.26(A)(3) 6.5'

NEC Reference: [ref] Other equipment or support structures, such as concrete pads, associated with the electrical installation located above or below the electrical installation shall be permitted to extend not more than beyond the front of the electrical equipment. 0 in. 6 in. 12 in 24 in. Answer: [ans] (letter only)

110.26(A)(3) b. 6 in

NEC Reference: [ref] Listed or labeled equipment shall be installed and used in accordance with any [ans] included in the listing or labeling.

110.3(B) instructions

A nonmetallic raceway installed in a trench covered by 2" concrete shall be buried to a depth of [ans] inches.

12" Table 300.5

Armored cable shall be supported at intervals not exceeding 4½ feet and the cable shall be secured within [ans] inches of cable termination.

12" 320.30(B) Securing. Unless otherwise permitted, Type AC cable shallbe secured within 300 mm (12 in.) of every outlet box, junction box, cabinet, or fitting and at intervals not exceeding 1.4 m (4½ ft).

On a kitchen counter, a receptacle is required above any counter space [ans1] (distance) or greater in width and receptacles installed above a counter top must be no more than [ans2] (distance) apart.

12" 4' NEC 210.52(C) NEC 210.52(C)(1)

Sign and outline lighting is calculated at [ans] va for each required branch circuit.

1200 220.14(F)

Individual appliances that are continuously loaded shall have the branch circuit rating sized no less than [ans] percent of the appliance marked ampere rating.

125% (A) Individual Branch Circuits. The ampacities of branch-circuit conductors shall not be less than the marked rating of the appliance or the marked rating of an appliance having combined loads. The ampacities of branch-circuit conductors for motor-operated appliances not having a marked rating shall be in accordance with Part II of Article 430. The branch-circuit rating for an appliance that is a continuous load, other than a motor-operated appliance, shall not be less than 125 percent of the marked rating, or not less than 100 percent of the marked rating if the branch-circuit device and its assembly are listed for continuous loading at 100 percent of its rating. Branch circuits and branch-circuit conductors for household ranges and cooking appliances shall be permitted to be in accordance with Table 220.55 and shall be sized in accordance with 210.19(A)(3).

A nonmetallic raceway buried underneath a two-family driveway must be [ans] inches deep.

18" Table 300.5 Minimum Cover Requirements, 0 to 1000 Volts, Nominal, Burial in Millimeters (Inches)

Receptacle outlets, not in a dwelling unit or office building, shall be calculated at not less than [ans] va.

180 NEC 220.14(I)

The original Code document was developed in [ans] (year) as a result of the united efforts of various insurance, electrical, architectural, and allied interests.

1897

Kitchen equipment, in other than dwellings, demand load can be no less than the sum of the largest [ans] (number) kitchen equipment loads.

2 NEC 220.56

The minimum box width for U pulls must include ____.

a. 12 in. between raceways plus the thickness of the two raceways

If a ground rod cannot be driven in due to solid rock, it can be buried horizontally if it is at least [ans] feet deep.

2.5' 250.53(G)

The minimum size aluminum conductor allowed as a feed on a 150 amp service supplying the main power to a dwelling is [ans]?

2/0 Table 310.12 Single-Phase Dwelling Services and Feeders

What size copper equipment grounding conductor is required for a circuit where the circuit breaker is rated at 1000 amps? [ans]

2/0 Table 250.122

At least one [ans] (current) circuit shall be provided for the laundry receptacle outlets.

20 A NEC 210.52(F)

The hand hole of metal fixture poles can be omitted for metal poles [ans] feet or less above finished grade if the pole is equipped with a hinged base.

20' 410.30(B) Metal or Nonmetallic Poles Supporting Luminaires. Metalor nonmetallic poles shall be permitted to be used to support luminaires and as a raceway to enclose supply conductors, provided the following conditions are met: A pole shall have a handhole not less than 50 mm ×100 mm (2 in. × 4 in.) with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base. Exception No. 1: No handhole shall be required in a pole 2.5 m (8 ft) or less in height above grade where the supply wiring method continues without splice or pull point, and where the interior of the pole and any splices are accessible by removing the luminaire. Exception No. 2: No handhole shall be required in a pole 6.0 m (20 ft) or less in height above grade that is provided with a hinged base.

Show window lighting load shall be calculated at [ans] va per linear foot unless required differently by other provisions.

200 NEC 220.43(A)

The number of branch circuits required for lighting shall be calculated in accordance with Article/Section [ans].

210.11 NEC 210.11 NEC 220.10

NEC Reference: [ref] A receptacle installed in an area designated for the installation of laundry equipment and where there are no other receptacles can be a: 15-ampere single receptacle. 15-ampere duplex receptacle. 20-ampere duplex receptacle. III only I or III II or III I, II, or III

210.11(C)(2) c. II or III

NEC Reference: [ref] A branch circuit providing power to a bathroom receptacle may also provide power to: I. two other receptacles, two luminaires, and an exhaust fan in the same bathroom. II. two other receptacles in the same bathroom and receptacles in two additional bathrooms. III. one luminaire in the same bathroom and one luminaire in another bathroom. I only I or II only II or III only I, II, or III

210.11(C)(3) I or II only

NEC Reference: [ref] In dwelling units, arc-fault circuit-interrupter protection shall not be required for 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed in [ans] (letter only). kitchens bathrooms laundry areas closets

210.12(A) b. bathrooms

NEC Reference: [ref] Which of the following is not a standard classification for a branch circuit supplying several loads? 20 amperes 25 amperes 30 amperes 50 amperes Answer: [ans] (letter only)

210.18 b. 25 amperes

NEC Reference: [ref] Tap conductors for household cooking equipment supplied from a 50-ampere branch circuit shall have an ampacity of not less than [ans] (current).

210.19(A)(3) 20 amperes

NEC Reference: [ref] The minimum size THHN copper neutral conductor permitted for an 8¾ kW, 240-volt, 3-wire household electric range is [ans] (letter only). 12 AWG 10 AWG 8 AWG 6 AWG

210.19(A)(3) Exception No. 2 b. 10 AWG

NEC Reference: [ref] A single receptacle installed on an individual branch circuit shall have an ampere rating not less than [ans]% (letter only) of the rating of the branch circuit. 125 100 80 50

210.21(B)(1) b. 100

NEC Reference: [ref] The rating of a single cord- and plug-connected utilization equipment shall not exceed [ans] (percent) of the branch-circuit ampere rating.

210.23(A)(1) 80%

NEC Reference: [ref] A multiwire branch circuit can supply: 120/240 volts to only one piece of utilization equipment 120/240 volts where all ungrounded conductors are opened simultaneously I only II only either I or II neither I nor II

210.4(C) either I or II

NEC Reference: [ref] Appliance receptacle outlets installed for specific appliances, such as laundry equipment, shall be placed within [ans] (distance) of the intended location of the appliance.

210.50(C) 6'

NEC Reference: [ref] Receptacles located more than [ans] (distance) above the floor are not counted in the required number of receptacles along the wall.

210.52 5.5'

NEC Reference: [ref] The maximum distance between receptacles in a one-family dwelling is [ans] (distance).

210.52(A)(1) 12'

NEC Reference: [ref] A refrigerator receptacle can be fed from a: 15-ampere individual branch circuit. 20-ampere individual branch circuit. 20-ampere small appliance branch circuit. II only III only II or III I, II, or III Answer: [ans] (letter only)

210.52(B)(1) d. I, II, or III

NEC Reference: [ref] The maximum distance between kitchen countertop receptacles is [ans].

210.52(C)(1) 4'

NEC Reference: [ref] Receptacles are permitted under an overhanging countertop, but are not counted as required countertop receptacles, where the countertop extends more than [ans] (distance) beyond its support base.

210.52(C)(3)(3) 6"

NEC Reference: [ref] At least one GFCI-protected receptacle shall be located within [ans] (distance) from the outside edge of each bathroom sink.

210.52(D) 3'

NEC Reference: [ref] For a one-family dwelling that is at grade level, at least one receptacle outlet readily accessible from grade and not more than [ans] (distance) above grade level shall be installed at the front and back of the dwelling.

210.52(E)(1) 6.5'

NEC Reference: [ref] For a one-family dwelling, at least one receptacle outlet shall be installed in each: basement. attached garage. detached garage. I only I and II only II and III only I, II, and III Answer: [ans] (letter only)

210.52(G) b. I and II only

NEC Reference: [ref] In a dwelling unit, a hallway measuring 21½ ft in length requires a minimum of [ans] receptacle outlet(s).

210.52(H) 1

NEC Reference: [ref] Switch-controlled receptacles (in lieu of a lighting outlet) are permitted in all but which of the following? Bedroom Library Dining room Hallway Answer: [ans] (letter only)

210.70(A)(1)Exception(1) c. Dining room

NEC Reference: [ref] A one-family dwelling has a front entrance on the east side of the house, an attached garage with two 10-ft wide doors on the south side, and a back entrance door on the west side of the house. This one-family dwelling requires [ans] (number only) lighting outlet(s) for these outdoor entrances.

210.70(A)(2)(2) 2

NEC Reference: [ref] For dwelling units, attached garages, and detached garages with electric power, at least one lighting outlet controlled by a listed wall-mounted control [ans] shall be installed to provide illumination on the exterior side of outdoor entrances or exits with grade-level access.

210.70(A)(2)(2) device

NEC Reference: [ref] Interior stairway lighting outlets shall be controlled by a wall switch at each floor level, where the difference between levels is [ans] (number) steps or more.

210.70(A)(2)(3) 6

NEC Reference: [ref] A 20-amp, 125-volt receptacle installed within [ans] (distance) from the top inside edge of the bowl of the sink shall have ground-fault circuit-interrupter protection for personnel.

210.8(A)(7) 6'

A unit load of not less than specified in Table [ans1] shall constitute the minimum lighting load for Non-Dwelling Occupancy. The unit load, per square foot, for an Automotive facility is [ans2] va.

220.12 1.5 NEC 220.12

NEC Reference: [ref] What is the minimum number of 15-ampere branch circuits required for a one-family dwelling with an area of 1,800 sqft? The voltage at this dwelling will be 240/120 volts, Answer: [ans] (number only)

220.12(J) 3 Multiply 1800 ft2 by 3 volt-ampere: 1800 × 3 = 5400 volt-amperes Find the total amperes: 5400 ÷ 120 = 45 amps Divide 45 amps by 15: 45 ÷ 15 = 3

The ampere rating of a range receptacle is determined by Table [ans].

