NEC 2014 ELECTRICAL PREPARATION

The total volume occupied by two internal cable clamps, six 12 AWG conductors, and a single-pole switch is_______cu in.

20.25

Factory-installed ______ wiring of listed equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage.

Internal

Class Ill, Division________locations include areas where easily ignitible fibers/flyings are handled, manufactured, or used.

a) 1

A wood brace used for supporting a box for structural mounting shall have a cross-section not less than nominal_______.

a) 1 in. x 2 in.

Ground-fault protection of equipment shall be provided for solidly grounded Wye electrical services of more than 150 volts-to-ground, but not exceeding 1,000V phase-to-phase for each service disconnecting means rated___or more.

a) 1,000A

The current-carrying conductors in cablebus shall be sized in accordance with the design of the cablebus, and in no case smaller than______AWG.

a) 1/0

A service is supplied by three metal raceways, each containing 600 kcmil ungrounded conductors. Determine the copper supply-side bonding jumper size for each service raceway.

a) 1/0 AWG

A motor terminal housing enclosing rigidly mounted motor terminals shall have a minimum of_________in. between line terminals for a 230V motor.

a) 1/4

For permanently connected motor-operated appliances with motors rated over_______,a switch or circuit breaker located within sight from the motor operated appliance can serve as the appliance disconnect.

a) 1/8 hp

The minimum size conductor permitted for branch circuits under 600V is __________AWG.

a) 14

Service conductors installed as unjacketed multiconductor cable shall have a minimum clearance of_______ft from windows that are designed to be opened, doors, porches, stairs, fire escapes, or similar locations.

a) 3

For flexible metal conduit, if flexibility is necessary after installation, unsecured lengths from the last point the raceway is securely fastened must not exceed________.

a) 3 ft for trade sizes 1/2 through 1 1/4 b) 4 ft for trade sizes 1 1/2 through 2 c) 5 ft for trade sizes 2 1/2 and larger d) all of these

For liquidtight flexible metal conduit, if flexibility is necessary after installation, unsecured lengths from the last point the raceway is securely fastened must not exceed_______.

a) 3 ft for trade sizes 1/2 through 1 1/4 b) 4 ft for trade sizes 1 1/2 through 2 c) 5 ft for trade sizes 2 1/2 and larger d) all of these

Where flexible cords are used in ambient temperatures other than_________the temperature correction factors from Table 310.15(B)(2)(a) shall be applied to the ampacity in Table 400.5(A)(1) and Tables 400.5(A)(2).

a) 30°C

The allowable ampacity of 18 TFFN is_______.

a) 6A

When applying the general provisions for receptacles spacing to the rooms of a dwelling unit which require receptacles in the wall space, no point along the floor line in any wall space of a dwelling unit may be more that_____from an outlet.

a) 6ft.

The number of fixture wires in a single conduit or tubing shall not exceed the percentage fill specified in______.

a) Chapter 9, Table 1

All wiring in or under the aircraft hangar floor shall comply with the requirements for_________locations.

a) Class I, Division 1

Any pit or depression below the level of an aircraft hangar floor shall be classified as a___________location that extends up to said floor level.

a) Class I, Division 1

Type UF cable is permitted to be used for inside wiring.

a) True

Fixed, mobile, or portable electric signs, section signs, outline lighting, and retrofit kits shall be_______.

a) approved by special permission OR b) listed

A means external to enclosures for connecting intersystem_____conductors shall be provided at service equipment or metering equipment enclosure and disconnecting means of buildings or structures supplied by a feeder.

a) bonding

Barriers shall be placed in all service switchboards such that no uninsulated, ungrounded service________or service terminal is exposed to inadvertent contact by persons or maintenance equipment while servicing load terminations.

a) busbar

Conductors in raceways shall be_________ between outlets, boxes, devices, and so forth.

a) continuous

Article 200 contains the requirements for____.

a) identification of terminals b) grounded conductors in premises wiring systems c) identification of grounded conductors d) all of these

Off-road, self-propelled electric vehicles, such as______are not considered an electric vehicle

a) industrial trucks, hoists, lifts b) golf carts, airline ground support equipment c) tractors, boats d) all of these

The continuity of a grounded conductor shall not depend on a connection to a______.

a) metallic enclosure b) raceway c) cable armor d) all of these

Luminaires used in agricultural buildings shall________.

a) minimize the entrance of dust, foreign matter, moisture, and corrosive material b) be protected by a suitable guard if exposed to physical damage c) be listed for use in wet locations when exposed to water d) all of these

HDPE conduit shall be resistant to__________.

a) moisture b) chemical atmospheres c) impact and crushing d) all of these

Vegetation such as trees shall not be used for support of______.

a) over head conductor spans

Where two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to disconnect simultaneously all ungrounded conductors that supply those devices or equipment shall be provided at the_____.

a) point where the branch circuit originates

In a dwelling unit, illumination for outdoor entrances that have grade-level access can be controlled by____.

a) remote b) central c) automatic control d) any of these

High-impedance grounded neutral systems shall be permitted for three-phase ac systems of 480V to 1.000V where______.

a) the conditions of maintenance ensure that only qualified persons service the installation b) ground detectors are installed on the system c) line-to-neutral loads are not served d) all of these

Raceways permitted as a wiring method in Class II, Division 1 locations include_________.

a) threaded RMC and steel IMC

A bushing shall be permitted in lieu of a box or terminal where the conductors emerge from a raceway and enter or terminate at equipment such as open switchboards, unenclosed control equipment, or similar equipment.

a) true

An atmosphere classified as hazardous Group E contains combustible metal dusts.

a) true

An atmosphere classified as hazardous Group G contains combustible dusts such as flour, grain, wood, plastic, and chemicals that are not included in Group E or Group F

a) true

Each motor shall be provided with an individual controller.

a) true

Surge protective devices shall be listed.

a) true

ground-fault circuit-interrupter protection shall be provide for outlets not exceeding 240V that supply boat hoists installed in dwelling unit locations.

a) true

Flat cable assemblies shall consist of______conductors.

a) two b) three c) four d) any of these

If a set of 120/240V overhead feeder conductors terminates at a through-the-roof raceway or approved support, with less than 6 ft of these conductors passing over the roof overhang, the mini-mum clearance above the roof for these conductors is________.

b) 18 in.

A dwelling unit containing two 120V laundry branch circuits has a calculated load of ___________ VA for the laundry circuits.

b) 3,000

Busways shall be securely supported, unless otherwise designed and marked as such, at intervals not to exceed_____________.

b) 5

Type SE cables shall be permitted to be used for branch circuits or feeders where the insulated conductors are used for circuit wiring and the uninsulated conductor is used only for______purposes.

b) equipment grounding

A motor controller shall open all conductors to the motor where not used as a disconnecting means.

b) false

An overload is the same as a short circuit or ground fault.

b) false

Article 285 covers surge protective devices rated over 1 kV.

b) false

Flexible cords shall not be used as a substitute for______wiring.

b) fixed

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

b) listed

The service disconnecting means shall be marked as suitable for use as service equipment and shall be___.

b) listed

Electric space-heating cables shall not extend beyond the room or area in which they____________.

b) originate

Metal raceways shall not be_______by welding to the raceway.

b) terminated

Lampholders installed in wet locations shall be listed for use in_______locations.

b) wet

When a feeder supplies _________ in which equipment grounding conductors are required, the feeder shall include or provide and equiptment grounding conductor.

c) branch circuits

Guest rooms or guest suites provided with permanent provsions for_______shall have receptacle outlets installed in accord-dance with all of the applicable requirements for a dwelling unit in accordance with 210.52.

c) cooking

Materials such as straps, bolts, screws, and so forth, which are associated with the installation of IMC in wet locations shall be_______.

c) corrosion resistant

Running threads shall not be used on RMC for connection at_________.

c) couplings

A conductor encased within material of composition or thickness that is not recognized by the NEC as electrical insulation is considered _______.

c) covered

____ are designed for surface mounting that have swinging doors or covers.

c) cutout boxes

A manufactured wiring system is a system assembled by a manufacturer, which cannot be inspected at the building site without__________.

c) damage or destruction to the assembly

A(n)______is a device, or group of devices, by which the conductors of a circuit can be disconnected from their source of supply.

c) disconnecting means

An oil switch can be used as both the motor controller and disconnecting means on a circuit whose rating__________or 100A.

c) does not exceed 1,000V

Boxes andfittings shall be________where installed in a Class III location.

c) dusttight

For grounded systems, normally noncurrent-carrying conductive materials enclosing electrical conductors or equipment, or forming part of such equipment, shall be connected together and to the_____to establish an effective ground-fault current path.

c) electrical supply source

Direct-buried conductors, cables, or raceways, which are subject to movement by settlement or frost, shall be arranged to prevent damage to the________or to equipment connected to the raceways.

c) enclosed conductors

Receptacles and cord connectors having equipment grounding conductor contacts shall have those contacts connected to a(n)__________conductor.

c) equipment grounding

When LFMC is used to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment of for equipment requiring movement after installation, a(n) _____conductor shall be installed.

c) equipment grounding

Metal shields for flat conductor cable shall be electrically continuous to the_______.

c) equipment grounding conductor

Surface metal raceway enclosures providing a transition from other wiring methods shall have a means for connecting a(n)__________.

c) equipment grounding conductor

Class I, Division 1 locations are those in which ignitible concentrations of___________can exist under normal operating conditions.

c) flammable gases or flammable liquid-produced vapors

A child care facility is a building or structure, or portion thereof, used for educational, supervision, or personal care services for more than_______children seven years in age or less.

c) four

For the purposes of determining box fill, each device or utilization equipment in the box which is wider than a single device box counts as two conductors for each________required for the permitted. mounting.

c) gang

Which of the following shall not be connected to the life safety branch in a hospital?

c) general illumination

Concrete, brick, or tile walls are considered_______________, as applied to working space requirements.

c) grounded

Where LFMC is used in a Class II, Division 1 location as permitted in 502.10, it shall _____________.

c) include an equipment bonding jumper of the wire type

The required working space for battery systems is measured from the edge of the battery_________.

c) rack or cabinet

Bends in FMC___________between pull points.

c) shall not exceed 360 degrees

In general, the minimum size conductor permitted for use in parallel installations is________AWG.

d) 1/0

A(n)______ branch circuit supplies energy to one or more outlets to which appliances are to be connected.

d) appliance

Cables or raceways installed using directional boring equipment shall be______for this purpose.

d) approved

Where corrosion protection is necessary for ferrous metal equipment and the conduit is threaded in the field, the threads shall be coated with a(n)_______electrically conductive, corrosion-resistant compound.

d) approved

The connection between the grounded circuit conductor and the equipment grounding conductor at the service is accomplished by installing a(n) ______ bonding jumper.

main

When the Code uses "________"it means the identified actions are allowed but not required, and they may be options or alternative methods.

shall be permitted

The area used for________of alcohol-based windshield washer fluid in repair garages shall be unclassified.

a) storage b) handling c) dispensing into motor vehicles d) any of these

A circuit breaker with a____voltage rating. such as 240V 480V, can be used where the nominal voltage between any two conductors does not exceed the circuit breaker's voltage rating.

a) straight

Flexible cords and cables shall not be concealed behind building _______, or run through doorways, windows, or similar openings.

a) structural ceilings b) suspended or dropped ceilings c) floors or walls d) all of these

In an area served by a separately derived system, the______shall he connected to the grounded conductor of the separately derived system.

a) structural steel AND b) metal piping

Electrical installations in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion is not____________.

a) substantially increased

Flexible cords for pendants installed above Class I locations in a commercial garage shall be__________.

a) suitable for the type of service AND b) listed for hard usage

A(n)____ is intended to provide limited overcurrent protection for specific applications and utilization equipment such as luminaires and appliances. This limited protection is in addition to the protection provided by the required branch-circuit overcurrent protective device.