220.55 NEC 210.21(B)(4)

NEC Reference: [ref] Service-drop conductors shall have a vertical clearance of not less than [ans] (distance) above the roof surface.

230.24(A) 8'

NEC Reference: [ref] Residential 240-volt service-drop conductors must have a vertical clearance above a driveway of at least [ans] (distance).

230.24(B)(2) 12'

NEC Reference: [ref] The point of attachment of the service-drop conductors to a building must not be less than [ans] (distance) above finish grade.

230.26 10'

NEC Reference: [ref] Service-entrance cables shall be supported by straps or other approved means within [ans] (letter only) of every service head, gooseneck, or connection to a raceway or enclosure. 1 ft 6 ft 12 ft 30 ft

230.51(A) a. 1ft

NEC Reference: [ref] Where exposed to the weather, raceways shall be: rainproof and arranged to drain. watertight and arranged to drain. weatherproof and arranged to drain. listed or approved for use in wet locations and arranged to drain. Answer: [ans] (letter only)

230.53 d. listed or approved for use in wet locations and arranged to drain.

NEC Reference: [ref] Service heads on raceways or service-entrance cables and [ans] in service-entrance cables shall be located above the point of attachment of the service-drop or overhead service conductors to the building or other structure.

230.54(C) goosenecks

NEC Reference: [ref] Energized parts of service equipment that are not enclosed shall be installed on a [ans] (letter only) and guarded in accordance with 110.18 and 110.27. switchboard panelboard control board II only I or II only II or III only I, II, or III

230.62(B) d. I, II, or III

NEC Reference: [ref] Service conductors run above the top level of a window shall be: 8 ft above a window. accessible. 3 ft above a window. considered out of reach. Answer: [ans] (letter only)

230.9(A) c. 3 ft above a window.

A receptacle is required in any habitable room on any wall space [ans] (distance) or greater in width and within [ans2] (distance) of a doorway or opening. Wall receptacles are to be placed no more than [ans3] (distance) apart.

24" 6' 12' NEC 210.52(A)(1) NEC 210,52(A)(2)(1)

NEC Reference: [ref] Supplementary overcurrent devices shall not be required to be [ans].

240.10 readily accessible

NEC Reference: [ref] In dwelling units, a duplex receptacle fed from a multiwire branch circuit must have [ans] (letter only) as a means of disconnect. two single-pole circuit breakers without identified handle ties one double-pole circuit breaker two single-pole circuit breakers with identified handle ties I only I or II only II only II or III only

240.15(B) d. II or III only

NEC Reference: [ref] Overcurrent devices shall not be located in the vicinity of easily ignitible material such as in [ans]

240.24(D) clothes closets

NEC Reference: [ref] Plug fuses of 15-ampere and lower rating shall be identified by a(n) [ans] configuration of the window, cap, or other prominent part to distinguish them from fuses of higher ampere ratings.

240.50(C) hexagonal

NEC Reference: [ref] Plug fuses of the Edison-base type shall be classified at not over 125 volts and [ans] (current) and below.</p?

240.51(A) 30 amperes

NEC Reference: [ref] Every circuit breaker having an interrupting rating other than [ans] (current) shall have its interrupting rating shown on the circuit breaker.

240.83(C) 5 kA

Where the supplemental electrode is a single made electrode and does not have a resistance to ground of [ans] ohms or less, it must be bonded to an additional electrode.

25 250.53(A)(2)

NEC Reference: [ref] The supply-side bonding jumper shall not be smaller than the sizes shown in Table [ans] for grounding electrode conductors.

250.102(C)(1) 250.102(C)(1)

A feeder grounded conductor shall be sized accordance with Table. [ans1] and the equipment grounding conductor as per Table [ans2].

250.102(C)(1) 250.122 NEC 250.102 NEC 250.122

NEC Reference: [ref] What size copper equipment bonding jumper is required for a 200-ampere panelboard located on the load side of the overcurrent device? (The conductors feeding the panelboard are 3/0 AWG copper conductors.) Answer: [ans]

250.102(D) 6 AWG

NEC Reference: [ref] Where an equipment bonding jumper is installed on the outside of a raceway, the length shall not exceed [ans] (distance) and shall be routed with the raceway or enclosure.

250.102(E)(2) 6'

When equipment grounding conductors are installed in parallel, each equipment grounding conductor shall be sized according to Table [ans].

250.122 310.10(G)(5) Equipment Grounding Conductors. Where parallel equipment grounding conductors are used, they shall be sized in accordance with 250.122. Sectioned equipment grounding conductors smaller than 1/0 AWG shall be permitted in multi‐ conductor cables, if the combined circular mil area of the sectioned equipment grounding conductors in each cable complies with 250.122.

NEC Reference: [ref] Which of the following is not a true statement concerning an equipment grounding conductor? Under certain conditions, equipment grounding conductors shall be required to be larger than circuit conductors supplying the equipment. One equipment grounding conductor may serve multiple circuits. Under certain conditions, equipment grounding conductors may be run in parallel. The size of equipment grounding conductors shall be increased where ungrounded conductors are increased in size. Answer: [ans] (letter only)

250.122 a. Under certain conditions, equipment grounding conductors shall be required to be larger than circuit conductors supplying the equipment.

NEC Reference: [ref] In nonmetallic-sheathed cable, the equipment grounding conductor for 15-, 20-, and 30-ampere branch circuits [ans] (letter only). is required only with aluminum or copper-clad aluminum cable must be the same size as the insulated circuit conductors may be one size smaller than the insulated circuit conductors may be two sizes smaller than the insulated circuit conductors

250.122(A) b. must be the same size as the insulated circuit conductors

NEC Reference: [ref] A grounding ring encircling the building, in direct contact with the earth, must consist of at least [ans] (distance) of bare copper conductor not smaller than 2 AWG.

250.52(A)(4) 20'

NEC Reference: [ref] If a single rod, pipe, or plate grounding electrode has a resistance to earth of [ans] or less, a supplemental grounding electrode shall not be required.

250.53(A)(2) 25 ohms

NEC Reference: [ref] Where more than one grounding electrode is used, each electrode of one grounding system (including that used for strike termination devices) shall not be less than [ans] (distance) from any other electrode of another grounding system.

250.53(B) 6'

NEC Reference: [ref] Bonding jumpers meeting the other requirements of this article shall be used around impaired connections, such as reducing washers or oversized [ans], or eccentric knockouts.

250.92(B) concentric

A multi-family dwelling unit contains [ans] or more dwelling units.

3 NEC 100

The minimum unit load, per square foot, for a one-family or two-family residence is [ans] va.

3 NEC 220.14(J)

A continuous load is where the maximum current is expected to continue for [ans1] (time) or more. The conductors supplying the load must be rated at [ans2]% and the load cannot exceed [ans3]% of the rating of the circuit.

3 hours 125 80% NEC 100 NEC 210.20(A)

Track lighting shall not be installed within the zone measured [ans1] feet horizontally and [ans2] feet vertically from the top of the bathtub rim.

3' 8' 410.10(D)(1) No parts of cord-connected luminaires, chain-, cable-, or cord-suspended luminaires, lighting track, pendants, or ceiling-suspended (paddle) fans shall be located within a zone measuring 900 mm (3 ft) horizontally and 2.5 m (8 ft) vertically from the top of the bathtub rim or shower stall threshold. This zone is all encompassing and includes the space directly over the tub or shower stall.

The recommended voltage drop for a branch circuit is ____ % or less.

a. 3

Working space illumination shall not be ____.

b. controlled by automatic means

The width of working space in front of equipment shall be [ans] (distance) or the width of the electrical equipment, whichever is greater.

30" 110.26(A)(2)

Because an auxiliary gutter is used'to supplement wiring space, it is not a raceway and shall not extend a distance greater than [ans] feet beyond the equipment it supplements.

30' 366.12 Uses Not Permitted. Auxiliary gutters shall not be used: To enclose switches, overcurrent devices, appliances, or other similar equipment To extend a greater distance than 9 m (30 ft) beyond the equipment that it supplements Exception: As permitted in 620.35 for elevators, an auxiliary gutter shall be permitted to extend a distance greater than 9 m (30 ft) beyond the equipment it supplements Informational Note: For wireways, see Articles 376 and 378. For busways, see Article 368.

Snap switches shall not be grouped or gaged in enclosures unless they can be arranged so that the voltage between adjacent switches does not exceed, [ans] volts unless barriers are present.

300 V 404.8(B) Voltage Between Adjacent Devices. A snap switch shall not be grouped or ganged in enclosures with other snap switches,receptacles, or similar devices, unless they are arranged so that the voltage between adjacent devices does not exceed 300 volts, or unless they are installed in enclosures equipped with identified, securely installed barriers between adjacent devices.

NEC Reference: [ref] The continuity of a grounded conductor shall not be dependent on the device in [ans] (letter only). branch circuits not having a grounded conductor multiwire branch circuits individual branch circuits branch circuits

300.13(B) b. multiwire branch circuits

NEC Reference: [ref] Where nonmetallic boxes are used with open wiring or concealed knob-and-tube wiring, the conductors must enter the box through [ans].

314.17(B)(1) individual holes

Which Article.Section [ans] requires there to be 6" of free conductor at an outlet box.

300.14 300.14 Length of Free Conductors at Outlets, Junctions, and Switch Points. At least 150 mm (6 in.) of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, shall be left at each outlet, junction, and switch point for splices or the connection of luminaires or devices. Where the opening to an outlet, junction, or switch point is less than 200 mm (8 in.) in any dimension, each conductor shall be long enough to extend at least 75 mm (3 in.) outside the opening.

NEC Reference: [ref] At least [ans] (distance) of free conductor (measured from the point in the conduit body where it emerges from its raceway or cable sheath) shall be left at each outlet, junction, and switch point.

300.14 6"

NEC Reference: [ref] At least [ans] (distance) of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, shall be left at each outlet, junction, and switch point for splices or the connection of luminaires or devices.

300.14 6"

NEC Reference: [ref] In vertical raceways, 3/0 AWG aluminum conductors must be supported if the vertical rise is greater than [ans] (distance).

300.19(A) 180'

NEC Reference: [ref] Where conductors carrying alternating current are installed in ferrous metal raceways, they shall be so arranged as to avoid heating the surrounding metal by [ans].

300.20(A) induction

NEC Reference: [ref] In both exposed and concealed locations, where a cable or raceway-type wiring method is installed through bored holes in joist, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than [ans] (distance) from the nearest edge of the wood member.

300.4(A)(1) 1.25"

NEC Reference: [ref] In both exposed and concealed locations, where a cable or raceway-type wiring method is installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than [ans] (distance) from the nearest edge of the wood member.

300.4(A)(1) 1.25"

NEC Reference: [ref] In both exposed and concealed locations where nonmetallic-sheathed cables pass through either factory- or field-punched, cut, or drilled slots or holes in metal members, the cable shall be protected by [ans] or listed grommets covering all metal edges that are securely fastened in the opening prior to installation of the cable.

300.4(B)(1) listed bushings

NEC Reference: [ref] Where installed in raceways, conductors [ans] and larger, not specifically permitted or required elsewhere in the NEC to be solid, shall be stranded.

310.3(C) 8 AWG

NEC Reference: [ref] [ans] is a single or multiconductor solid dielectric insulated cable rated 2001 volts up to and including 35,000 volts, nominal.

311.2 Medium Voltage Cable

NEC Reference: [ref] In damp or wet locations, surface-type cabinets, cutout boxes, and meter socket enclosures shall be so placed or equipped as to prevent moisture or water from entering and accumulating within them, and mounted so there is at least [ans] (distance) airspace between the enclosure and the wall or other supporting surface.

312.2 1/4"

NEC Reference: [ref] In damp or wet locations, surface-type enclosures (within the scope of Article 312) shall be so placed or equipped as to prevent moisture or water from entering and accumulating within the cabinet or cutout box and shall be mounted so there is at least [ans] (distance) airspace between the enclosure and the wall or other supporting surface.

312.2 1/4"

NEC Reference: [ref] An electrician needs to install a surface-mounted, nonmetallic, weatherproof cabinet on the outside of a concrete block building. Since the cabinet must be mounted in a wet location, it must be mounted so there is at least [ans] (distance) of airspace between the cabinet and the wall.

312.2 Exception 0"

NEC Reference: [ref] A 2½-in. rigid metal conduit enters the back of a pull box with a removable cover on the opposite side. The raceway encloses four 4/0 AWG THHN copper conductors and one 4 AWG equipment grounding conductor. The minimum depth (distance from the entry wall to the cover) for this pull box is [ans] (distance).

312.6(A) 4"

NEC Reference: [ref] Approved drainage openings not smaller than [ans_min] (directions) and not larger than [ans_max] (directions) in diameter shall be permitted to be installed in the field in boxes or conduit bodies listed for use in damp or wet locations.

314.15 1/8" 1/4"

NEC Reference: [ref] What is the maximum number of 12 AWG THW conductors permitted in a 4-in. octagon box that is 1½ in. deep? (The box contains a fixture stud and a hickey.) Answer: [ans] (number only)

314.16(B)(4) 4

NEC Reference: [ref] A switch rated for 20 amps will be installed in a device box beside a switch rated for 15 amps. Two 12 AWG THHN copper conductors will be terminated onto the switch rated 20 amps and two 14 AWG THHN copper conductors will be terminated onto the switch rated 15 amps. The required volume allowance for the switch rate 20 amps is [ans_20A] (volume) and the required volume allowance for the switch rate 15 amps is [ans_15A] (volume).

314.16(B)(4) 4.5 cubic in 4 cubic in

NEC Reference: [ref] Installations within or behind a surface of concrete, tile, gypsum, plaster, or other noncombustible material, including boxes employing a flush-type cover or faceplate, shall be made so that the front edge of the box, plaster ring, extension ring, or listed extender will not be set back of the finished surface more than [ans] (distance).

314.20 1/4"

NEC Reference: [ref] A weatherproof metal junction box measuring 4 in. × 4 in. × 6 in. has been installed to support a luminaire. Two rigid metal conduits have been threaded wrenchtight into the threaded entries of the enclosure. The box has not yet been secured to the brick wall, but both conduits have been strapped to the wall 16 in. from the box. What additional support (from the following list) is required for this box? Two metal screws with plastic anchors Two toggle bolts Two drive pins none I or II only I or III only I, II, or III Answer: [ans] (letter only)

314.23(F) a. none

NEC Reference: [ref] Outlet boxes that do not enclose devices or utilization equipment shall have a minimum internal depth of [ans] (distance).

314.24(A) 1/2"

NEC Reference: [ref] Luminaires weighing no more than [ans] (weight) can be supported by boxes (such as device boxes) not specifically designed to support luminaires, provided the luminaire, or its supporting yoke, is secured to the box with at least two No. 6 or larger screws.

314.27(A)(1) Exception 6Ib

NEC Reference: [ref] A luminaire that weighs more than [ans] (weight) shall be supported independently of the outlet box, unless the outlet box is listed and marked on the interior of the box to indicate the maximum weight the box shall be permitted to support.

314.27(A)(2) 50 lb

NEC Reference: [ref] Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended (paddle) fan shall be listed, shall be marked by their manufacturer as suitable for this purpose, and shall not support ceiling-suspended (paddle) fans that weigh more than [ans] (weight).

314.27(C) 70 lb

NEC Reference: [ref] In pull boxes or junction boxes having any dimension over [ans] (letter only), all conductors shall be cabled or racked up in an approved manner. 6" 12" 36" 72"

314.28 d. 72"

NEC Reference: [ref] What are the minimum dimensions for "X" and "Y" in the drawing below?

314.28(A) 24" 12"

NEC Reference: [ref] Where the same 4 AWG conductor enters and then exits a wireway through conduit or tubing, the distance between those raceway entries shall not be less than [ans] (number only) times the trade diameter of the larger raceway.

314.28(A)(2) 6

NEC Reference: [ref] Where permanent barriers are installed in a junction box, each section shall be considered as a(n) [ans] box.

314.28(D) separate

NEC Reference: [ref] Boxes and conduit bodies in buildings shall be installed so the contained wiring can be [ans] without removing any part of the building or structure.

314.29(A) accessed

NEC Reference: [ref] The minimum thickness in inches for a steel box measuring 6 in. x 4 in. x 3½ in. is [ans] (distance).

314.40(B) .0625"

NEC Reference: [ref] A means must be provided in each metal box for the connection of a(n) [ans].

314.40(D) equipment grounding conductor

NEC Reference: [ref] Covers of outlet boxes and conduit bodies having holes through which flexible cord pendants may pass shall be provided with approved [ans] or shall have smooth, well-rounded surfaces on which the cord may bear.

314.42 bushings

NEC Reference: [ref] For straight pulls, the length of the box shall not be less than [ans] (number only) times the outside diameter, over sheath, of the largest shielded conductor or cable entering the box on systems over 1000 volts, nominal.

314.71(A) 48

NEC Reference: [ref] Where run across the top of floor joists or within [ans] (distance) of the floor or floor joists across the face of rafters or studding, in an attic that has permanent stairs, nonmetallic-sheathed cable must be protected by substantial guard strips that are at least as high as the cable.

320.23(A) 7' Section 334.23 states that nonmetallic-sheathed cable installed in attics must comply with 320.23.

NEC Reference: [ref] Type AC cable shall be supported and secured by staples; cable ties listed, and identified for securement and support; straps, hangers, or similar fittings; or other approved means at intervals not exceeding [ans] (distance).

320.30(C) 4.5'

NEC Reference: [ref] Type AC cable shall be permitted to be unsupported where the cable is not more than [ans] (letter only) in length at terminals where flexibility is necessary. 2 inches 6 inches 24 inches 72 inches

320.30(D)(2) c. 24 inches

NEC Reference: [ref] Armored cable installed in thermal insulation shall have conductors rated at [ans] (letter only). The ampacity of the cable installed in these applications shall not exceed that of a 60ºC-rated conductor. 60ºC 75ºC 90ºC 120ºC

320.80(A) c. 90ºC

NEC Reference: [ref] In FCC systems, general-purpose and appliance branch circuits have a maximum current rating of [ans_app] (current), while individual branch circuits have a maximum current rating of [ans_ind] (current).

324.10(B)(2) 20 A 30 A

NEC Reference: [ref] Type FCC cable shall be clearly and durably marked on both sides at intervals of not more than 24 in. with the information required by 310.8(A) and with what additional information? Material of conductors and ampacity Rated frequency and number of phases Maximum temperature rating I only I and II only I and III only I, II, and III [ans] (letter only)

324.120(A) c. I and III only

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

b. dead front

NEC Reference: [ref] Power feed, grounding connection, and shield system connection between the FCC system and other wiring systems shall be accomplished in a(n) [ans] identified for this use.

324.40(D) transition assembly

NEC Reference: [ref] The minimum bending radius for integrated gas spacer cable with an integral trade size 3-in. conduit is [ans] (distance).

326.24 35"

A conduit installed less than ¾" above a roof must have a temperature adder of [ans]°C added to the outdoor temperature.

33 310.15(B)(2) Rooftops. For raceways or cables exposed to direct sunlight on or above rooftops where the distance above the roof to the bottom of the raceway or cable is less than 23 mm (⅞ in.), a tempera ture adder of 33°C (60°F) shall be added to the outdoor temperature to determine the applicable ambient temperature for application of the correction factors in Table 310.15(B)(1) or Table 310.15(B)(2).

NEC Reference: [ref] [ans] is a factory assembly of one or more insulated circuit conductors with or without optical-fiber members enclosed in an armor of interlocking metal tape or a smooth or corrugated metallic sheath.

330.2 Metal Clad Cable

NEC Reference: [ref] The minimum bending radius for metal-clad (corrugated sheath) cable is [ans] (number only) times the external diameter of the metallic sheath.

330.24(B) seven

NEC Reference: [ref] [ans] is a factory assembly of one or more conductors insulated with a highly compressed refractory mineral insulation and enclosed in a liquidtight and gastight continuous copper or alloy steel sheath.

332.2 Type MI

NEC Reference: [ref] Type MI cable shall be supported securely at intervals not exceeding [ans] (distance) by straps, staples, hangers, or similar fittings designed and installed so as not to damage the cable.

332.30 6'

NEC Reference: [ref] Where Type MI cable terminates, a seal shall be provided immediately after stripping to prevent the entrance of [ans] into the insulation.

332.40(B) moisture

NEC Reference: [ref] Where nonmetallic-sheathed cable is run at angles with joists in unfinished basements, it shall be permissible to secure cables not smaller than three [ans] (letter only) AWG conductors directly to the lower edges of the joists. 12 10 8 6

334.15(C) c. 8 two 6 AWG or three 8 AWG conductors

NEC Reference: [ref] Nonmetallic-sheathed cable must be secured within [ans] (distance) from a two-gang plastic device box mounted in a wall.