a) supplementary overcurrent device

Multiwire branch circuits shall______.

a) supply only line-to-neutral loads

A fixed, stationary, or portable self-contained, electrically illuminated equipment with words or symbols designed to convey information or attract attention describes______.

a) an electric sign

Resistors and reactors rated over 1,000V shall be isolated by__________to protect personnel from accidental contact with energized parts.

a) an enclosure OR b) elevation

Pipeline resistance heating elements include heating__________.

a) blankets b) tape c) cables d) all of these

When bonding enclosures, metal raceways, frames, and fittings, any nonconductive paint, enamel, or similar coating shall be removed at _______.

a) contact surfaces b) threads c) contact points d) all of these

Cable tray systems shall not be used________.

a) in hoistways OR b) where subject to severe physical damage

A multioutlet assembly shall not be installed_________.

a) in hoistways b) where subject to severe physical damage c) where subject to corrosive vapors d) all of these

All conductors of the same circuit shall be__________,unless otherwise specifically permitted in the Code.

a) in the same raceway or cable OR b) in close proximity in the same trench

Outline lighting may include an arrangement of_________to outline or call attention to the shape of a building.

a) incandescent lamps b) electric-discharge lighting c) electrically powered light sources d) any of these

A branch circuit that supplies only one utilization equipment is a(n)_______branch circuit.

a) individual

In other than dwelling locations, GFCI protection is required in_________.

a) indoor wet locations b) locker rooms with associated showering facilities c) garages, service bays, and similar areas other than vehicle exhibition halls and showrooms d) all of these

Where conditions of maintenance and supervision ensure only qualified persons service the installation in_____buildings, the entire length of the metal water piping system can be used for grounding purposes, provided the entire length, other than short sections passing through walls, floors, or ceilings, is exposed.

a) industrial b) institutional c) commercial d) all of these

The CODE isn't intended as a design specification standard or instruction manual for untrained plumbing fixtures.

a ) true

Two-family dwellings, multifamily dwellings, and multiple occupancy buildings shall be permitted to have one set of service entrance conductors to supply branch circuits for public or common areas.

a ) true

Which of the following metal parts shall be protected from corrosion?

a) Ferrous metal raceways b) Ferrous metal elbows c) Ferrous boxes d) all of these

Electric drinking fountains shall be __________protected.

a) GFCI

Which of the following switches must indicate whether they are in the open (off) or closed (on) position?

a) General-use switches b) Motor-circuit switches c) Circuit breakers d) all of these

In Class_________locations for Groups A, B, C, and D, the classification involves determinations of maximum explosion pressure and maximum safe clearance between parts of a clamped joint in an enclosure.

a) I

"__________." means that an object is not readily accessible to persons unless special means for access are used.

a) Isolated

___________shall be permitted to support the wiring methods and equipment permitted to be used in other spaces used for envi-ronmental air (plenum).

a) Metal cable tray systems

_____________wiring methods can be installed in a cable tray.

a) Metal raceway b) Nonmetallic raceway c) Cable d) all of these

____________shall not be used as grounding electrodes.

a) Metal underground gas piping systems AND b) Aluminum

Aluminum fittings and enclosures can be used with_____conduit where not subject to severe corrosive influences.

a) steel rigid metal AND b) aluminum rigid metal

________can be installed in messenger-supported wiring.

a) Multiconductor service-entrance cable b) Mineral-insulated (Type MI) cable c) Multiconductor underground feeder cable d) all of these

_________can be used to fasten boxes to a structural member using brackets on the outside of the enclosure.

a) Nails AND b) Screws

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

a) No. 6

____________on equipment to be grounded shall be removed from contact surfaces to ensure good electrical continuity.

a) Paint b) Lacquer c) Enamel d) any of these

Raceways permitted in a Class III location include____________.

a) RMC and IMC b) Type MC cable with listed termination fittings c) electrical metallic tubing d) any of these

Circuit breakers used to switch high-intensity discharge lighting circuits shall be listed and marked as______.

a) SWD OR b) HID

Working space shall not be used for ________.

a) storage

Admitting close approach not guarded by locked doors, elevation, or other effective means, is referred to as_______.

a) accessible (as applied to equipment)

When the fluorescent luminaire disconnecting means for fluorescent luminaires that utilize double-ended lamps (typical fluorescent lamps) is external to the luminaire, it shall be_______.

a) accessible to qualified persons b) a single device c) located in sight of the disconnecting means d) all of these

Where the point of attachment is not known, service-entrance conductors for a manufactured building shall be installed__________.

a) after erection at the building site

Power distribution blocks installed in metal wireways shall________.

a) allow for sufficient wire-bending space at terminals AND b) not have uninsulated exposed live parts

Fuses shall be marked with their______.

a) ampere and voltage rating b) interrupting rating where other than 10,000A c) name or trademark of the manufacturer d) all of these

Listed FMC and LFMC shall contain an equipment grounding conductor if the raceway is installed for the reason of_______.

b) flexibility after installation OR c) minimizing transmission of vibration from equipment

Illumination shall be provided for all working spaces about service equipment, switchboards, switchgear, panelboards, and motor control centers_______.

b) located indoors

The disconnecting means for an elevator or escalator shall be an enclosed externally operable circuit breaker or fused motor circuit switch that is_______.

b) lockable

When one electrical circuit controls another circuit through a relay, the first circuit is called a "_____."

b) remote-control circuit

Temporary wiring shall be_______ immediately upon the completion of construction or purpose for which the wiring was installed.

b) removed

ln ungrounded systems, electrical equipment, wiring, and other electrically conductive material likely to become energized shall be installed in a manner that creates a low—impedance circuit from any point on the wiring system to the electrical supply source to facilitate the operation of overcurrent devices Should a(n) ________ fault from a different phase occur on the wiring system.

b) second ground

Plug-in-type circuit breakers that are backfed shall be________by an additional fastener that requires more than a pull to release.

b) secured in place

Overhead service-entrance cables shall be equipped with a ___.

b) service head

The underground conductors between the utility electric supply system and the service point are known as the "______."

b) service lateral

Overhead service conductors are the conductors between the_________and the first point of connection to the service-entrance conductors at the building or other structure.

b) service point

The service drop is defined as the overhead conductors between the utility electric supply system and the________.

b) service point

The____ is the point of connection between the facilities of the serving utility and the premises wiring.

b) service point

Loop wiring in an underfloor raceway______to be a splice or tap.

b) shall not be considered

Loop wiring_____in a cellular metal raceway.

b) shall not be considered a splice or tap

Duct heater controller equipment shall have a disconnecting means installed within_________the controller except as allowed by 424.19(A).

b) sight from

Branch-circuit conductors to individual appliances shall not be sized________than required by the appliance markings.

b) smaller

Grounding and bonding connection devices that depend solely on________shall not be used.

b) solder

Connected to ground without the insertion of any resistor or impedance device is referred to as "_______"

b) solidly grounded

Additional services shall be permitted for a single building or other structure sufficiently large to make two or more services necessary if permitted by_______.

b) special permission

The motor branch-circuit short-circuit and ground-fault protective device shall be capable of carrying the_________current of the motor.

b) starting

Wiring on luminaire chains and other movable parts shall be__________.

b) stranded

A panelboard shall be protected by an overcurrent device within the panelboard, or at any point on the______side of the panel-board.

b) supply

Each switchboard or panelboard used as service equipment shall be provided with a main bonding jumper within the panel-board, or within one of the sections of the switchboard, for connecting the grounded service-entrance conductor on its_______ side to the switchboard or panelboard frame.

b) supply

Type S fuseholders, and adapters shall be designed so that__________would be difficult.

b) tampering OR c) shunting

The________rating of a conductor is the maximum temperature, at any location along its length, which the conductor can withstand over a prolonged period of time without serious degradation.

b) temperature

When installing direct-buried cables, a ________shall be used at the end of a conduit that terminates underground.

b) terminal fitting OR c) bushing

The requirement for maintaining a 3-foot vertical clearance from the edge of the roof shall not apply to the final feeder conductor span where the conductors are attached to_________.

b) the side of a building

The requirement to maintain a 3-foot vertical clearance from the edge of a roof does not apply to the final conductor span where the service drop is attached to___.

b) the side of a building

Where the resistance-to-ground of 25 ohms or less is not achieved for a single rod electrode,_______.

b) the single rod electrode shall be supplemented by one additional electrode

Cut ends of FMC shall be trimmed or otherwise finished to remove rough edges, except where fittings___________.

b) thread into the convolutions

ENT shall be permitted for direct earth burial when used with fittings listed for this purpose.

b) true

Where six current-carrying conductors are run in the same con-duit or cable, the ampacity of each conductor shall be adjusted by a factor of_____percent.

c) 80

Using the standard load calculation method, the feeder demand factor for five household clothes dryers is_______percent.

c) 85

Signs and outline lighting systems shall be installed so that adjacent combustible materials are not subjected to temperatures in excess of____________.

c) 90°C

THW insulation has a_____rating when installed within electric-discharge lighting equipment, such as through fluorescent luminaires.

c) 90°C

The insulation temperature rating of conductors in Type NM cable shall be_____.

c) 90°C

___________is a nonferrous, nonmagnetic metal that has no heating due to hysteresis heating.

c) Aluminum

______ in dwelling units shall supply only loads within that dwelling unit or loads associated only with that dwelling unit.

c) Branch circuits

Portable lighting equipment used in commercial garages shall be identified for ___________________locations, unless the lamp and its cord are supported or arranged in such a manner that they cannot be used in the locations classified in 511.3.

c) Class I, Division 1

The space between 5 ft and 10 ft from the open end of a vent, extending in all directions, shall be classified as_________in a bulk storage plant.

c) Class II, Division 1

For general motor applications, the motor branch-circuit short-circuit and ground-fault protection device shall be sized based on the______________values.

c) NECTable

Type_____fuse adapters shall be designed so that once inserted in a fuseholder they cannot be removed.

c) S

Which conductor type has an insulation temperature rating of 90°C?

c) THHN

Many terminations and equipment are either marked with ________, or have that information included in the product's installation instructions.

c) a tightening torque

The maximum current, in amperes, that a conductor can carry continuously, where the temperature will not be raised in excess of the conductor's insulation temperature rating is called its "_________."

c) ampacity

Joints between NUCC, fittings, and boxes shall be made by_______.

c) an approved method

Joints between PVC conduit, couplings, fittings, and boxes shallbe made by______.

c) an approved method

Joints between lengths of ENT, couplings, fittings. and boxes shall be made by_______.

c) an approved method

Compliance with the provisions of the NEC will results in _________.

c) an electrical system essentially free from hazard

Flexible cords approved for and used with a specific listed appliance or luminaire shall be considered to be protected by the branch-circuit overcurrent device when______.

c) applied within the listing requirements

Installations of communications equipment that are under the exclusive control of communications utilities, and located outdoors or in building spaces used exclusively for such installations____ covered by the NEC.

c) are not

Openings around electrical penetrations into or through fire-resistant-rated walls, partitions, floors, or ceilings shall______to maintain the fire-resistance rating.

c) be firestopped using approved methods

Bends in NUCC shall______between termination points.

c) be limited to 360 degrees

Bends in PVC conduit shall________between pull points.

c) be limited to 360 degrees

A receptacle is considered to be in a location protected from the weather when located under roofed open porches, canopies, marquees, and the like, where it will not be subjected to_______.

c) beating rain or water runoff

Where practicable rod, pipe, and plate electrodes shall be installed_________.

c) below permanent moisture level

A reliable conductor that ensures electrical conductivity between metal parts of the electrical installation that are required to be electrically connected is called a(n) "________."

c) bonding conductor or jumper

A heating panel is a complete assembly provided with a junction box or length of flexible conduit for connection to a(n)________.

c) branch circuit

The rating of a branch circuit shall be determined by the rating of the__________.