334.30 12"

NEC Reference: [ref] The overall covering of Type UF cable shall be [ans] (letter only). flame retardant suitable for direct burial in the earth moisture-, fungus-, and corrosion-resistant II only I and II only II and III only I, II, and III

340.116 d. I, II, and III

NEC Reference: [ref] Where practicable, contact between dissimilar metals anywhere in the system shall be avoided to eliminate the possibility of [ans].

342.14 galvanic action

NEC Reference: [ref] RMC, elbows, couplings, and fittings shall be permitted to be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences where protected by [ans] approved for the condition.

344.10(B)(1) corrosion protection

NEC Reference: [ref] Most conduit and tubing type raceways have a maximum equivalent of four [ans] bends between pull points, for example, conduit bodies and boxes.

344.26 quarter

NEC Reference: [ref] All cut ends of conduits shall be reamed or otherwise finished to remove rough edges. Where conduit is threaded in the field, a standard cutting die with a [ans] (distance) taper per ft (1 in 16) shall be used.

344.28 3/4"

NEC Reference: [ref] What is the maximum distance between supports for a straight run of 2-in. IMC made up with threaded couplings? Answer: [ans] (distance)

344.30(B)(2) 16'

Flexible metal conduit installed through wood members must comply with Article.Section [ans].

348.30(B) 300.4(G) Insulated Fittings. Where raceways contain 4 AWG or larger insulated circuit conductors, and these conductors enter a cabinet, a box, an enclosure, or a raceway, the conductors shall be protected be protected in accordance with any of the following: An identified fitting providing a smoothly rounded insulating surface A listed metal fitting that has smoothly rounded edges Separation from the fitting or raceway using an identified insulating material that is securly fastened in place Threaded hubsor bosses that are an integral part of a cabinet, box, enclosure, or raceway proving a smoothly rounded ir flared entry for conductors

NEC Reference: [ref] The [ans] for the controlled lighting circuit shall be installed at the location where switches control lighting loads that are supplied by a grounded general-purpose branch circuit serving bathrooms, hallways, stairways, and habitable rooms or occupiable spaces as defined in the applicable building code.

404.2(C) grounded circuit conductor

NEC Reference: [ref] All switches shall be installed such that the center of the grip of the operating handle of the switch, when in its highest position, is not more than [ans] (distance) above the floor or working platform.

404.8(A) 6'-7"

NEC Reference: [ref] Grounding-type receptacles shall be installed only on circuits of the [ans] (letter only) for which they are rated, except as provided in Tables 210.21(B)(2) and (B)(3). voltage class wattage current I only I and III only I and II only I, II, and III

406.4(A) b. I and III only

NEC Reference: [ref] A nongrounding-type receptacle has been replaced with a new grounding-type duplex receptacle. The 15-ampere circuit breaker feeding the circuit has been replaced with a 15-ampere ground-fault circuit breaker. The new receptacle or its cover plate must be marked [ans] (letter only) and be visible after installation. "Two-Wire Circuit" "No Equipment Ground" "GFCI Protected" III only I and III only II and III only I, II, and III

406.4(D)(2)(c) c. II and III only

NEC Reference: [ref] In addition to the requirement of 408.30, a panelboard shall be protected by an overcurrent protective device having a rating not greater than that of the [ans].

408.36 panelboard

NEC Reference: [ref] Every circuit and circuit modification in a panelboard shall be legibly identified as to its clear, evident, and [ans] purpose or use.

408.4(A) specific

NEC Reference: [ref] Hanging luminaires located directly above any part of the bathtub shall be installed so that the luminaire is not less than [ans] above the top of the bathtub rim.

410.10(D) 8'

NEC Reference: [ref] Luminaires shall be constructed or installed so that adjacent combustible material will not be subjected to temperatures in excess of [ans]°Fahrenheit.

410.11 194

NEC Reference: [ref] A recessed incandescent luminaire with a completely enclosed light source installed in the ceiling of a clothes closet must have a minimum clearance of [ans] (distance) between the luminaire and the nearest point of the closet storage space.

410.16(C)(3) 6"

NEC Reference: [ref] The maximum length cord permitted on a built-in dishwasher is [ans] (distance).

422.16(B)(2)(2) 6.5'

NEC Reference: [ref] A permanently connected dishwasher has a nameplate rating of 780 volt-amperes. The circuit breaker is permitted to serve as the disconnecting means where it is: I. within sight from the dishwasher. II. lockable in accordance with 110.25. III. capable of being locked in the closed position. I only I or III only I or II only I, II, or III

422.31(B) I or II only

Using the Optional calculation method, what is the demand factor percent for 10 multi-family dwelling units? [ans]%

43% NEC Table 220.84

NEC Reference: [ref] A disconnecting means serving a hermetic refrigerant motor compressor shall be selected on the basis of the nameplate rated-load current or branch-circuit selection current, whichever is greater, and locked-rotor current, respectively, of the motor compressor. The ampere rating shall be at least [ans] of the nameplate rated-load current or branch-circuit selection current,

440.12(A)(1) 115 percent

Additional load calculation information for phase converters can be found in Article [ans].

455 NEC 220.3 NEC Table 220.3

Article 220 has how many parts? [ans] (number)

5 NEC 220

Ground rods made of zinc coated steel must be at least [ans] of an inch in diameter.

5/8" 250.52(A)(5)(b)

Where the outlet box provides adequate support, a fixture weighing up to [ans] pounds maybe supported by the outlet box.

50 Ib 314.27 Outlet Boxes. (A) Boxes at Luminaire or Lampholder Outlets. Outlet boxes or fittings designed for the support of luminaires and lamp‐holders, and installed as required by 314.23, shall be permitted to support a luminaire or lampholder. Vertical Surface Outlets. Boxes used at luminaire or lampholder outlets in or on a vertical surface shall be identified and marked on the interior of the box to indicate the maximum weight of the luminaire that is permitted to be supported by the box if other than 23 kg (50 lb). Exception: A vertically mounted luminaire or lampholder weighing not more than 3 kg (6 lb) shall be permitted to be supported on other boxes or plaster rings that are secured to other boxes, provided that the luminaire or its supporting yoke, or the lampholder, is secured to the box with no fewer than two No. 6 or larger screws. Ceiling Outlets. At every outlet used exclusively for lighting, the box shall be designed or installed so that a luminaire or lampholder may be attached. Boxes shall be required to support a luminaire weighing a minimum of 23 kg (50 lb). A luminaire that weighs more than 23 kg (50 lb) shall be supported independently of the outlet box, unless the outlet box is listed for not less than the weight to be supported. The interior of the box shall be marked by the manufacturer to indicate the maximum weight the box shall be permitted to support.

Every circuit breaker having an interrupting rating other than [ans] amperes shall have the rating shown on the circuit breaker.

5000 A 240.83(C)

An insulated grounded conductor of __________ AWG or smaller shall be identified by a continuous white or gray outer finish along its entire length.

6 200.6(A)(1) or (A)(2)

Type MC cable shall be supported and secured at intervals not exceeding [ans] feet.

6' 330.30(C) Supporting. Unless otherwise provided, cables shall be supported at intervals not exceeding 1.8 m (6 ft). Horizontal runs of Type MC cable installed in wooden ormetal framing members or similar supporting means shall be considered supported and secured where such support does not exceed 1.8 m (6 ft) intervals.

GFCI protection is required for receptacles installed within [ans] (distance) of a shower stall.

6' NEC 210.8(A)(9)

A feeder conductor to a panel board is # 6 TW wire. The maximum size over current protection for this conductor is [ans] amps.

60 Using Table 310,15(B)(16), 6 TW wire has an allowable ampacity of 55 amperes. According to Table 240.6(A) there is not a standard OCPD ( Over Current Protection Device) for 55 amperes and the next largest size is 60 amperes.

Termination temperature ratings for equipment rated at 100 amps or less shall be [ans_under] degree C and equipment rated over 100 amps shall be rated at [ans_over] degree C.

60 75 110.14(C)(1)(a) and (C)(1)(b)

A ¾ inch listed liquid tight flexible metal conduit with fittings listed for grounding can be used as a grounding path when the conductors are protected by an over current protection device of no more than [ans1] amps if the over length of the conduit is less than [ans2] feet.

60 amperes 6' 250.118(C)(6) Listed liquidtight flexible metal conduit meeting all the following conditions: The conduit is terminated in listed fittings. For metric designators 12 through 16 (trade sizes ⅜ through ½), the circuit conductors contained in the conduit are protected by overcurrent devices rated at 20 amperes or less. For metric designators 21 through 35 (trade sizes ¾ through 1¼), the circuit conductors contained in the conduit are protected by overcurrent devices rated not more than 60 amperes and there is no flexible metal conduit, flexible metallic tubing, or liquid‐tight flexible metal conduit in trade sizes metric designators 12 through 16 (trade sizes ⅜ through ½) in the ground-fault current path. The combined length of flexible metal conduit and flexible metallic tubing and liquidtight flexible metal conduit in the same ground-fault current path doesnot exceed 1.8 m (6 ft). If used to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment or to provide flexibility for equipment that requires movement after installation, an equipment grounding conductor shall be installed.

The lighting load demand factor for a motel for the first 20,000 va is [ans]%.

60% Table 220.42

A demand factor of [ans]% shall be allowed for 7 household electric dryers.

65 NEC Table 220.54

Where eight current carrying conductors are installed in a raceway, their value shall be corrected to a value of [ans]% of their allowable ampacity.

70 Table 310.15(C)(1)

Track lighting load, per linear foot, is calculated at [ans] va.

75 NEC 220.42(B)

It shall be permissible to apply a demand factor of [ans]% to the nameplate rating load of four or more appliances fastened in place.

75 NEC 220.53

Conductors, including splices and taps, shall not fill the auxiliary gutter to more than [ans] percent of its cross-sectional area.

75% 366.56 Splices and Taps. Splices and taps shall comply with 366.56(A) through (D). (A) Within Gutters. Splices or taps shall be permitted within gutters where they are accessible by means of removable covers or doors. The conductors, including splices and taps, shall not fill the gutter to more than 75 percent of its area. (B) Bare Conductors. Taps from bare conductors shall leave the gutter opposite their terminal connections, and conductors shall not be brought in contact with uninsulated current-carrying parts of different voltages (C) Suitably Identified. All taps shall be suitably identified at the gutter as to the circuit or equipment that they supply. (D) Overcurrent Protection. Tap connections from conductors in auxiliary gutters shall be provided with overcurrent protection as required in 240.21.