c) branch-circuit overcurrent device

Equipment grounding conductors for motor branch circuits shall be sized in accordance with Table 250.122, based on the rating of the________device.

c) branch-circuit short-circuit and ground-fault protective

The NEC defines a(n) "______" as a structure that stands alone or that is cut off from adjoining structures by fire walls or fire barriers, with all openings therein protected by approved fire doors.

c) building

Short sections of metal enclosures or raceways used to provide . support or protection of________from physical damage shall no t be required to be connected to the equipment grounding conductor.

c) cable assemblies

Nonlocking type 15A and 20A, 125V receptacles in_________must be listed as tamper resistant.

c) child care facilities

Type NM cable protected from physical damage by a raceway shall not be required to be_____within the raceway.

c) secured

The selection and installation of overcurrent devices so that an overcurrent condition will be localized and restrict outages to the circuit or equipment affected, is called "_______."

c) selective coordination

Metal or nonmetallic raceways, cable armors, and cable sheaths______between cabinets, boxes, fittings, or other enclosures or outlets.

c) shall be continuous

The additional service disconnecting means for fire pumps, emergency systems, legally required standby, or optional standby services, shall be installed remote from the one to six service disconnecting means for normal service to minimize the possibility of______interruption of supply.

c) simultaneous

Each appliance shall have a means that_______ disconnects all ungrounded circuit conductors.

c) simultaneously

There shall be no more than _________ disconnects installed for each service or for each set of service entrance conductors as permitted in 230.2 and 230.40.

c) six

There shall be no more than________-switches or circuit breakers to serve as the disconnecting means for a building supplied by a feeder.

c) six

In dwelling units, when determining the spacing of receptacles outlets,______on exterior walls shall not be considered wall space.

c) sliding panels

Only wiring methods recognized as____ are included i this Code.

c) suitable

For a single separately derived system, the grounding electrode conductor connects the grounded conductor of the derived system to the grounding electrode at the same point on the separately derived system where the_____is connected.

c) system bonding jumper

When nails are used to mount knobs for the support of open wiring on insulators, they shall not be smaller than______-penny.

c) ten

The messenger of messenger-supported wiring shall be supported at dead ends and at intermediate locations so as to eliminate_______on the circuit conductors.

c) tension

The identification of______to which a grounded conductor is to be connected shall be substantially white in color.

c) terminals

In order to_______NUCC, the conduit shall be trimmed away from the conductors or cables using an approved method that will not damage the conductor or cable insulation or jacket.

c) terminate

An effective ground-fault current path 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______.

c) the electrical supply source

Raceways, cable trays, cablebus, auxiliary gutters, cable armor, boxes, cable sheathing, cabinets, elbows, couplings, fittings, supports, and support hardware shall be of materials suitable for________.

c) the environment in which they are to be installed

Each disconnecting means shall be legibly marked to indicate its purpose unless located and arranged so____.

c) the purpose is evident

Where a supply-side bonding jumper of the wire type is run with the derived phase conductors from the source of a sepa-rately derived system to the first disconnecting means, it shall be sized in accordance with 250.102(C), based on_______.

c) the size of the derived ungrounded conductors

Recessed incandescent luminaires shall have ______ protection and shall be identified as thermally protected.

c) thermal

EMT couplings and connectors shall be made up_____________.

c) tight

All fixed outdoor deicing and snow-melting equipment shall be provided with a means for simultaneous disconnection from all_______conductors.

c) ungrounded

Each ___service conductor shall have overload protection.

c) ungrounded

Multiwire branch circuits for temporary wiring shall be provided with a means to disconnect simultaneously all________ conductors where the branch circuit originates.

c) ungrounded

Lampholders installed over highly combustible material shall be of the________type.

c) unswitched

In a hospital where flammable anesthetics are employed, the entire area that extends_______shall be classified as a Class I, Division 1 location.

c) upward to a level 5 ft above the floor

Cabinets, cutout boxes, and meter socket enclosures installed in wet locations shall be______.

c) weatherproof

Flexible cord used in listed extension cord sets shall be considered protected against overcurrent when used_____.

c) within the extension cord's listing requirements

All 15A and 20A, 125V receptacles installed in_____of dwelling units shall have GFCI protection.

c)unfinished basements and crawl spaces

Ground-fault protection of equiptment shall be required for a feeder disconnect if the disconnect is rated _________.

d) 1,000A, 480V

Electric-discharge luminaires having an open-circuit voltage exceeding_________ shall not be installed in or on dwelling occupancies.

d) 1,000V

GFCI protection is required for 15A, 20A, and 30A, 125V receptacle outlets that are installed or existing as part of the permanent wiring of the building/structure when used during construc-tion or remodeling. Listed cord sets or adapters that incorporate listed GFCI protection for portable use can be used to meet this requirement.

a) true

Ground-fault protection of equipment shall be provided for electric heat tracing and heating panels installed on pipelines or vessels except in certain industrial installations where there is alarm indication of ground faults.

a) true

For grounded systems, normally noncurrent-carrying conductive materials enclosing electrical conductors or equipment shall be connected to earth so as to limit the voltage-to-ground on these on materials.

a) true

For indoor installations, heating, cooling, or ventilating equipment shall not be installed in the dedicated space above a panelboard or switchboard

a) true

GFCI protection for personnel shall be provided at carnivals, circuses, and fairs for all 15A and 20A, 125V nonlocking-type receptacle that are readily accessible to the general public.

a) true

Outside wiring shall not be installed beneath openings through which materials may be moved, and shall not be installed where they will obstruct entrance to these buildings' openings.

a) true

PVC conduit can support nonmetallic conduit bodies not larger than the largest entering raceway, but the conduit bodies shall not contain devices, luminaires, or other equipment.

a) true

PVC conduit shall be permitted for exposed work where subject to physical damage if identified for such use.

a) true

Raceways shall be provided with expansion fittings where necessary to compensate for thermal expansion and contraction.

a) true

Raceways, cable assemblies, boxes, cabinets, and fittings shall be securely fastened in place.

a) true

Receptacle outlet assemblies listed for the application can be installed in countertops of dwelling unit bathrooms.

a) true

Receptacle outlets can be installed below the countertop surface in dwelling units when necessary for the physically impaired, or if there is no means available to mount a receptacle above an island or peninsular countertop.

a) true

Receptacles installed behind a bed in the guest rooms in hotels and motels shall be located to prevent the bed from contacting an attachment plug, or the receptacle shall be provided with a suitable guard.

a) true

Receptacles installed for countertop surfaces as required by 210.52(c) shall not be used to meet the receptacle requirements for wall space as required by 210.52(A).

a) true

Receptacles mounted to and supported by a cover shall be secured by more than one screw unless listed and identified for securing by a single screw.

a) true

In dwelling unit bathrooms, not less than one 15A or 20A e , 125V receptacle outlet must b installed within____________from the out-side edge of each bathroom basin.

b) 3 ft

A minimum working space depth of______to live parts operating at 277 volts-to-ground is required where there are exposed live parts on one side and no live or grounded parts on the other side.

b) 3 ft.

The minimum working space on a circuit that is 120 volts-to-ground, with exposed live parts on one side and no live or grounded parts on the other side of the working space, is______.

b) 3 ft.

The working space in front of the electric equipment shall not be less than______wide, or the width of the equipment, whichever is greater.

b) 30 in.

Service conductors installed in overhead masts on the outside surface of the building traveling through the eave, but not the wall, of that building are considered to be outside of the building.

a) true

Service conductors originate at the service point and terminate at the service disconnecting means.

a) true

Where rock bottom is encountered when driving a ground rod at an angle up to 45 degrees, the electrode can be buried in a trench that is at least_______deep.

b) 30 in.

A service consisting of 12 AWG service-entrance conductors requires a grounding electrode conductor sized no less than_______.

b) 8 AWG

The equipotential plane in an agricultural building shall be connected to the electrical grounding system with a solid copper, insulated, covered, or bare conductor and not smaller than

b) 8 AWG

Over head conductors installed over roofs shall have a vertical clearance of____above the roof surface, unless permitted by an exception.

b) 8 ft

The minimum size service-drop conduvtoer permitted is___ AWG copper or___ AWG aluminum or copper_clad aluminum.

b) 8,6

A recessed luminaire shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of _________ *c

b) 90

Panelboards supplied by a three-phase, 4-wire, delta-connected system shall have the phase with higher voltage-to-ground (high-leg) connected to the______phase.

b) B

________is defined as the area between the top of direct-burial cable and the top surface of the finished grade

b) Cover

Any pit for which ventilation is not provided below a minor repair garage floor level of a lubrication or service room is considered to be a Class I,______________ location up to the floor level.

b) Division 2

______________enclosures are constructed so that dust will not enter under specific test conditions.

b) Dusttight

Additional services shall be permitted for different voltages, frequencies, or phases, of for different uses such as for___.

b) different rate schedules

Luminaires for fixed lighting in Class II, Division 2 locations shall be equipped with enclosures that are_______or otherwise identified for the location.

b) dusttight

Class III locations are those that are hazardous because of the presence of_________.

b) easily ignitible fibers or materials producing combustible flyings

Raceways or cable trays containing electric conductors shall not contain any pipe or tube for steam, water, air, gas, drainage, or any service other than________.

b) electrical

An atmosphere containing ignitible concentrations of______is an example of a typical Class I, Group C hazardous (classified) location.

b) ethylene

Provisions appropriate to the battery technology shall be made for sufficient diffusion and ventilation of the gases from a storage battery to prevent the accumulation of a(n)___________mixture.

b) explosive

A Type 2 surge protective device is permitted to be connected on either the line or load side of the service equipment.

b) false

A grounding electrode at a separate building or structure shall he required where one multiwire branch circuit serves the build-ing or structure.

b) false

A hybrid system includes the utility power system.

b) false

A separate disconnecting means shall be installed where a capacitor is connected on the load side of a motor controller.

b) false

Aluminum conductors and copper-clad aluminum conductors shall be permitted for branch-circuit wiring in mobile homes.

b) false

Circuit directories can include labels that depend on transient conditions of occupancy.

b) false

Conductors supplied under the tap rules are allowed to supply another conductor using the tap rules.

b) false

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

b) false

Currents that introduce noise or data errors in electronic equipment are considered objectionable currents in the context of 250.6(d) of the NEC.

b) false

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

b) false

For a skin-effect heating installation complying with Article 427, the provisions of 300.20 shall apply to the installation of a single conductor in a ferromagnetic envelope (metal enclosure).

b) false

For grounded systems, the earth is considered an effective ground-fault current path

b) false

If a permanently installed electric baseboard heater has factory-installed receptacle outlets, the receptacle is permitted to be connected to the heater circuits.

b) false

In Class III locations, locknut-bushing and double-locknut types of fittings may be depended on for bonding purposes.

b) false

In dwelling units. outdoor receptacles can be connected to one of the 20A small-appliance branch circuits.

b) false

In health care facilities, receptacles with insulated grounding terminals, as described in 250.146(d) shall be permitted in a patient care vicinity.

b) false

Lighting track fittings can be equipped with general-purpose receptacles.

b) false

Lighting track is a manufactured assembly and its length may not be altered by the addition or subtraction of sections of track.

b) false

Metal enclosures and raceways for other than service conductors shall be connected to the neutral conductor.

b) false

Overhead service conductors can be supported to hardwood trees.

b) false

Seals in Class II hazardous (classified) locations shall be explo-sionproof.

b) false

Surge protective devices shall only be located outdoors.

b) false

The Code covers underground mine installations and self-propelled mobile surface mining machinery and its attendant electrical trailing cable.

b) false

The connection of the grounding electrode conductor to a buried grounding electrode (driven ground rod) shall be made with a listed terminal device that is accessible.

b) false

The dedicated space above a panelboard extends to a dropped or suspended ceiling, which is considered a structural ceiling.

b) false

The demand factors of Table 220.56 apply to space heating, ventilating, or air-conditioning equipment.

b) false

The electric vehicle inlet is considered to be part of the electric vehicle supply equipment.

b) false

The equipment grounding conductor at a marina is required to be an insulated copper conductor for all circuits.

b) false

The material located in the NEC Annexes are part of the requirements of the Code and shall be complied with.

b) false

The term "Luminaire" includes an individual lampholder

b) false

Type NM cable can be installed as open runs in dropped or suspended ceilings in other than one- and two-family and multifamily dwellings.

b) false

When installed indoors for carnivals, circuses, and fairs, flexible cords and flexible cables shall be listed for wet locations and shall be sunlight resistant.

b) false

When locating lighting outlets in dwelling units, a vehicle door in a garage shall be considered an outdoor entrance.

b) false

Where used, the surge protective device shall be connected to the grounded conductor of the circuit.

b) false

Where ventilation marking is required, the electric vehicle supply equipment shall be clearly field marked, that "ventilation is required."

b) false

The NEC defines a "_______" as all circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit over-current device.

b) feeder

Article 503 covers the requirements for electrical and electronic equipment and wiring in Class III locations where fire or explosion hazards may exist due to ignitible________.

b) fibers/flyings

Service conductors shall not be installed beneath openings through which material may be moved and shall not be installed where they will obstruct entrance to these buildings' openings.

a) true

Single-pole breakers with identified handle ties can be used to protect each ungrounded conductor for line-to-line connected loads.

a) true

Soldered splices shall first be spliced or joined so as to be mechanically and electrically secure without solder and then be soldered.

a) true

Some cleaning and lubricating compounds can cause severe deterioration of many plastic materials used for insulating and structural applications in equipment.

a) true

Strut-type channel raceway shall be permitted as an equipment grounding conductor in accordance with 250.118(13).

a) true

Supplementary overcurrent devices used in luminaires or appliances are not required to be readily accessible.

a) true

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

a) true

Surge arrestors 1,000V or less are also known as Type 1 surge protective devices (SPDs).

a) true

Surge protective devices shall be marked with a short-circuit current rating and shall not be installed where the available fault current is in excess of that rating.

a) true

Temporary currents resulting from abnormal conditions, such as ground faults, are not considered to be objectionable current.

a) true

The NEC allows a lighting outlet on the wall in a clothes closet when it is at least 6 in. away from storage space.

a) true

The NEC does not cover electrical installations is ships, water-craft, railway rolling stock, aircraft, or automotive vehicles.

a) true

The armor of Type AC cable containing an aluminum bonding strip is recognized by the NEC as an equipment grounding conductor.

a) true

The arrangement of grounding connections shall be such that the disconnection or the removal of a receptacle, luminaire, or other device fed from the box does not interrupt the grounding continuity.

a) true

The common point on s Wye-connection in a poly-phase system describes a neutral point.

a) true

The conductor ampacity adjustment factors only apply to the number of current-carrying conductors in the cable and not to the number of conductors in the cable tray.

a) true

The cut ends of PVC conduit must be trimmed to remove the burrs and rough edges.

a) true

The electric vehicle supply equipment located outdoors shall be located to permit direct electrical coupling of the EV connector to the electric vehicle.

a) true

The equipment grounding conductor shall not be required to be larger than the circuit conductors.

a) true

The grounding electrode conductor for a single separately derived system is used to connect the grounded conductor of the derived system to the grounding electrode.

a) true

The grounding electrode for a separately derived system shall . be as near as practicable to, and preferably in the same area as, the grounding electrode conductor connection to the system

a) true

The grounding of electrical systems, circuit conductors, surge arresters, surge-protective devices, and conductive normally noncurrent-carrying metal parts of equipment shall be installed and arranged in a manner that will prevent objectionable current.

a) true

The maximum size conductors permitted in a metal surface raceway shall not be larger than that for which the wireway is designed.

a) true

The maximum size conductors permitted in a nonmetallic surface raceway shall not be larger than that for which the wireway is designed.

a) true

The patient care space of a health care facility does not typically include business offices, corridors, lounges, day rooms, dining rooms, or similar areas.

a) true

Threadless couplings and connectors used on threaded IMC ends shall be listed for the purpose.

a) true

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

a) true

Where optical fiber cable is capable of carrying current (composite optical fiber cable), the optical fiber cable must be installed in accordance with Articles 500, 501, 502, or 503.

a) true

Where the motor short-circuit and ground-fault protection devices determined by Table 430.52 do not correspond to the standard sizes or ratings, a higher rating that does not exceed the next higher standard ampere rating shall be permitted.

a) true

Where the outer sheath of Type MI cable is made of copper, it shall provide an adequate path to serve as an equipment grounding conductor.

a) true

Wiring for lighting located inside tents and concession areas at carnivals, circuses, and fairs, where subject to physical damage shall be provided with mechanical protection.

a) true

Wiring methods and equipment installed behind suspended ceiling panels shall be arranged and secured to allow access to the electrical equipment.

a) true

Wiring methods permitted in Class I, Division 1 locations are permitted in Class I, Division 2 locations.

a) true

Wiring methods used in health care locations must comply with the NEC Chapter 1 through 4 provisions, except as modified by Article 517.

a) true

where a branch circuit supplies continuous loads, or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less that the noncontinuous load plus 125 percent of the continuous load.

a) true

Examples of snow-melting resistance heaters include_________.

a) tubular heaters and strip heaters b) heating panels c) heating cables or heating tape d) all of these

For a circuit to be considered a multiwire branch circuit, it shall have_______.

a) two or more ungrounded conductors with a voltage potential between them b) a grounded conductor having equal voltage potential between it and each ungrounded conductor of the circuit c) a grounded conductor connected to the neutral or grounded terminal of the system d) all of these

The______of conductors used in prewired ENT manufactured assemblies shall be identified by means of a printed tag or label attached to each end of the manufactured assembly.

a) type b) size c) quantity d) all of these

Conductors are considered outside a building when they are installed_________.

a) under not less than 2 in. of concrete beneath a building or structure b) within a building or structure in a raceway encased in not less than a 2 in. thickness of concrete or brick c) installed in a vault that meets the construction requirements of Article 450, Part III d) all of these

Each sign and outline lighting system shall be controlled by an externally operable switch or circuit breaker that opens all _________conductors.

a) ungrounded

Means shall be provided to simultaneously disconnect all__________supply conductors to a phase converter.

a) ungrounded

Three-way and four-way switches shall be wired so that all switching is done only in the__________circuit conductor.

a) ungrounded

A power supply used to provide alternating current power to a load for some period of time in the event of a power failure is known as a(n)"_____."

a) uninterruptible power supply

Cable trays used to support service-entrance conductors shall contain only service-entrance conductors_________

a) unless a solid fixed barrier separates the service-entrance conductors from other conductors

Motor control circuit transformers, with a primary current rating of less than 2A, can have the primary protection device set at no more than____________percent of the rated primary current rating.

d) 500

Armored cable used to connect recessed luminaires or equipment within an accessible ceiling can be unsecured for lengths up to ft________.

d) 6

The maximum weight of a luminaire permitted t y screw o to be supported b the shell of a lampholder is________lb.

d) 6

Type MI cable shall be supported and secured at intervals not exceeding _______ft.

d) 6

When Type AC cable is run across the top of a floor joist in an attic without permanent ladders or stairs, guard strips within_______of the scuttle hole or attic entrance shall protect the cable.

d) 6 ft

A 15A or 20A, 125V receptacle outlet shall be located within 25 ft of heating, air-conditioning, and refrigeration equipment for_______occupancies.

(a) dwelling b) commercial c) industrial d) all of these

Type MC cable provides an effective ground-fault current path and is recognized by the NEC as an equipment grounding conductor when______.

(a) it contains an insulated or uninsulated equipment grounding conductor in compliance with 250.118(1) OR b) the combined metallic sheath and uninsulated equipment grounding/bonding conductor of interlocked metal tape-type MC cable is listed and identified as an equipment grounding conductor

Wiring shall be installed so that the completed system will be free from______, other than as required or permitted elsewhere in the Code.

(a) short circuits b) ground faults c) connections to the earth d) all of these

A ground ring encircling the building or structure can be used a grounding electrode when_______.

(a) the ring is in direct contact with the earth b) the ring consists of at least 20 ft of bare copper conductor c) the bare copper conductor is not smaller than 2 AWG d) all of these

For a separate building or structure supplied by a feeder or branch circuit, the grounded conductor can serve as the ground-fault return path for the building/structure disconnecting means for existing installations made in compliance with previous editions of the Code as long as the installation continues to meet the condition(s) that_______.

(a) there are no continuous metallic paths between buildings and structures b) ground-fault protection of equipment isn't installed on the supply side of the feeder c) the neutral conductor is sized no smaller than the larger required by 220.61 or 250.122 d) all of these

Circuit breakers shall be marked with their ampere rating in a manner that is durable and visible after installation. Such marking can be made visible by removal of a______

(a) trim OR b) cover

For equipment rated 1,200 A or more and over 6ft wide that contains overcurrent devices, or control devices, there shall be one entrance to and egress from the required working space not less than 24 in. wide and_____ high at each end of the working space.

6 1/2 ft.

An enclosure or piece of equipment constructed so that dust will not enter the enclosure under specified test conditions is known as "______."

A) dusttight

Noncombustible surfaces that are broken or incomplete shall be repaired so there will be no gaps or open spaces greater than_____in. at the edge of a cabinet or cutout box employing a flush-type cover.

C) 1/8

The minimum distance that an outlet box containing tap supply conductors is permitted to be placed from a recessed luminaire is______ft.

a) 1

Where service-entrance phase conductors are installed in parallel in two or more raceways, the size of the grounded conductor in each raceway shall be based on the total circular mil area of the parallel ungrounded service-entrance conductors in the raceway, sized in accordance with 250.24(C)(1), but not smaller than______.

a) 1/0 AWG

An exposed wiring system for indoor wet locations where walls are frequently washed shall be mounted so that there is at least a________between the mounting surface and the electrical equipment.

a) 1/4 in. airspace

The ampacity of a conductor can be different along the length of the conductor. The higher ampacity can be used beyond the point of transition for a distance of no more than______ft, or no more than_______percent of the circuit length figured at the higher ampacity, whichever is less.

a) 10,10

Transformer vaults containing more than______________total kVA transformer capacity shall be provided with a drain or other means that will carry off any accumulation of oil or water in the vault, unless impracticable.

a) 100

The ________ is the necessary equipment usually consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the load end of service conductors, and intended to constitute the main control and cutoff of the supply.

a) 100 Service Equipment

In dwelling units, the required bathroom receptacle outlet can be installed on the side or face of the basin cabinet if no lower than_______ in. below the top of the basin.

a) 12

Luminaires must maintain a minimum clearance from the closet storage space of__________.

a) 12 in. for surface-mounted incandescent or LED luminaires with a completely enclosed light source b) 6 in. for surface-mounted fluorescent luminaires c) 6 in. for recessed fluorescent luminaires or recessed incandescent or LED luminaires with a completely enclosed light source d) all of these

When connected to a branch circuit supplying two or more 15A receptacles, each receptacles shall not supply a total cord-and-plug-connected load in excess of______.

a) 12A

A building disconnecting means that supplies only limited loads of a single branch circuit shall have a rating of not less than___.

a) 15A

For installations that supply only limited loads of a single branch circuit, the service disconnecting means shall have a rating not less than_____.

a) 15A

Tap devices used in Type FC assemblies shall be rated not less than______or more than 300 volts-to-ground.

a) 15A

The rating of the attachment plug and receptacle shall not exceed_____________ at 250V for a cord-and-plug-connected air-conditioner motor-compressor.

a) 15A

The minimum size copper conductor permitted for Type MC cable is

a) 18 AWG

The standard ampere ratings for fuses includes_______.