Where installed in raceways, conductors of size number [ans] and larger shall be stranded.

8 AWG 310.3(C) Stranded Conductors. Where installed in raceways, conductors 8 AWG and larger shall be stranded, unless specifically permitted or required elsewhere in this Code to be solid.

A 12 kw range has a demand factor of [ans1] kw and a 6 kw cooktop a demand factor of [ans2]%.

8 kW 80% NEC Table 220.55

The protecting of emerging underground cables extends from minimum cover below grade up to [ans] feet above grade.

8' 300.5(D)(1) Emerging from Grade. Direct-buried conductors and cables emerging from grade and specified in columns 1 and 4 of Table 300.5 shall be protected by enclosures or raceways extending from the minimum cover distance below grade required by 300.5(A) to a point at least 2.5 m (8 ft) above finished grade. In no case shall the protection be required to exceed 450 mm (18 in.) below finished grade.

Ground rods must have a minimum of [ans] feet of soil contact.

8' 250.53(G)

On a single family dwelling service, the conductors are allowed to be sized at [ans]% of the service rating.

83% 310.12(A) Services. For a service rated 100 amperes through 400 amperes, the service conductors supplying the entire load associated with a one-family dwelling, or the service conductors supplying the entire load associated with an individual dwelling unit in a two-family or multifamily dwelling, shall be permitted to have an ampacity not less than 83 percent of the service rating. If no adjustment or correction factors are required, Table 310.12 shall be permitted to be applied.

A 75°C rated conductor installed in a 100°F environment must be corrected by a factor of [ans]%.

88% Table 310.15(B)(1)

The equivalent of ____ is the maximum allowed between pull points.

d. four quarter bends (360° total)

Conductor sizes are expressed in [ans] or in circular mils.

AWG 110.6

Ground fault protection is required for the feeder disconnect if:

All of the above NEC 215.10

The continuous current carrying capacity of electric conductors, expressed in amperes, is referred to as the conductor's [ans] rating.

Ampacity NEC 100

NEC Reference: [ref] The cross-sectional area of 2-in. EMT is [ans] (area).

Chapter 9, Table 4 3.356 sqin

If there is limited space in a small dwelling, the service disconnect is permitted to be installed in the bathroom if the disconnect has a "damp location" rating.

False NEC 230.70(A)(2)

The National Electrical Code (NEC) is:

For the practical safeguarding of persons and property 90.1(A)

In office buildings, the receptacle load shall be based on:

Larger of A or B 220.14(K)

The conductor that connects the grounded conductor to the equipment grounding conductor at the service is called the [ans] (2 words) jumper.

Main bonding According to Article 100, the "Bonding Jumper, Main" is the connection between the grounded circuit conductor and the equipment grounding conductor at the service.

NEC Reference: [ref] A nonmetallic-sheathed cable, passing through a bored hole less than 1¼ in. from the edge of a wood framing member, must be protected by a steel plate (or bushing) at least [ans] (distance) thick.

May be wrong 300.49(A)(1) 1/16"

NEC Reference: [ref] Type UF cable, buried underground, fed from a 15-ampere, ground-fault circuit interrupter at a one-family dwelling must have a minimum cover of [ans] (letter only). 6 inches 12 inches 18 inches 24 inches

May be wrong 300.50 b. 12 inches

NEC Reference: [ref] Floor-mounted Type FCC cable, cable connectors, and insulating ends shall be covered with carpet squares no larger than [ans] (area).

May be wrong 324.41 39.37"

NEC Reference: [ref] Type MC cable must be supported (and secured) at intervals not exceeding [ans] (letter only). 4½ inches 6 inches 54 inches 72 inches

May be wrong 330.30(B) b. 6 inches

NEC Reference: [ref] The maximum ampacity of a 500-kcmil, integrated gas-spacer cable (Type IGS) is [ans] (current).

May not be right 326.80 168

Formal interpretations of the NEC® are governed by ____.

NFPA

Cables running across the top of floor joists must be protected by _____.

d. guard strips

NEC Reference: [ref] A duplex receptacle rated 20 amperes can be installed on a [ans] (letter only) branch circuit. 15-ampere 20-ampere 15- or 20-ampere 20- or 25-ampere

Table 210.21(B)(3) b. 20-ampere

NEC Reference: [ref] A 15-ampere rated duplex receptacle may be installed on a [ans] (letter only) branch circuit. 15-ampere 20-ampere 15- or 20-ampere 15-, 20-, or 25-ampere

Table 210.21(B)(3) c- 15-or 20 ampere

NEC Reference: [ref] A duplex receptacle rated 15 amperes can be installed on a [ans] (letter only) general-purpose branch circuit. 15-ampere 20-ampere 15- or 20-ampere 20- or 25-ampere

Table 210.21(B)(3) c. 15- or 20-ampere

NEC Reference: [ref] A single receptacle rated 50 amperes can be installed on a [ans] (letter only) individual branch circuit. 15- or 20-ampere 40-ampere 50-ampere 40- or 50-ampere

Table 210.21(B)(3) d. 40- or 50-ampere

NEC Reference: [ref] One cooktop and two ovens are connected to one branch circuit in a kitchen of a one-family dwelling. The cooktop has a nameplate rating of 4 kW at 240 volts, while each oven has a nameplate rating of 5.5 kW at 240 volts. The minimum load calculation for this branch circuit is [ans] (power).

Table 220.55, Note 4 9.2 kW

NEC Reference: [ref] What is the maximum ampacity for a 3 AWG THHN copper conductor where the temperature termination on one end is rated 75ºC and the rating of the temperature termination on the other end is unknown? The ambient temperature will not exceed 30ºC and there will be three current-carrying conductors in the raceway. Also, this installation will not exceed voltage drop recommendations.

Table 310.16 85 A

NEC Reference: [ref] How many 14 AWG THW conductors are permitted in a 3 in. x 2 in. x 2½ in. device box? Answer: [ans] (number only)

Table 314.16(A) 6

NEC Reference: [ref] A 4-11/16 in. square box that is 2-1/8 in. deep already contains two receptacles, two internal cable clamps, four 12 AWG THHN copper conductors (two black and two white), two grounding conductors, three wire nuts, two pigtails, and one equipment bonding jumper. (A flat plaster ring was used to secure the receptacles to the box.) How many more 12 AWG THHN copper conductors can be added to this box? Answer: [ans] (number only)

Table 314.16(A) 8

NEC Reference: [ref] How many 14 AWG THHN conductors, including an equipment grounding conductor, can be installed in a ⅜-in, flexible metal conduit using inside fittings? Answer: [ans] (number only)

Table 348.22 4

NEC Reference: [ref] What is the maximum number of 4 AWG THHN conductors permitted in 1¼-in. rigid metal conduit? Answer: [ans] (number only)

Table C.9 7

In the NEC, UL is the abbreviation for [ans].

Underwriters Laboratories

Wiring components are considered accessible when (1) access can be gained without damaging the structure or finish of the building or (2) they are ____.

a. not permanently closed in by the structure or finish of the building

PVC bends must be made so that the conduit remains undamaged and the internal diameter of the conduit is ____.

a. not reduced

Ready access to wiring in luminaires is ____.

a. not required

A minimum of ____ wall switch-controlled lighting outlet(s) is (are) required for dwelling hallways.

a. one

At least ____ wall switch-controlled lighting outlet(s) shall be installed in every habitable room of a dwelling.

a. one

You can use the nameplate rating to determine the branch-circuit conductor size and the overcurrent protection for ____.

a. one counter-mounted cooking unit

One-family dwellings require at least _____ installed at the front and back of the dwelling.

a. one receptacle outlet

A point in a wiring system from which current is taken to supply utilization equipment is known as a(n) ____.

a. outlet

Supporting screws for nonmetallic boxes must be mounted ____ unless the box is constructed in a manner that prevents contact between the conductors in the box and the supporting screws.

a. outside of the box

No requirement specifies the depth of a box, unless a ____.

a. raceway enters the rear of the box

All cut ends of IMC and RMC must be ____.

a. reamed

Interior stairways of ____ or more risers (steps) shall have a wall switch located at each floor level and landing level that includes an entryway.

a. six

Skin effect and induction change the resistance in alternating-current (ac) circuits; therefore, resistance of a conductor is ____.

a. slightly higher in an ac circuit

All conductors of a multiwire branch circuit must originate from ____.

a. the same panelboard or similar distribution equipment

The ampere rating of any circuit breaker rated at ____ amperes or less, and 1000 volts or less, must be molded, stamped, etched, or similarly marked into the handle or escutcheon area.

b. 100

Entrance cables must be supported within ____ of every raceway or enclosure connection.

b. 12 in. (300 mm)

A ____ rated receptacle outlet shall be installed at an accessible location for the servicing of equipment within a crawl space.

b. 125-volt, single-phase, 15- or 20-ampere

A ____ receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning, and refrigeration equipment.

b. 125-volt, single-phase, 15- or 20-ampere-rated

Branch circuits in kitchens should be ____-ampere circuits.

b. 20

Tap conductors from a 50-ampere branch circuit must have an ampacity of at least ____ and not less than the ampacity of the individual unit served.

b. 20

Listed flexible metal conduit can serve as a grounding means if certain conditions are met. One of these conditions is that the circuit conductors contained therein must be protected by overcurrent devices rated at _____.

b. 20 amperes or less

The weight supported by any single conduit shall not exceed ____.

b. 20 pounds (9 kg)

Laundry receptacle outlet(s) must be fed from a ____ branch circuit.

b. 20-ampere

What is the angle pull for a raceway in the horizontal dimension where the trade size of the largest raceway is 3 in. and the sum of the other raceways in the same row on the same wall is 4 in.?

b. 22 in.

What is the angle pull for a raceway in the vertical dimension where the trade size of the largest raceway is 4 in. and the sum of the other raceways in the same row on the same wall is 5 in.?

b. 29 in.

A receptacle outlet for a specific appliance, such as laundry equipment, shall be installed within ____ of the intended location of the appliance.

b. 6 ft (1.8 m)

The ____ is the organization, office, or individual responsible for enforcing the requirements of a code.

b. AHJ

____ or fewer luminaire wires (smaller than 14 AWG) and an equipment grounding conductor can be omitted from box fill calculations if they enter a box from a domed luminaire (or similar canopy) and terminate within that box.

b. Four

Electric metal tubing (EMT) provides protection from ____.

b. all but severe physical damage

A detached garage with electric power must have ____.

b. at least one wall switch-controlled lighting outlet

A widely accepted practice is to identify 3-phase ungrounded (hot) conductors as ____ in 208/120 volt, 4-wire, wye-connected systems.

b. black, red, and blue

Underfloor raceway dead ends must be ____.

b. closed

A grounding electrode is a(n) ____ object that establishes a direct connection to earth.

b. conducting

To calculate the minimum number of 15-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

b. divide by 15 and round up to obtain the number of circuits

Kitchen receptacles not serving countertops (such as receptacles behind refrigerators) ____ unless they are installed within 6 ft (1.8 m) of the outside edge of the sink.

b. do not require GFCI protection

Type USE cable used for service laterals can ___ provided 300.5(D) protection requirements are met.

b. emerge aboveground at outside terminations

Article 100 defines raceway as a(n) ____designed expressly for holding wires, cables, or busbars.

b. enclosed channel of metallic (or nonmetallic) materials

The definition for intermediate metal conduit (IMC) and rigid metal conduit (RMC) is ____.

b. essentially the same

Type AC cable shall have a(n) ____.

b. flexible metal tape armor

The arrangement of grounding connections shall be such that the disconnection or removal of a device fed from the box will not interfere with the ____.

b. grounding continuity

Receptacles, unless listed as receptacle assemblies for installation in countertop or work surface applications, shall not be installed ____ in countertops or similar work surfaces.

b. in a face-up position

Where a box contains both straight and angle (or U) pulls, or straight pulls and splices, you should calculate each type of pull ____ to find the dimension.

b. individually

Electrical blueprints (floor plans) ____ on a one-family dwelling.

b. may be optional

The voltage rating of circuit breakers must be clearly marked and ____.

b. no less than the nominal system voltage

The bathtub zone refers to an area within which ____.

b. no parts of cord-connected luminaires or ceiling-suspended (paddle) fans are permitted

The most common wiring type installed in one-family dwellings is ____.

b. nonmetallic-sheathed cable

At least one wall switch-controlled lighting outlet is required to provide illumination ____.

b. on the exterior side of an outside entrance or exit with grade-level access

A key provision found in most of the cable articles states that the cable must not be installed where subject to ____.

b. physical damage

All electric equipment must be ____ to allow ready and safe equipment operation and maintenance.

b. surrounded by sufficient unobstructed space

Dwelling-unit branch circuits shall supply only loads within, or associated with, ____.

b. that dwelling unit

Wireways are ____ with hinged or removable covers used to house and protect electric wires and cables.

b. troughs

A single-phase feeder (or branch circuit) conductor will have a total resistance ____ that of one conductor.

b. twice

Cartridge fuses and fuseholders are classified according to ____.

b. voltage and amperage ranges

A cable assembly's ____ conductor can be used as a switch loop (leg) in single-pole, three-way, and four-way switch installations, even though it is an ungrounded (hot) conductor.

b. white or gray

Generally, ungrounded (hot) conductors can be any color except ____.

b. white, gray, green, or, green with yellow stripe(s)

Ducts used to transport dust, loose stock, or flammable vapors shall not contain ____ of any type.

b. wiring systems

The main bonding jumper in the service is permitted to be a screw, wire or [ans].

bus According to 250.28(A), the main bonding jumper shall be a wire, bus, screw, or similar suitable conductor.

Panelboards include overcurrent devices as well as ____.

buses

Holes must be bored so that the edge of the hole is at least ____ from the nearest edge of the wood member.

c. 1 1/4 in. (32 mm)

The minimum approved electrical trade size for EMT is ____ in.

c. 1/2

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____ vertical clearance above finished grade , sidewalks, platforms, or projections that will permit personal contact.

c. 10-ft (3.0-m)

A 3- x 2-in. (75- x 50-mm) device box, 2.5 in. (65 mm) deep, has a volume of ____.

c. 12.5 in.3 (205 cm3)

The bathtub zone measures _____ from the top of the bathtub rim or shower stall threshold and includes the space directly over the tub.

c. 3 ft (900 mm) horizontally and 8 ft (2.5 m) vertically

Half-round and flat-top raceways not over 4 in. (100 mm) in width must be covered by ____ or more of concrete (or wood).

c. 3/4 in. (19 mm)

Voltage between overhead conductors does not exceed ____ volts.

c. 300

If each feeder is 100 amperes, the minimum conductor size is ____.

c. 4 AWG copper (or 2 AWG aluminum)

All switches shall be located so that they may be operated from a readily accessible place, not more than ___ from the floor to the center of the switch operating handle.

c. 6 ft, 7 in. (2.0 m)

Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended fan shall not support ceiling-suspended (paddle) fans that weigh more than ____.

c. 70 pounds (32 kg)

Nonmetallic-sheathed cable not fastened to the box must be secured within ____ of the box.

c. 8 in. (204 mm)

If supplied by an individual branch circuit, the rating of a cord- and attachment plug-connected room air conditioner can be no more than ____ of the circuit's ampere rating.

c. 80%

____ is the maximum number of disconnects per service.

c. Six

Surface nonmetallic raceways and their fittings must be designed so that sections can be mechanically coupled together and installed without subjecting the wires to ____.

c. abrasion

A(n) ____ or an accessible plug and receptacle can serve as the disconnecting means.

c. accessible separable connector

Conductors must have ____ and sufficient ampacity to carry the current for the load as calculated in accordance with Article 220.

c. adequate mechanical strength

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment) or by the ____.

c. exothermic welding process

Circuit breakers and fuses can be connected in parallel provided they are ____.

c. factory assembled and listed as a unit

NEC ® identifies ____ types of rigid PVC conduit.

c. five

Type AC cable must have a bending radius at least ____ times the diameter of the cable.

c. five

An arc-fault circuit interrupter (AFCI) provides protection from the effects of arc faults by ____ the circuit when an arc fault is detected.

c. functioning to de-energize

Contact of dissimilar metals (except for the combination of aluminum and steel) should be avoided wherever possible to lessen the potential for ____.

c. galvanic action

Concrete, brick, or tile walls are recognized as ____.

c. grounded

Raceways installed within drop ceilings must ____.

c. have secure support provided by the support wires and associated fittings

Cable installed under a building must be ____ unless the wiring method is Type MC or Type MI cable that is identified for direct burial.

c. in a raceway

All switchboards, switchgear, panelboards, distribution boards, and motor control centers must be located ____ and must be protected from damage.

c. in dedicated spaces

On long runs, it may be necessary to ____ to compensate for voltage drop.

c. increase the branch-circuit conductor's size

GFCI protection is required for receptacles installed to serve ____.

c. kitchen countertop surfaces

A single receptacle installed on a branch circuit with no other device or outlet shall have an ampere rating ____ of that circuit.

c. not less than the rating

Equipment grounding conductor(s) or equipment bonding jumpers entering a box count as ____ unless there are more than four equipment grounding conductors.

c. one conductor

Liquidtight flexible metal conduit (LFMC) is a raceway of circular cross section having a(n) ____ over an inner flexible metal core.

c. outer liquidtight, nonmetallic, sunlight-resistant jacket

Service conductors supplying a building (or other structure) shall not ____.

c. pass through the interior of another building

Fuseholders for current-limiting fuses must not ____.

c. permit insertion of non-current-limiting fuses

Attic spaces used for storage or containing equipment that may require servicing ____.

c. require one lighting outlet

Conduit body support must be ____.

c. rigid and secure

Laundry equipment receptacles ____.

c. shall not be counted as required garage receptacles

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

c. six

Box calculations for 4 AWG and larger conductors (1000 volts or less) are performed based on the ____.

c. size and number of raceways

Although not stipulated in the NEC ®, some local jurisdictions have adopted ____ for service conductors.

c. specific distance requirements

A disconnecting means is not required for appliances installed in a basement if ____.

c. the branch-circuit switch or circuit breaker is within 50 ft (15 m) and can be seen while working on the appliance

Raceway fill calculations are a prerequisite in determining ____ needed for particular circuits.

c. the size of raceway

A multifamily dwelling is a building containing ____ dwelling units.

c. three or more

Service-entrance and overhead service conductors shall be arranged so that ____.

c. water shall not enter the service raceway or equipment

A ____ in a cable can be used as an ungrounded conductor when supplying power to a switch, but not as a return conductor from the switch to the outlet.

c. white conductor

Communication equipment under exclusive control of the [ans] have their own wiring and equipment rules.

communication utilities 90.2(B)(4)

Grounded is the intentional connection to earth or to some [ans] body that serves in place of earth.

conducting In Article 100, "Grounded (Grounding)" is defined as connected to ground or to a conductive body that extends the ground connections.

Inspection of the connections between luminaire conductors and circuit conductors must be possible without ____.

d. having to disconnect any part of the wiring

The higher the resistance through a conductor, the ____.

d. higher the voltage drop

Parallel conductors installed in accordance with Article 310 must have all [ans] of the circuit installed in each raceway.

conductors 310.10(G)(3) Separate Cables or Raceways. Where run in separate cables or raceways, the cables or raceways with conductors shall have the same number of conductors and shall have the same electrical characteristics. Conductors of one phase, polarity, neutral, grounded circuit conductor, or equipment grounding conductor shall not be required to have the same physical char‐ acteristics as those of another phase, polarity, neutral, groun‐ ded circuit conductor, or equipment grounding conductor.

Bonding is the connection to achieve electrical [ans1] and [ans2].

continuity conductivity Article 100, defines "Bonded (Bonding)" as connected to establish electrical continuity and conductivity.