a) 1A b) 6A c) 601A d) all of these

Galvanized steel, stainless steel, and red brass RMC shall be permitted in or under cinder fill subject to permanent moisture, when protected on all sides by a layer of noncinder concrete not less than________in. thick.

a) 2

A multipole, general-use snap switch shall not be fed from more than a single circuit unless it is listed and marked as a_______switch.

a) 2-circuit OR b) 3-circuit

The grounded conductor brought to service equipment shall be routed with the phase conductors and shall not be smaller than specified in Table______when the service-entrance conductors are 1,100 kcmil copper and smaller.

a) 250.102(C)(1)

Each tap conductor to a common grounding electrode conductor for multiple separately derived systems shall be sized in accordance with______,based on the derived ungrounded conductors of the separately derived system it serves.

a) 250.66

The size of the grounding electrode conductor for a building or structure supplied by a feeder shall not be smaller than that identified in______, based on the largest ungrounded supply conductor.

a) 250.66

Capacitors containing more than _______ gallons of flammable liquid shall be enclosed in vaults or outdoor fenced enclosures.

a) 3

Conduits and raceways, including end fittings, shall not rise more than_______in. above the bottom of a switchboard enclo sure.

a) 3

Overhead service conductors to a building shall maintain a vertical clearance of final spans above, or within,_______if measured horizontally from the platforms, projections, or surfaces from which they might be reached.

a) 3

Where run horizontally, nonmetallic wireways shall be supported at each end, at intervals not to exceed______ft, and at each joint, unless listed for other support intervals.

a) 3

Listed outlet boxes to support ceiling-suspended fans that weigh more than_______lb shall have the maximum allowable weight marked on the box.

a) 35

A professional motion picture projector is one that uses_______ film and has on each edge 212 perforations per meter, or a type using carbon arc, xenon, or other light source equipment that develops hazardous gases, dust, or radiation.

a) 35 mm OR b) 70 mm

34. Under the optional method for calculating a single-family dwelling service, general loads beyond the initial 10 kVA are assessed at a percent demand factor.

a) 40

A demand factor of_________percent applies to a multifamily dwelling with ten units if the optional calculation method is used.

a) 43

Where fixed multioutlet assemblies are used in other than dwelling units or the guest room of hotels or motels, each _______or fraction thereof of each separate and continuous lengthh shall be considered as one outlet of not less than 180 VA where appliances are unlikely to be used simultaneously.

a) 5 ft

A circuit breaker having an interrupting current rating of other than_____shall have its interrupting rating marked on the circuit breaker.

a) 5,000A

AC or dc general-use snap switches may be used for control of inductive loads not exceeding________percent of the ampere rating of the switch at the applied voltage.

a) 50

The total rating of utilization equipment fastened in place shall not exceed______ percent of the branch-circuit ampere rating where lighting units and cord-and-plug-connected utilization equipment are supplied.

a) 50A

Closet storage space is defined as a volume bounded by the sides and back closet walls extending from the closet floor vertically to a height of_______ft or the highest clothes-hanging rod at a horizontal distance of 2 ft from the sides and back of the closet walls.

a) 6

Conductors smaller than 8 AWG for open wiring on insulators shall be supported within_______in. of a tap or splice.

a) 6

Portable distribution and termination boxes installed outdoors at carnivals, circuses, or fairs shall be weatherproof and mounted so the bottom of the enclosure is not less than_________in. above the ground.

a) 6

Rigid metal Conduit that is directly buried outdoors shall have at least________in. of cover.

a) 6

Type UF cable used with a 24V landscape lighting system can have a minimum cover of_________in.

a) 6

For Type NM and NMC cable, the conductor ampacity used for ambient temperature correction [310.15(B)(2)(a)]. conductor bundling adjustment [310.15(B)(3)(a)], or both, is based on the 90°C conductor insulation rating [310.15(B)(2)], provided the adjusted or corrected ampacity doesn't exceed that of a___________rated conductor.

a) 60

Fixed electric space-heating equipment requiring supply conductors with insulation rated over________shall be clearly and permanently marked.

a) 60°C

Type AC cable installed in thermal insulation shall have conductors that are rated at 90°C. The ampacity of the cable in this application shall not exceed that of a_______rated conductor.

a) 60°C

THWN insulated conductors are rated____.

a) 75°C AND b) for wet locations

If the circuit's overcurrent device exceeds ______, the conductor ampacity must have a rating not less than the rating of the over-current device.

a) 800 A

Which of the following statements about Type S fuses are true?

a) Adapters shall fit Edison-base fuseholders AND c) Type S fuses shall be classified as not over 125V and 30A

For attics and underfloor space in other than dwilling units that contain heating, air-conditioning, and refrigeration equipment requiring servicing, at least one lighting outlet containig a switch or controlled by a wall switch shall be installed __________ the equipment requiring serviving.

a) At or b) near

The number of conductors permitted in PVC conduit shall not exceed the percentage fill specified in____________.

a) Chapter 9, Table 1

In Class I, Division 1 locations, control transformers, impedance coils, and resistors, along with any switching mechanism associated with them, shall be provided with enclosures identified for________.

a) Class I, Division 1 locations

To determine the feeder calculated load for ten 3 kW household cooking appliances, use _________ of table 220.55.

a) Collumn A

In major repair garages where ventilation is not provided in accordance with 511.3(C)(3)(a), any pit or depression below floor level shall be a Class I,_________location that extends up to the floor level.

a) Division 1

Letters used to designate the number of conductors within a cable are_______.

a) D—Two insulated conductors laid parallel AND b) M—Two or more insulated conductors twisted spirally

Type NM cable shall be protected from physical damage by_____.

a) EMT b) Schedule 80 PVC conduit c) RMC d) any of these

The ampacity adjustment factors of Table 310.15(B)(3)(a) do not apply to Type AC or Type MC cable without an overall outerjacket, if which of the following conditions are met?

a) Each cable has not more than three current-carrying con-ductors. b) The conductors are 12 AWG copper. c) No more than 20 current-carrying conductors are installed without maintaining spacing. d) all of these

Suitability of identified equipment for use in a hazardous (classified) location shall be determined by:

a) Equipment listing or labeling. b) Evidence of equipment evaluation from a qualified testing laboratory or inspection agency concerned with product evaluation. c)Evidence acceptable to the authority having jurisdiction, such as a manufacturer's self-evaluation or an owner's engineering judgment. d) any of these

Acceptable protection techniques for electrical and electronic equipment in hazardous (classified) locations includes:

a) Explosionproof Equipment b) Dust-lgnitionproof c) Dusttight d) all of these

Manufactured wiring systems shall be permitted in________locations.

a) accessible AND b) dry

Equipment bonding jumpers on the supply side of the service shall be no smaller than the sizes shown in_____.

a) Table 250.102(C)(1)

Main bonding jumpers and system bonding jumpers shall not be smaller than specified in____.

a) Table 250.102(C)(1)

A building or structure shall have the interior metal water piping system bonded with a conductor sized in accordance with_______.

a) Table 250.66

The bonding jumper used to bond the metal water piping system shall be sized in accordance with_____.

a) Table 250.66

When sealing fittings are required for Class I locations, they shall comply with which of the following rule(s)?

a) They shall be listed for Class I locations and shall be accessible. b) The minimum thickness of the sealing compound shall not be less than the trade size of the sealing fitting and, in no case, shall the thickness of the compound be less than 5/8 in. c) Splices and taps shall not be made in the conduit seal. d) all of these

Each current-carrying conductor of a paralleled set of conductors shall be counted as a current-carrying conductor for the purpose of applying the adjustment factors of 310.15(B)(3)(a).

a) True

Lighting systems operating at 30V or less shall be listed or assembled with listed components.

a) True

NFPA 70E-Standard for electrical Safety in the Workplace, provides information to help determine the electrical safety training requirements expected of a qualified person.

a) True

The 3 VA per-square-foot general lighting load for dwelling units includes general-use receptacles and lighting outlets.

a) True

Type FC cable is an assembly of parallel conductors with an insulating material specifically designed for field installation in surface metal raceways.

a) True

Where a building or structure is supplied by more than one service, a permanent plaque or directory shall be installed at each service disconnect location denoting all other services supplying that building or structure and the area served by each.

a) True

Where a mast is used for overhead branch-circuit or feeder conductor support, it shall be of adequate strength or be supported by braces or guy wire to withstand safely the strain imposed by the conductors.

a) True

Luminaires containing a metal halide lamp (other than a thick-glass PAR lamp) shall be provided with a containment barrier that encloses the lamp, or shall be provided with a physical means that only allows the use of a(n)________.

a) Type 0 lamp

Electrical equipment shall not be connected to the supply side of the service disconnecting means, except for a few specific exceptions such as ___.

a) Type 1 surge protective devices b) taps used to supply standby power systems, fire pump equipment, fire and sprinkler alarms, and load (energy) management devices c) solar photovoltaic systems d) all of these

Manufactured wiring systems shall be constructed with_________.

a) Type AC cable OR b) Type MC cable

Where IMC enters a box, fitting, or other enclosure, shall be provided to protect the wire from abrasion unless the design of the box, fitting, or enclosure affords equivalent protection.

a) a bushing

Where RMC enters a box, fitting, or other enclosure,______shall be provided to protect the wire from abrasion, unless the design of the box, fitting, or enclosure affords equivalent protection.

a) a bushing

In multi-occupancy buildings, branch circuits for______ shall not be supplied from equipment that supplies an individual dwelling unit or tenant space.

a) a central alarm b) parking lot lighting c) common area purposes d) all of these

Tap connections to a common grounding electrode conductor for multiple separately derived systems shall be made at an accessible location by_______.

a) a connector listed as grounding and bonding equipment b) listed connections to aluminum or copper busbars c) the exothermic welding process d) any of these

An equipment grounding conductor shall be identified by______,

a) a continuous outer finish that is green b) being bare c) a continuous outer finish that is green with one or more yellow stripes d) any of these

If grounded conductors of different voltage systems are installed in the same raceway, cable, or enclosure, each neutral conductor must be identified to distinguish the systems by_____.

a) a continuous white or gray outer finish for one system b) a neutral conductor with different continuous white or gray outer finish or white or gray with a stripe for one system c) other identification allowed by 200.6 (a) or (b) that distinguishes each system from other systems d) any of these

A connection between equipment grounding conductors and a metal box shall be by_______.

a) a grounding screw used for no other purpose b) equipment listed for grounding c) a listed grounding device d) any of these

Effective January 1, 2014, where a receptacle outlet is supplied by a branch circuit that requires arc-fault circuit-interrupter protection [210.12(A)], a replacement receptacle at this outlet shall be.

a) a listed (receptacle) outlet branch circuit type arc-fault circuit-interrupter receptacle b) a receptacle protected by a listed (receptacle) outlet blanch-circuit type arc-fault circuit-interrupter type receptacle c) a receptacle protected by a listed combination type arc-fault circuit-interrupter type circuit breaker d) all cat these

Electrical equipment with__________and having adequate fireresistant and low-smoke-producing characteristics can be installed within an air-handling space (plenum).

a) a metal enclosure OR b) a nonmetallic enclosure listed for use within an air-handling (plenum) space

Service heads shall be located______the point of attachment, unless impracticable.

a) above

Steel or aluminum cable tray systems shall be permitted to be used as an equipment grounding conductor, provided the cable tray sections and fittings are identified as , among other requirements.

a) an equipment grounding conductor

Ballasts, transformers, electronic power supplies, and Class 2 power sources for signs can be located above a suspended ceilling, provided the enclosures__________.

a) are securely fastened in place AND b) don't use the suspended-ceiling grid for support

Outside feeder tap conductors can be of unlimited length with-out overcurrent protection at the point they receive their supply if the tap conductors_______.

a) are suitably protected from physical damage AND b) terminate at a single circuit breaker or a single set of fuses that limits the load to the ampacity of the conductors

Outside secondary conductors can be of unlimited length with-out overcurrent protection at the point they receive their supply if the conductors______.

a) are suitably protected from physical damage AND b) terminate at a single circuit breaker or a single set of fuses that limits the load to the ampacity of the conductors

Splices and taps shall not be located within luminaire________.

a) arms or stems

LFMC shall be supported and secured________.

a) at intervals not exceeding 4 1/2 ft

FMC shall be supported and secured________.

a) at intervals not exceeding 4 1/2 ft.

Electrical connections in marinas and boatyards shall be located________unless the conductor splices are contained within sealed wire connector systems listed and identified for submersion.

a) at least 12 in. above the deck of a floating pier b) at least 12 in. above the deck of a fixed pier c) not below the electrical datum plane of a fixed pier d) all of these

An electrode encased by at least 2 in. of concrete, located horizontally near the bottom or vertically and within that portion of a concrete foundation or footing that is in direct contact with the earth, shall be permitted as a grounding electrode when it consists of______.

a) at least 20 ft of /2 in. or larger steel reinforcing bars or rods OR (b) at least 20 ft of bare copper conductor of 4 AWG or larger

A device that establishes a connection between the conductors of the attached cord and the conductors connected to the receptacle is called a (n)"_______".

a) attachment plug b) plug cap c) plug d) any these

GFCI protection shall be provided for all 15A and 20A, 125V receptacles installed in dwelling unit_____.

a) attic b) garage c) laundry room d) all of these

For a one-family dwelling, at least one receptacle outlet shall be installed in each _________.

a) basement b) attached garage c) detached garage or accessory building with electric power d) all of these

Ground-fault circuit-interrupter protection for personnel shall be provided for cables installed in electrically heated floors of_________.

a) bathrooms b) hydromassage bathtub locations c) kitchens d) all of these

The standard length of RMC shall________.

a) be 10 ft b) include a coupling on each length c) be threaded on each end d) all of these

The intersystem bonding termination shall _______.

a) be accessible for connection and inspection b) consist of a set of terminals with the capacity for connection of not less than three intersystem bonding conductors c) not interfere with opening the enclosure for a service, building/ structure disconnecting means, or metering equipment d) all of these

To prevent moisture from entering service equipment, service-entrance conductors shall ___.

a) be connected to service-drop conductors below the level of the service head AND b) have drip loops formed on the individual service-entrance conductors

In walls or ceilings constructed of wood or other combustible surface material, boxes, plaster rings, extension rings, or listed extenders shall________.

a) be flush with the surface OR b) project from the surface

In Class III locations, flexible cords shall

a) be listed as extra-hard usage b) contain an equipment grounding conductor c) terminate with a listed dusttight cord connector d) all of these

Flexible cords and flexible cables used for temporary wiring shall.

a) be protected from accidental damage b) be protected where passing through doorways c) avoid sharp corners and projections d) all of these

Bare Type FCC cable ends shall_____.

a) be sealed b) be insulated c) use listed insulating ends d) all of these

The intersystem bonding termination shall________.

a) be securely mounted and electrically connected to service equipment, the meter enclosure, or exposed nonflexible metallic service raceway, or be mounted at one of these enclosures and be connected to the enclosure or grounding electrode conductor with a minimum 6 AWG copper conductor b) be securely mounted to the building/structure disconnecting means, or be mounted at the disconnecting means and be connected to the metallic enclosure or grounding electrode conductor with a minimum 6 AWG copper conductor c) have terminals that are listed as grounding and bonding equipment d) all of these

Electrically conductive materials that are likely to_________in ungrounded systems shall be connected together and to the supply system grounded equipment in a manner that creates a low-impedance path for ground-fault current that is capable of carrying the maximum fault current likely to be imposed on it.

a) become energized

Outlet boxes can be secured to suspended-ceiling framing members by mechanical means such as ________,or by other means identified for the suspended-ceiling framing member(s).

a) bolts b) screws c) rivets d) any of these

Luminaires attached to the framing of a suspended ceiling shall be secured to the framing member(s) by mechanical means such as________.

a) bolts b) screws c) rivets d) any of these

Cablebus framework that is_____shall be permitted as the equipment grounding conductor for branch circuits and feeders.

a) bonded

Electrical continuity at service equipment, service raceways, and service conductor enclosures shall be ensured by_______.

a) bonding equipment to the grounded service conductor b) connections utilizing threaded couplings on enclosures, if made up wrenchtight c) other listed bonding devices, such as bonding-type locknuts, bushings, or bushings with bonding jumpers d) any of these

Underground raceways entering a_____ from an underground distribution system shall be sealed or plugged at either or both ends to prevent moisture from contacting energized live parts.

a) building or b) structure

Internal parts of electrical equipment, including __________, shall not be damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives, or corrosive residues.

a) busbars b) wiring terminals c) insulators d) all of these

IMC must be secured________.

a) by fastening within 3 ft of each outlet box, junction box, device box, cabinet, conduit body, or other conduit termination OR b) within 5 ft of a box or termination fitting when structural members don't permit the raceway to be secured within 3 ft of the termination OR c) except when the IMC is within 3 ft of the service head for an above-the-roof termination of a mast d) a, b, or c

Knife switches rated for more than 1,200A at 250V or less___________.

a) can be used only as isolating switches AND b) shall not be opened under load

Nominal battery voltage, as it relates to storage batteries, is the value of a(n)___________of a given voltage class for convenient designation.

a) cell or battery

Conductor overload protection shall not be required where the interruption of the ______ would create a hazard, such as in a material-handling magnet circuit or fire pump circuit. However, short-circuit protection is required.

a) circuit

A________must be used to serve as the required shore power receptacle disconnecting means and it must be identified as to which receptacle it controls.

a) circuit breaker OR b) switch

Openings in cabinets, cutout boxes, and meter socket enclosures through which conductors enter shall be_______.

a) closed in an approved manner

A vending machine is defined as any self-service device that dispenses products or merchandise without the necessity of replenishing the device between each vending operation and designed to require insertion of a_______.

a) coin or paper currency b) token or card c) key or payment by other means d) all of these

The independent support wires for supporting electrical wiring methods in a fire-rated ceiling assembly shall be distinguish-able from fire-rated suspended-ceiling framing support wires by______.

a) color b) tagging c) other effective means d) any of these

Where a premises wiring system contains feeders supplied from more than one nominal voltage system, each ungrounded conductor of a feeder shall be identified by phase or line and system by _____,or other approved means.

a) color coding b) marking tape c) tagging d) any of these

Class II locations are those that are hazardous because of the presence of________ .

a) combustible dust

Table 220.56 may be applied to determine the load for thermostatically controlled or intermittently used_____and other kitchen equipment in a commercial kitchen.

a) commercial electric cooking equipment b) dishwasher booster heaters c) water heaters d) all of these

LFMC shall not be required to be secured or supported where fished between access points through___________spaces in finished buildings or structures and supporting is impractical.

a) concealed

Unbroken lengths of electric nonmetallic tubing shall not be required to be secured where fished between access points for _________work in finished buildings or structures and supporting is impractical.

a) concealed

Inserts for cellular metal floor raceways shall be leveled to the floor grade and sealed against the entrance of________.

a) concrete

The next higher standard rating overcurrent device above the ampacity of the ungrounded conductors being protected shall be permitted to be used, provided the_______.

a) conductors are not part of a branch circuit supplying more than one receptacle for cord-and-plug-connected portable loads b) ampacity of the conductors doesn't correspond with the standard ampere rating of a fuse or circuit breaker c) next higher standard rating selected doesn't exceed 800A d) all of these

Switches controlling line-to-neutral lighting loads must have a grounded conductor provided at the switch location unless the______.

a) conductors enter the device box through a raceway that has sufficient area to accommodate a grounded conductor OR b) box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials

In grounded systems, normally noncurrent-carrying electrically conductive materials that are likely to become energized shall be_______in a manner that establishes an effective ground-fault current path.

a) connected together AND b) connected to the electrical supply source 71

Grounding electrode conductors shall be installed in one continuous length without a splice or joint, unless spliced by_______.

a) connecting together sections of a busbar b) irreversible compression-type connectors listed as grounding and bonding equipment c) the exothermic welding process d) any of these

Utilization equipment is equipment that utilizes electricity for_______purposes.

a) electromechanical b) heating c) lighting d) any of these

Equipment and devices shall only be permitted within ducts or plenum chambers specifically fabricated to transport environ-mental air if necessary for their direct action upon, or sensing of, the_____.

a) contained air

A hermetic motor-compressor controller shall have a_________________current rating not less than the respective nameplate rating(s) on the compressor.

a) continuous-duty full-load AND b) locked-rotor

The difference in construction between Type NM cable and Type NMC cable is that Type NMC cable is______, which Type NM is not.

a) corrosion resistant AND c) fungus resistant

In completed installations, each outlet box shall have a________.

a) cover b) faceplate c) canopy d) any of these

An outdoor receptacle in a location protected from the weather, or in another damp location, shall be installed in an enclosure that is weatherproof when the receptacle is__________.

a) covered

Switches shall be marked with________.

a) current b) voltage c) maximum horsepower, if horsepower rated d) all of these

A(n)________shall be considered equivalent to an overcurrent trip unit for the purpose of providing overcurrent protection of conductors.

a) current transformer AND b) overcurrent relay

Backfill used for underground wiring shall not_________.

a) damage the wiring method b) prevent compaction of the fill c) contribute to the corrosion of the raceway d) all of these

Lampholders installed in damp locations shall be listed for use in_____________locations.

a) damp OR b) wet

Article 410 covers luminaires, portable luminaires, lampholders, pendants, incandescent filament lamps, arc lamps, electric-discharge lamps, and___________,and the wiring and equipment forming part of such products and lighting installations.

a) decorative lighting products b) lighting accessories for temporary seasonal and holiday use c) portable flexible lighting products d) all of these

General-use______switches shall be used only to control permanently installed incandescent luminaires unless listed for control of other loads and installed accordingly.

a) dimmer

Type MC Cable listed for_____is permitted to be installed underground under a building without installation in a raceway.

a) direct burial

The use of LFMC shall be permitted for_______.

a) direct burial where listed and marked for the purpose b) exposed work c) concealed work d) all of these

In a multiple-occupancy building, each occupant shall have access to his or her own__________.

a) disconnecting means

When an outlet is__________from a cellular concrete floor raceway, the sections of circuit conductors supplying the outlet shall be removed from the raceway.

a) discontinued b) abandoned c) removed d) any of these

HDPE shall be permitted in________.

a) discrete lengths OR b) continuous lengths from a reel

Ventilation openings for transformer vaults must be located as far as possible from________.

a) doors b) windows c) combustible material d) any of these

Generators must have a disconnecting means that is lockable in the open position, except where the_________.

a) driving means for the generator can be readily shut down, is rendered incapable of restarting, and is lockable in the OFF position AND b) generator isn't arranged to operate in parallel with another generator or other source of voltage

Where flexibility is required, the following wiring methods are permitted in a Class II, Division 1 location__________.

a) dusttight flexible connectors b) liquidtight flexible metal conduit with listed fittings c) flexible cords listed for extra-hard usage with listed dusttight cord connectors d) any of these

In Class II, Division 2 locations, enclosures for fuses, switches, circuit breakers, and motor controllers, including pushbuttons, relays, and similar devices shall be__________.

a) dusttight or otherwise identified for the location

Overcurrent devices aren't permitted to be located in the bathrooms of________.

a) dwelling units b) dormitories c) guest rooms or guest suites of hotels or motels d) all of these

The Code contains provisions considered necessary for safety, which will not necessarily result in________.

a) efficient use b) convenience c) good service or future expansion of electrical use d) all of these