A drip loop's lowest point has a minimum vertical clearance of ____.

d. 10 ft (3.0 m)

Volume shall be marked on all nonmetallic boxes and boxes with a volume of ____ or less.

d. 100 in.3 (1650 cm3)

GFCI protection for personnel is required for every ____ receptacle located in the bathroom area.

d. 125-volt, single-phase, 15- and 20-ampere

If the overcurrent protection rating for an appliance is not marked and the appliance is rated over 13.3 amperes, the overcurrent protection shall not exceed ____% of the rated current.

d. 150

The maximum distance to any receptacle, measured horizontally along the wall line, is ____.

d. 24 in. (600 mm)

A luminaire that weighs more than ____ shall be supported independently of the outlet box, unless the outlet box is listed for not less than the weight to be supported.

d. 50 pounds (23 kg)

Conductors must have a vertical clearance of at least ____ above the roof surface.

d. 8 ft (2.4 m)

All receptacles installed to serve kitchen countertop surfaces shall have _____.

d. GFCI protection

____ luminaires are not permitted in a clothes closet.

d. Pendant

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

d. SE

____ are permitted inside conduit bodies, if the manufacturer durably and legibly marked the cubic inch capacity on the conduit body.

d. Splices, taps, or devices

____ should not be connected with flexible cords.

d. Water heaters

A crawl space or underfloor space must contain ____.

d. a disconnecting means for HVAC equipment

An outdoor receptacle, in a location protected from the weather or in other damp locations, requires ____ when the receptacle is covered.

d. an enclosure for the receptacle that is weatherproof

Protection is required for cables located within 6 ft (1.8 m) (measured both vertically and horizontally) of the ____.

d. attic entrance

Bends must be made so that the conduit or tubing remains undamaged with its internal diameter ____.

d. basically undiminished

Outdoor luminaires and associated equipment ____.

d. can be supported by trees

Rigid metal conduit (RMC) is a threadable raceway of ____ designed for the physical protection and routing of conductors and cables.

d. circular cross section

Conductor sizes are expressed in American Wire Gage (AWG) or in ____.

d. circular mils

Cable connector(s) with a ____ outside the box are not counted when determining the number of conductors.

d. clamping mechanism

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

d. copper

The length of a straight pull for multiple raceways must be at least ____ times the trade size (metric designator) of the largest single raceway.

d. eight

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

d. five

The term "labeled" means that ____.

equipment or material must continue to comply with the appropriate standards (or performance) under which the labeling was granted

A multi-wire branch circuit must have a disconnect means that opens all grounded and ungrounded conductors.

false 210.4(B) Disconnecting Means. Each multwire branch circuit shall be provided with a means that will simultaneously disconnect all ungrounded conductors at the point where the branch circuit originates.

Splices in conductors are permitted in raceways if done with a U.L. approved butt splice, split bolt or compression connector.

false 300.13(A) General Conductors in raceways shall be continuous between outlets, boxes, devices, and so forth. There shall be no splice or tap within a raceway unless permitted by 300.15; 368.56(A); 376.56; 378.56; 384.56; 386.56; 388.56; or 390.7.

The maximum number of conductors permitted in a Surface Metal Raceway shall not exceed 80 percent of the cross-sectional area of the raceway.

false 386.22 Number of Conductors or Cables. The number of conductors or cables installed in surface metal raceway shall not be greater than the number for which the raceway is designed. Cables shall be permitted to be installed where such use is not prohibited by the respective cable articles. The adjustment factors of 310.15(B)(3)(a) shall not apply to conductors installed in surface metal raceways where all of the following conditions are met: The cross-sectional area of the raceway exceeds 2500 mm2 (4 in.2). The current-carrying conductors do not exceed 30 in number. The sum of the cross-sectional areas of all contained conductors does not exceed 20 percent of the interior cross-sectional area of the surface metal raceway.

Ungrounded (hot) service drop conductors shall not be smaller than # 6 copper or #8 aluminum or copper clad aluminum.

false 230.23(B)

Food waste disposers and dishwashers are allowed to be connected to the small appliance circuits.

false NEC 210.52(B)(2)

Wall receptacles in bathrooms are to be installed on an adjacent wall within three feet of the center of the sink.

false NEC 210.52(D)

Receptacle loads, for other than dwellings, shall be required to be made subject to the demand factors in Table 220.42 or 220.44.

false NEC 220.42 NEC 220.44

The demand factors specified in Table 220.42 may be used to determine the number of branch circuits required for that occupancy.

false NEC 220/42

When a building is served by more than one service, a permanent plaque or directory must be installed in the main lobby.

false NEC 230.2(E)

Service drop conductors passing over all building roofs require a minimum clearance of 3 feet above the surface of the roof.

false NEC 230.24(A)

Service entrance type cables are required to be supported with in 12" of the weather head and every 4½' thereafter.

false NEC 230.51(A)

Where exposed to weather, raceways enclosing service entrance conductors, where arranged to properly drain, can be suitable for only damp locations.

false NEC 230.54(G)

The high leg conductor may be on the "C" phase of the panel if approved by the Power Company.

false NEC 230.56

Only service equipment rated at 250 volts shall be marked to identify it as being suitable for use as service equipment.

false NEC 230.66

A [ans] consists of the circuit conductors between the service equipment and the final branch circuit overcurrent device.

feeder 100

A [ans] is the circuit conductors between the service equipment or source of a separately derived system, and the final branch circuit overcurrent device.

feeder 100

When burying cables, "cover" is measured from the top of the raceway, cable or conductor to [ans] grade.

finished Table 300.5 Minimum Cover Requirements, 0 to 1000 Volts, Nominal, Burial in Millimeter (Inches) Note 1 Cover is defined as the shortest distance in mm (in.) measured between a point on the top surface of any direct-buried conductor, cable, conduit, or other raceway and the top surface of finished grade, concrete, or similar cover.

In a dwelling, when making a branch circuit extension, an AFCI device shall be installed at the [ans1] receptacle of the [ans2] branch circuit.

first existing NEC 210.12(D)(2)

A(n) ____ is an accessory, such as a locknut or bushing, whose function is primarily mechanical, rather than electrical, in nature.

fitting

The NEC requires receptacles to be mounted outside of a house in the [ans1] and [ans2] of the house, be [ans3] accessible and not be located higher than [ans4] (distamce) above the ground.

front back readily 6.5' NEC 210.52(E)(1)

Premises wiring systems that are grounded are required to have the [ans] conductor of the interior system electrically connected to a corresponding grounded conductor of the supply system. This connection is generally done at the service equipment.

grounded 200.3

All receptacles installed on 15 and 20 ampere branch circuits shall be of the [ans] Type. (Third prong) Article 406

grounding NEC 406.4(A)

The conductor used to connect the grounding electrode to the grounded or grounding conductor at the service is a [ans] (2 words) conductor.

grounding electrode According to Article 100, the "Grounding Electrode Conductor" is a conductor used to connect the system grounded conductor or the equipment to a grounding electrode.

Raceways shall be [ans] (2 words) between outlet, junction, or splicing points prior to the installation of conductors.

installed complete 300.18(A) Complete Runs. Raceways, other than busways or exposed raceways having hinged or removable covers, shall be installed complete between outlet, junction, or splicing points prior to the installation of conductors. Where required to facilitate the installation of utilization equipment, the raceway shall be permitted to be initially installed without a terminating connection at the equipment. Prewired raceway assemblies shall be permitted only where specifically permitted in this Code for the applicable wiring method.

Equipment intended to interrupt current at fault levels shall have a(n) [ans] rating sufficient for the nominal circuit voltage and available current.

interrupting 110.9

Equipment is to be installed and used according to its [ans1] and [ans2] instructions.

listed labeled 110.3

Local ordinances ____.

may adopt the NEC® as written or amend the Code with more or less stringent regulations

The NEC requires that electrical work work must be done in a [ans1] and [ans2] manner.

neat workmanlike 110.12

Taps up to 25 feet from a feeder are permitted, providing the ampacity of the tap conductor is at least [ans] the rating of the over current protection protecting the feeder being tapped.

one third According to 240.21(B)(2)(1), for taps up to 25 feet from a feeder the ampacity of the tap conductors is not less than one third of the rating of the overcurrent device protecting the feeder conductor.

Throughout this code the voltage considered shall be that at which the[ans].

operates 110.4

A "high-leg" conductor is to be marked [ans_color] in color and in panelboards it is to be installed on the [ans_phase] phase location.

orange higher 110.15

The insulation material of a type PFAH conductor is [ans].

perfluoro-alkoxy Table 310.4(A)

A grounded conductor shall be connected to the [ans] part of a lamp holder.

screw shell 200.10(C)

The conductors and equipment connecting the serving utility to the wiring system of the premises are called the ____.

service

Where an equipment grounding conductor is required, it must be run with the [ans] conductors.

supply

The UL logo indicates that ____.

the listed product complies with UL standards

Recessed incandescent lighting fixtures shall have [ans] protection and shall be identified as having such.

thermal 410.115(B) Recessed Incandescent Luminaires. Incandescent luminaires shall have thermal protection and shall be identified as thermally protected. Exception No. 1: Thermal protection shall not be required in a recessed luminaire identified for use and installed in poured concrete. Exception No. 2: Thermal protection shall not be required in a recessed luminaire whose design, construction, and thermal performance characteristics are equivalent to a thermally protected luminaire and are identified as inherently protected.

In general, the calculated load of a service shall not be less than the sum of the loads of the branch circuits.

true

Conductors of AC and DC circuits rated at less than 1,000 volts are allowed to be installed in the same raceway.

true 300.3(C)(1) 1000 Volts, Nominal, or Less. Conductors of ac and dc circuits, rated 1000 volts, nominal, or less, shall be permitted to occupy the same equipment wiring enclosure, cable, or race‐ way. All conductors shall have an insulation rating equal to at least the maximum circuit voltage applied to any conductor within the enclosure, cable, or raceway.

Galvanized Rigid Metal conduit is allowed under all atmospheric conditions and occupancies.

true 344.10(A)(1) Galvanized Steel, Stainless Steeel, and Red Brass RMC. Galvanized steel, stainless steel, and red brazz RMC shall be permitted under all atmospheric conditions and occupancies.

Flexible metal conduit can be installed exposed where not subject to physical damage.

true 348.12 Uses Not Permitted. FMC shall not be used in the following: In wet locations In hoistways, other than as permitted in 620.21(A)(1) In storage battery rooms In any hazardous (classified) location except as permitted by other articles in this Code Where exposed to materials having a deteriorating effecton the installed conductors, such as oil or gasoline Underground or embedded in poured concrete or aggregate Where subject to physical damage

AFCI protection is required for all habitable rooms in a dwelling except the bathroom.

true 210.12(A)

In general, vertically installed over-current devices are to be mounted so that "on" is in the up position and "off" is in the down position.

true According to 240.81, where circuit breakers handles are operated vertically rather than rotationally or horizontally, the "up" position of handle shall be the "on" position.

A service consists of conductors, equipment, overcurrent protection and disconnecting means.

true NEC 100

Accessible wiring methods are those capable of being removed or exposed without damaging the building structure.

true NEC 100

Receptacle, cord connectors, and attachment plugs shall be so constructed so that the receptacle or cord connectors will not accept an attachment plug with a different [ans] or current rating than that for which the device is intended,

voltage 406.8 Noninterchangeability. Receptacles, cord connectors,and attachment plugs shall be constructed such that receptacle or cord connectors do not accept an attachment plug with a different voltage or current rating from that for which the device is intended. However, a 20-ampere T-slot receptacle or cord connector shall be permitted to accept a 15-ampere attachment plug of the same voltage rating. Non-grounding-type receptacles and connectors shall not accept grounding-type attachment plugs.