All 15A and 20A, 125V receptacles located outdoors of dwelling units, including receptacles installed under the eaves of roofs, must be GFCI protected except for a receptacle that's supplied by a branch circuit dedicated to_____if the receptacle isn't readily accessible and the equipment or receptacle has ground-fault protection of equipment (GFPE) [426.28 or 427.22].

a) electric snow-melting or deicing equipment OR b) pipeline and vessel heating equipment

All 15A and 20A, 125V receptacles located outdoors or on roof-tops in locations other than dwelling units must be GFCI protected except for a receptacle that's supplied by a branch circuit dedicated to_______ if the receptacle isn't readily accessible and the equipment or receptacle has ground-fault protection of equipment (GFPE) [426.28 and 427.22].

a) electric snow-melting or deicing equipment OR b) pipeline and vessel heating equipment

Bonding shall be provided where necessary to ensure__________and the capacity to conduct safely any fault current likely to be imposed.

a) electrical continuity

All 15A and 20A, 125V receptacles installed in aircraft hangars in areas where___________ is(are) used shall have GFCI protection for personnel.

a) electrical diagnostic equipment b) electrical hand tools c) portable lighting equipment d) any of these

Aluminum raceways, cable trays, cablebus, auxiliary gutters, cable armor, boxes, cable sheathing, cabinets, elbows, cou-plings, nipples, fittings, supports, and support hardware________shall be provided with supplementary corrosion protection.

a) embedded or encased in concrete OR b) in direct contact with the earth

ENT and fittings can be______, provided fittings identified for this purpose are used.

a) encased in poured concrete OR b) embedded in a concrete slab on grade where the tubing is placed on sand or approved screenings

Capacitors shall be___________so that persons cannot come into accidental contact or bring conducting materials into accidental contact with exposed energized parts, terminals, or buses associated with them.

a) enclosed b) located c) guarded d) any of these

Working space distances for enclosed live parts shall be measured from the______of equipment or apparatus, if the live parts are enclosed.

a) enclosure OR b) opening

Conductors of ac and dc circuits, rated 1,000V or less, shall be permitted to occupy the same______provided that all conductors have an insulation rating equal to the maximum voltage applied to any conductor.

a) enclosure b) cable c) raceway d) any of these

In damp or wet locations of agricultural buildings, equipment enclosures and fittings shall be located or equipped to prevent moisture from_______within the enclosure, box, conduit body, or fitting.

a) entering OR b) accumulating

A(n)________shall be used to connect the grounding terminal of a grounding-type receptacle to a grounded box.

a) equipment bonding jumper

Grounding-type attachment plugs shall be used only with a cord having a(n) _________ conductor.

a) equipment grounding

Auxiliary grounding electrodes can be connected to the___________.

a) equipment grounding conductor

For a separate building or structure supplied by a separately derived system when overcurrent protection is provided where the conductors originate, the supply conductors must contain a(n)______.

a) equipment grounding conductor

When LFNC is used, and equipment grounding is required, a separate______shall be installed in the conduit.

a) equipment grounding conductor

Electrical equipment such as switchboards, switchgear, panel-boards, industrial control panels, meter socket enclosures, and motor control centers, that are in other than dwelling units, and are likely to require_______while energized, shall be field or factory marked to warn qualified persons of potential electric arc flash hazards.

a) examination b) adjustment c) servicing or maintenance d) any of these

The patient care space is any space within a health care facility where patients are intended to be_____________.

a) examined OR b) treated

Intrinsically safe conduit or cable runs that leave a Class I or II location shall be sealed. The seal shall be________.

a) explosionproof or flameproof b) flameproof c) a and b d) none of these

Cable trays shall be_________ except as permitted by 392.10(D).

a) exposed AND b) accessible

Wireways shall be permitted for___________.

a) exposed work AND c) wet locations if listed for the purpose

Snap switches installed in boxes shall have the______seated against the finished wall surface.

a) extension plaster ears

Feeders to floating buildings can be installed with________where flexibility is required.

a) extra-hard usage portable power cable listed for both wet locations and sunlight resistance b) LFMC with approved fittings c) LFNC with approved fittings d) all of these

Each Type FCC transition assembly shall incorporate means for_______.

a) facilitating the entry of the Type FCC cable into the assembly b) connecting the Type FCC cable to the grounded conductors c) electrically connecting the assembly to the metal cable shields and equipment grounding conductors d) all of these

Type MC cable can be unsupported where the cable is_______.

a) fished between concealed access points in finished buildingigs or structures and support is impracticable OR c) not more than 6 ft from the last point of support within an accessible ceiling for the connection of luminaires or other electrical equipment

At Type AC cable terminations, a(n)__________ shall be provided.

a) fitting (or box design) that protects the conductors from abrasion AND b) insulating bushing between the conductors and the cable armor

Where raceways or cables enter above the level of uninsulated live parts of cabinets, cutout boxes, and meter socket enclo-sures in a wet location, a(n) _______shall be used.

a) fitting listed for wet locations

PVC conduit and fittings for use above ground shall be________.

a) flame retardant b) resistant to low temperatures and sunlight c) resistant to distortion from heat d) all of these

As defined by 230.95, the rating of the service disconnect shall be considered to be the rating of the largest ___that can be installed or the highest continuous current trip setting for which the actual overcurrent device installed in a circuit breaker is rated or can be adjusted.

a) fuse

A "_______" is a building or portion of a building in which one or more self-propelled vehicles can be kept for use, sale, storage, rental, repair, exhibition, or demonstration purposes.

a) garage

Chapters 1 through 4 of the NEC apply________.

a) generally to all electrical installations

Conductors with the color______insulation shall not be used for ungrounded or grounded conductors.

a) green OR b) green with one or more yellow stripes

Alternating current systems from 50V to less than 1,000V that aren't required to be grounded in accordance with 250.20(b) must have_____.

a) ground detectors installed AND b) the ground detection sensing equipment connected as close as practicable to where the system receives its supply

Each_______conductor shall terminate within the panelboard at an individual terminal that is not used for another conductor.

a) grounded

One conductor of flexible cords intended to be used as a(n)__________conductor shall have a continuous marker readily distin-guishing it from the other conductors. One means of identification is a braid finished to show a white or gray color on one conductor.

a) grounded circuit

No____ shall be attached to any terminal or lead so as to reverse the designated polarity.

a) grounded conductor

The screw shell of a luminaire or lampholder shall be connected to the_____.

a) grounded conductor

Metal water piping system(s) shall be bonded to the______.

a) grounded conductor at the service OR b) service equipment enclosure

The frame of a portable generator shall not be required to be connected to a(n)______if the generator only supplies equip-ment mounted on the generator, or cord-and-plug connected equipment using receptacles mounted on the generator, or both.

a) grounding electrode

The frame of a vehicle-mounted generator shall not be required to be connected to a(n)______if the generator only supplies equipment mounted on the vehicle or cord-and-plug connected equipment, using receptacles mounted on the vehicle.

a) grounding electrode

Handles or levers of circuit breakers, and similar parts that may move suddenly in such a way that persons in the vicinity are likely to be injured by being struck by them, shall be______.

a) guarded OR b) isolated

GFCI protection shall be provided for all 15A and 20A, 125V receptacles in dwelling unit accessory buildings that have a floor located at or below grade level not intended as____ and limited to storage areas, work areas, or similar use.

a) habitable rooms

For pendants in an aircraft hangar, not installed in Class I locations, flexible cords suitable for the type of service and identified for__________shall be used.

a) hard usage OR b) extra-hard usage

Poles over 20 ft in height above grade, without a hinged base, that support luminaires shall______.

a) have an accessible handhole (sized 2 x 4 in.) with a cover suitable for use in wet locations AND b) have an equipment grounding terminal that is accessible from the handhole

Means shall be provided to simultaneously disconnect the_______of all fixed electric space-heating equipment from all ungrounded conductors.

a) heater b) motor controller(s) c) supplementary overcurrent device(s) d) all of these

Receptacles mounted in boxes flush with the finished surface or projecting beyond it shall be installed so that the mounting yoke or strap of the receptacle is_______.

a) hold rigidly against the box or box cover

Electric space-heating cables shall not be installed over cabinets whose clearance from the ceiling is less than the minimum_________dimension of the cabinet to the nearest cabinet edge that is open to the room or area.

a) horizontal

If a motor disconnecting means is a motor-circuit switch, it shall be rated in_________.

a) horsepower

Article 517 applies to electrical construction and installation criteria in health care facilities that provide services to__________.

a) human beings

Where conduits are used as service masts, hubs shall be ___for use with service entrance equipment.

a) identified

In Class II, Division 1 locations, motors, generators, and other rotating electrical machinery shall be___________.

a) identified for the location OR b) totally enclosed pipe-ventilated

Wireways can pass transversely through a wall_________.

a) if the length passing through the wall is unbroken

Meters, instruments and relays installed in Class I, Division 2 locations can have switches, circuit breakers, and make-and-break contacts installed in general-purpose enclosures if current-interrupting contacts are__________________.

a) immersed in oil b) enclosed within a hermetically sealed chamber

Bends shall be made in HDPE conduit_________.

a) in a manner that will not damage the raceway AND b) so as not to significantly reduce the internal diameter of the raceway

The header on a cellular concrete floor raceway shall be installed______to the cells.

a) in a straight line AND b) at right angles

Surface metal raceways and associated fittings shall be supported____________.

a) in accordance with the manufacturer's installation instructions

All 15A and 20A, 125V receptacles______of commercial occupancies shall have GFC1 protection.

a) in bathrooms b) on rooftops c) in kitchens d) all of these

A strut-type channel raceway shall not be installed____________.

a) in concealed locations OR b) where subject to corrosive influences, if enamel is the only protection from corrosion of ferrous channel raceways and fittings

Armored cable shall not be installed______.

a) in damp or wet locations b) where subject to physical damage c) where exposed to corrosive conditions d) all of these

NUCC shall not be used

a) in exposed locations b) inside buildings c) in hazardous (classified) locations d) all of these

PVC conduit shall not be used_______,unless specifically permitted.

a) in hazardous (classified) locations b) for the support of luminaires or other equipment c) where subject to physical damage unless identified for such used d) all of these

Constant-voltage generators, except ac generator exciters, shall be protected from overload by_______or other acceptable over-current protective means suitable for the conditions of use.

a) inherent design b) circuit breakers c) fuses d) any of these

Raceways shall be_____between outlet, junction, or splicing points prior to the installation of conductors.

a) installed complete

Exposed secondary circuits of lighting systems operating at 30V or less shall be________.

a) installed in a Chapter 3 wiring method b) supplied by a Class 2 power source and shall use Class 2 cable in accordance with Article 725 c) at least 7 ft above the finished floor unless listed for a lower installation height d) any of these

Fixed wiring in an aircraft hangar not in a Class I location shall be__________.

a) installed in metal raceways OR b) Type MI, TC, or MC cable

GFCI protection shall be provided for all 15A and 20A, 125V receptacles_______in dwelling unit kitchens.

a) installed to serve the countertop surfaces

The receptacle grounding terminal of an isolated ground receptacle shall be connected to a(n)___________equipment grounding conductor run with the circuit conductors.

a) insulated

Premises wiring includes________wiring from the service point or power source to the outlets.

a) interior AND b) exterior

The highest current rated voltage that a device is identified to interrupt under standard test conditions is the_____.

a) interrupting rating

When a permanently installed generator ______,the requirements of 250.30 apply.

a) is a separately derived system

In industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, Type ITC-HL cable is allowed to be used in a Class I, Division 1 location if it________and installed in accordance with the provisions of Article 727.

a) is listed for use in Class I, Zone 1, or Division 1 locations b) has a gas/vaportight continuous corrugated metallic sheath and an overall jacket of suitable polymeric material c) is terminated with fittings listed for the application d) all of these

Flexible cords and cables shall be connected to fittings so that tension will not be transmitted to joints or terminal screws by______.