Cabinet or cutout boxes installed in wet locations shall be listed as [ans].

weatherproof 312.2 Damp and Wet Locations. In damp or wet locations,surface-type enclosures within the scope of this article shall be placed or equipped so as to prevent moisture or water from entering and accumulating within the cabinet or cutout box,and shall be mounted so there is at least 6-mm (¼-in.) airspace between the enclosure and the wall or other supporting surface. Enclosures installed in wet locations shall be weatherproof. For enclosures in wet locations, raceways or cables entering above the level of uninsulated live parts shall use fittings listed for wet locations. Exception: Nonmetallic enclosures shall be permitted to be installed without the airspace on a concrete, masonry, tile, or similar surface. Informational Note: For protection against corrosion, see 300.6.

The grounded conductor of a branch circuit shall be identified by a continuous [ans1] or [ans2] color and the equipment grounding conductor of a branch circuit shall be identified by a continuous bare or [ans3] color.

white grey green NEC 210.5(A) ==> 200.6 NEC 210.5(B) ==> 250.119

NEC Reference: [ref] [ans] is the largest amount of current capable of being delivered at a point on the electrical system during a short-circuit condition.

100 Available Fault Current

NEC Reference: [ref] A feeder is defined as all circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final [ans] overcurrent device

100 Branch-Circuit

NEC Reference: [ref] A(n) [ans] is a manually operated device used in conjunction with a transfer switch to provide a means of directly connecting load conductors to a power source and of disconnecting the transfer switch.

100 Bypass Isolation Switch

NEC Reference: [ref] A(n) [ans] may consist of one or more sensing elements integral with the motor-compressor and an external control device.

100 thermal protector

NEC Reference: [ref] At the neutral point of the system, the [ans] of the nominal voltages from all other phases within the system that utilize the neutral, with respect to the neutral point, is zero potential.

100 vectorial sum

Every three years, the National Electrical Code is revised, but the Code has only been on a three-year cycle since [ans] (year).

1975

Informative Annex [ans] provides a list of product safety standards used for product listing where that listing is required by the NEC.

2

The minimum headroom of working spaces about service equipment and panelboards shall be [ans] (distance).

6'-6" 110.26(A)(3)

NEC Reference: [ref] Which chapters in the NEC apply generally to all installations? Chapter 1 Chapters 1-4 Chapters 1-8, but not 7 Chapters 5-8 Answer: [ans] (letter only)

90.3 B

NEC Reference: [ref] Informative annexes are not part of the requirements of the NEC but are included for [ans] only.

90.5(D) information purposes

____ wire, together with strain insulators, is used to support conductors in all spans exceeding 40 ft (12 m) in length.

Messenger

Which agency is responsible for the maintenance and publication of the NEC®?

National Fire Protection Association (NFPA)

What city was home to the first central-station electric generating plant developed by Thomas A. Edison? Answer: [ans] (city)

New York City

The NRTL program specified in the regulation "OSHA Recognition Process for Nationally Recognized Testing Laboratories" ____.

accredits and regulates independent laboratories

An attachment plug establishes connection between ____.

b. conductors of the attached flexible cord and the conductors permanently connected to the receptacle

A service point can be described as the point of demarcation between where the ____ ends and the premises wiring begins.

b. serving utility

A feeder consists of all circuit conductors located ____.

c. between the service equipment, the source of separately derived system, or other power supply source and the final branch-circuit overcurrent device

Conductors in concealed raceways, even though they may become accessible by withdrawing them, are still considered ____.

c. concealed

Unused openings shall be [ans] to afford protection essentially the same as the wall of the equipment.

closed 110.12(A)

The NEC ® arose as a consensus of more than 1200 individuals primarily to ____.

combat a growing epidemic of electrical fires

Grounded (grounding) is defined as being ____.

d. connected to ground or to a conductive body that extends the ground connection

"Equipment" is a general term, including fittings, devices, appliances, luminaires, apparatus, machinery, etc. used ____ in an electrical installation.

d. directly or indirectly

The authority having jurisdiction (AHJ) of enforcement of the Code will have the responsibility for:

deciding upon the approval of equipment and materials granting the special permission contemplated in a number of the rules making interpretations of the rules may waive specific requirements in this Code or permit alternative methods 90.4

The term "listed" means that ____.

equipment, materials, or services meet appropriate designated standards or have been tested and found suitable for a specified purpose

NEC® tables such as 210.21(B)(3) present a requirement's ____.

multiple application possibilities

The manufacture's [ans1], [ans2] or other descriptive [ans3] shall be placed on all electric equipment.

name trademark marking 110.21(A)(1)

The Illustrated Guide to the NEC® should be used as a(n) ____.

supplement to the NEC®

The word luminaire refers to ____.

the complete lighting unit

NEC Reference: [ref] A(n) [ans] branch circuit consists of two or more ungrounded conductors having a potential difference between them, and a grounded conductor having equal potential difference between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system.

100 Multiwire

NEC Reference: [ref] A(n) [ans] is a point on the wiring system at which current is taken to supply utilization equipment.

100 Outlet

NEC Reference: [ref] [ans] enclosures are constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions.

100 Raintight

NEC Reference: [ref] A(n) [ans] is defined as an electrical source, other than a service, having no direct connection(s) to circuit conductors of any other electrical source other than those established by grounding and bonding connections.

100 Separately Derived System

NEC Reference: [ref] Rainproof, raintight, or watertight equipment can fulfill the requirements for [ans] where varying weather conditions other than wetness, such as snow, ice, dust, or temperature extremes, are not a factor.

100 Weatherproof

NEC Reference: [ref] Four panelboards are in an electrical room behind locked doors. Only authorized personnel have keys to this electrical room. In accordance with 240.24, overcurrent devices shall be readily accessible. Since a key must be used to gain entry into the electrical room, are the overcurrent devices in these panelboards considered readily accessible? Answer: [ans] (Yes or No)

100 Yes

NEC Reference: [ref] A continuous load is where the [ans] (letter only) current is expected to continue for three hours or more. 80% average maximum 125%

100 maximum

NEC Reference: [ref] An intermittent operation in which load conditions are regularly recurrent is the definition of [ans].

100 periodic duty

NEC Reference: [ref] Solidly grounded is defined as connected to ground without inserting any [ans] or impedance device.

100 resistor

NEC Reference: [ref] Ampacity is defined as the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its [ans].

100 temperature rating

The National Fire Protection Association has acted as sponsor of the National Electrical Code since [ans] (year).

1911

In all cases where work space is required, the work space must be of sufficient width, depth and height to permit at least a [ans] opening of all equipment doors.

90 degree 110.26(A)(3)

NEC Reference: [ref] The purpose of the National Electrical Code is the practical safeguarding of [ans] from hazards arising from the use of electricity.

90.1(A) persons and property

NEC Reference: [ref] Chapter [ans] consists of tables that are applicable as referenced.

90.3 9

Formal interpretations of the Code are available from the NFPA, however they are not binding on the local AHJ.

True 90.6

The conductors between the final over current device and the outlet(s) are known as the [ans] conductors.

branch circuit 100

A(n) ____ is a device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing.

c. arc-fault circuit interruptor (AFCI)

Overcurrent devices do not have to be readily accessible if ____.

d. located adjacent to the equipment where access is achieved by the use of portable means

In addition to installation rules, the NEC® is concerned with the ____.

type and quality of electrical wiring system materials

As you were told during class, it is standard practice in the industry for the grounded conductor used in a 120/208 or 240 volt circuit to be [ans1] in color and in a 277/480 volt system the grounded conductor is normally [ans] in color.

white gray

NEC Reference: [ref] An overcurrent protective device with a circuit opening fusible part that is heated and severed by the passage of overcurrent through it is the definition of a(n)[ans].

100 Fuse

NEC Reference: [ref] A(n) [ans] branch circuit supplies two or more receptacles or outlets for lighting and appliances.

100 General Purpose

NEC Reference: [ref] A raceway encased in 4 in. (102 mm) of concrete on the ground floor (in direct contact with the earth) shall be considered a(n) [ans] location.

100 Location, Wet

NEC Reference: [ref] The [ans] is the connection between the grounded-circuit conductor and the equipment grounding conductor at the service.

100 Main Bonding Jumper

NEC Reference: [ref] A building containing three dwelling units is called a(n) [ans].

100 Multifamily Dwelling

NEC Reference: [ref] A type of surface, flush, or freestanding raceway, designed to hold conductors and receptacles, assembled in the field or at the factory is called a(n) [ans].

100 Multioutlet Assembly

NEC Reference: [ref] Name two items that must be present when defining an area as a bathroom. Always required: [ans1] Other requirement: [ans2]

100 Basin Toilet

NEC Reference: [ref] A(n) [ans] is defined as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).

100 Branch circuit

NEC Reference: [ref] An enclosure designed for either surface or flush mounting and provided with a frame, mat, or trim in which a swinging door or doors are or can be hung is called a(n) [ans].

100 Cabinet

NEC Reference: [ref] Continuous duty is an operation at a substantially constant load for [ans] (letter only). 1 hour or more 2 hours or more 3 hours or more an indefinitely long time

100 D

NEC Reference: [ref] A(n) [ans] is an intentionally constructed, low-impedance electrically conductive path designed and intended to carry current under ground-fault conditions from the point of a ground fault on a wiring system to the electrical supply source and that facilitates the operation of the overcurrent protective device or ground-fault detectors.

100 Effective Ground-Fault Current Path

NEC Reference: [ref] [ans] is a string of outdoor lights suspended between two points.

100 Festoon Lighting

NEC Reference: [ref] Ground is defined as the [ans].

100 earth

A load having the maximum level of current sustained for three hours or more is referred to as a ____ load.

b. continuous

Panelboards having doors or covers are considered ____.

b. guarded

A neutral conductor is defined as the conductor connected to the ____ that is intended to carry current under normal conditions.

b. neutral point of a system

A contact device installed at an outlet for the connection of an attachment plug is a(n) ____.

b. receptacle

A separately derived system is an electrical source, other than a service, having ____ connection(s) to circuit conductors of any other electrical source other than those established by grounding and bonding connections.

c. no direct