a) knotting the cord b) winding the cord with tape c) fittings designed for the purpose d) any of these

GFCI protection shall be provided for all 15A and 20A, 125V receptacles installed within 6ft. of all dwelling unit sinks located in______.

a) laundry rooms b) bathrooms c) dens d) all of these

Parallel conductors shall have the same______.

a) length b) material c) size in circular mil area d) all of these

For cellular concrete floor raceways, junction boxes shall be__________the floor grade and sealed against the free entrance of water or concrete.

a) leveled to

Flat cable assemblies can supply tap devices for____loads.

a) lighting b) small appliance c) small power d) any of these

In rooms other than kitchens and bathrooms of dwelling units, one or more receptacles controlled by a wall switch shall be permitted in lieu of________.

a) lighting outlets

Grounded electrical systems shall be connected to earth in amanner that will _______.

a) limit voltages due to lightning, line surges, or unintentional contact with higher-voltage lines AND b) stabilize the voltage-to-ground during normal operation

For raceways terminating at a cable tray, a(n)________cable tray clamp or adapter shall be used to securely fasten the raceway to the cable tray system.

a) listed

NUCC and its associated fittings shall be_______.

a) listed

Where exposed to sunlight, nonmetallic raceways, cable trays, boxes, cables with a nonmetallic outer jacket, fittings, and sup-port hardware shall be______.

a) listed as sunlight resistant OR b) identified as sunlight resistant

In a Class I, Division 2 location, if flexibility is necessary,___________ are some of the wiring methods that are permitted.

a) listed flexible metal fittings b) flexible metal conduit, liquidtight flexible metal conduit and liquidtight nonmetallic conduit, all with listed fittings c) interlocked armor Type MC cable with listed fittings d) all of these

Where nonmetallic wiring methods are subject to exposure to chemical solvents or vapors, they shall be inherently resistant to chemicals based upon their being ______.

a) listed for the chemical OR b) identified for the chemical

The grounding conductor connection to the grounding electrode shall be made by________.

a) listed lugs b) exothermic welding c) listed pressure connectors d) any of these

Connections from cellular concrete floor raceway headers to cabinets shall be made by means of___________.

a) listed metal raceways AND c) listed fittings

Equipment grounding conductors, grounding electrode conductors, and bonding jumpers shall be connected by_____.

a) listed pressure connectors b) terminal bars c) exothermic welding d) any of these

The grounding electrode conductor shall be connected to the grounded service conductor at the_____.

a) load end of the service drop b) load end of the service lateral c) service disconnecting means d) any of these

To guard live parts operating at 50V must be guarded by being ______.

a) located in a room accessible only to qualified persons b) located on a balcony accessible only to qualified persons c) elevated 8 ft or more above the floor or other working sur-face for 50V to 300V d) any of these

Wall-mounted ovens and counter-mounted cooking units shall be permitted to be_______.

a) permanently connected OR b) cord-and-plug-connected

Unless identified for use in the operating environment, no conductors or equipment shall be____having a deteriorating effect on the conductors or equipment.

a) located in dam or wet locations b) exposed to fumes, vapors, liquids or gases c) esposed to exessive temperatures d) all of these

Electrical service equipment at carnivals and circuses shall not be accessible to unqualified persons, unless________.

a) lockable

The motor controller shall have horsepower ratings at the application voltage not_____________the horsepower rating of the motor.

a) lower than

In dwelling units, the voltage between conductors that supply the terminals of____shall not exceed 120V, nominal.

a) luminaires b) cord-and-plug connected loads of 1,440 VA or less

In dwelling units, lighting outlets can be controlled by occupancy sensors where equipped with a_______that will allow the sensor to function as a wall switch.

a) manual override

Bends in LFNC shall be made so that the conduit will not be damaged and the internal diameter of the conduit will not be effectively reduced. Bends can be made__________.

a) manually without auxiliary equipment

A__________is a structure transportable in one or more sections that is built on a permanent chassis and designed to be used as a dwelling, with or without a permanent foundation.

a) manufactured home

Attachment plugs and cord connectors shall be listed and marked with the_________.

a) manufacturer's name or identification b) voltage rating c) amperage rating d) all of thes

Handhole enclosure covers shall have an identifying_______that prominently identifies the function of the enclosure, such as "electric."

a) mark OR b) logo

Wooden plugs driven into holes in_________ or similar materials shall not be used for securing electrical equipment.

a) masonry b) concrete c) plaster d) all of these

Bare aluminum or copper-clad aluminum grounding electrode conductors shall not be used where in direct contact with______or where subject to corrosive conditions.

a) masonry or the earth

Luminaires installed in Class II, Division 1 locations shall be identified for the location and shall be clearly marked to indicate the_______.

a) maximum wattage and type of lamps for which they're designed

Luminaires installed in Class I, Division 1 locations shall be identified as a complete assembly for the Class I, Division 1 location and shall be clearly marked to indicate the_____________.

a) maximum wattage of lamps

Auxiliary gutters shall be constructed and installed so that adequate_______continuity of the complete system is secured.

a) mechanical AND b) electrical

In judging equipment for approval, considerations such as the following shall be evaluated:

a) mechanical strength b) wire- bending space c) arcing effects d) all of these

In Class 1, Division 2 locations, Schedule 80 PVC conduit or reinforced thermosetting resin conduit (RTRC) with the suffix -XW shall be permitted where________.

a) metal conduit does not provide sufficient corrosion resis-tance b) only qualified persons service the installation c) installed in industrial locations d) all of these

Which of the following wiring methods are permitted in an assembly occupancy of fire-rated construction?

a) metal raceways b) Type MC cable c) Type AC cable d) all of these

Racks (rigid frames designed to support battery cells or trays) must be made of which of the following?

a) metal, treated to be resistant to deteriorating action by the electrolyte and provided with nonconducting or continuous insulating material members directly supporting the cells b) Fiberglass c) Other suitable nonconductive materials d) any of these

Insulated conductors used in wet locations shall be______.

a) moisture-impervious metal-sheathed b) MTVV, RHW, RHW-2, TW, THW, THW-2, THHW, THWN, THWN-2. XHHW, XHHW-2, or ZW c) listed for wet locations d) any of these

Type UF cable shall not be used in__________.

a) motion picture studios b) storage battery rooms c) hoistways d) all of these

Article 514 applies to________and fleet vehicle motor fuel dispensing facilities.

a) motor fuel dispensing facilities OR b) marine/motor fuel dispensing facilities

Where multiple driving machines are connected to a single elevator, escalator, moving walk, or pumping unit, there shall be one disconnecting means to disconnect the__________.

a) motors AND b) control valve operating magnets

At construction sites, boxes are not required for temporary wiring splices of_________.

a) multiconductor cords OR b) multiconductor cable

Where service equipment consists of more than one enclosure, grounding electrode conductor connections shall be permitted to be______.

a) multiple individual grounding electrode conductors b) one grounding electrode conductor at a common location C) a common grounding electrode conductor and taps d) any of these

Separately derived system generators must have the___________conductor sized not smaller than required to carry the maximum unbalanced current as determined by 220.61.

a) neutral

The Code provides rules for the minimum number of receptacle outlets required in a dwelling unit, The minimum required receptacle outlets shall be in addition to receptacle outlets that are_____.

a) part of a luminaire or appliance b) controlled by a wall switch for use as required illumination c) located more than 51/2 ft above the floor d) all of these

At existing buildings or structures, an intersystem bonding termination is not required if other acceptable means of bonding exits. An external accessible means for bonding communications systems together can be by the use of a(n)______.

a) nonflexible metallic raceway b) exposed grounding electrode conductor c) connection to a grounded raceway or equipment approved by the authority having jurisdiction d) any of these

In Class III locations, motors, generators, and other rotating machinery shall be totally enclosed________.

a) nonventilated b) pipe ventilated c) fan cooled d) any of these

HPD cord shall be permitted for_______.

a) not hard usage

Where cables and nonmetallic raceways are installed parallel to framing members, the nearest outside surface of the cable or raceway shall be______the nearest edge of the framing member where nails or screws are likely to penetrate.

a) not less than 1 1/4 in. from

Where cables or nonmetallic raceways are installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is______the nearest edge of trench that is at least deep. the wood member.

a) not less than 1 1/4 in. from

Where the circuit breaker handles are operated vertically, the up position of the handle shall be the______position.

a) on

Disconnecting means for air-conditioning or refrigerating equipment can be installed____________the air-conditioning or refrigerating equipment, but not on panels that are designed to allow access to the equipment, and not over the equipment nameplate.

a) on OR b) within

Open motors having commutators or collector rings shall be located or protected so that sparks cannot reach adjacent combustible material. This shall not prohibit the installation of these motors_________.

a) on wooden floors

A building or structure shall be supplied by a maximum of ____feeder(s) or branch circuits(s), unless specifically permitted otherwise.

a) one

At least_________125V, single-phase, 15A or 20A, duplex receptacle(s) shall be provided in each elevator machine room and elevator machinery space.

a) one

At least__________125V, single-phase, 15A or 20A, duplex receptacle(s) shall be provided in the elevator hoistway pit.

a) one

Where insulated conductors are deflected within a metal wireway, the wireway shall be sized to meet the bending requirements corresponding to_______wire per terminal in Table 312.6(A).

a) one

Type NM and Type NMC cables shall be permitted in______________.

a) one and two-family dwellings and their attached/detach garages and storage buildings b) multifamily dwellings permitted to be of Types III, IV, and construction c) other structures permitted to be of Types ill, IV, and V co struction, except as prohibited in 334.12 d) any of these

The general requirement for each service drop, set of overhead sieve conductors, set of underground service conductors, of service lateral is that it shall supply___set(s) of service-entrance conductors.

a) only one

Circuit breakers shall____all ungrounded conductors of the circuit both manually and automatically unless specifically permitted otherwise.

a) open

Overcurrent protection for conductors and equipment is designed to______the circuit if the current reaches a value that will cause an excessive or dangerous temperature in conductors or conductor insulation.

a) open

The service disconnecting means shall plainly indicate whether it is in the _______position.

a) open or closed

The 3 VA per-square-foot general lighting load for dwilling unit does not include________.

a) open porches b) garages c) unused or unfinished spaces unit adaptable for future use. d) all of these

Overload relays and other devices for motor overload protection that are not capable of__________shall be protected by fuses, circuit breakers, or motor short-circuit protector.

a) opening short circuits OR c) opening ground faults

A switch or circuit breaker can be used as both the controller and disconnecting means if it__________.

a) opens all ungrounded conductors b) is protected by an overcurrent device in each ungrounded conductor c) is manually operable, or both power and manually operable d) all of these

In patient care areas, the grounding terminals of all receptacles, metal boxes and enclosures containing receptacles, and all noncurrent-carrying conductive surfaces of fixed electric equipment _________shall be directly connected to an insulated copper equipment grounding conductor.

a) operating at over 100V b) likely to become energized c) subject to personal contact d) all of these

Cable wiring methods shall not be used as a means of support for________.

a) other cables b) raceways c) nonelectrical equipment d) all of these

A(n) _________ is a point on the wiring system at which current is taken to supply utilization equipment.

a) outlet

A panelboard shall be provided with physical means to prevent the installation of more__________devices than that number for which the panelboard was designed, rated, and listed.

a) overcurrent

The_____of a circuit shall be selected and coordinated to permit the circuit protective devices to clear a fault without extensive damage to the electrical equipment of the circuit.

a) overcurrent devices b) total circuit impedance c) equipment short-circuit current ratings d) all of these

The number and size of conductors permitted in a raceway is limited to_________.

a) permit heat to dissipate ( b) prevent damage to insulation during installation c) prevent damage to insulation during removal of conductors d) all of these

Conductors in ferrous metal raceways and enclosures shall be arranged so as to avoid heating the surrounding ferrous metal by alternating-current induction. To accomplish this, the________conductor(s) shall be grouped together.

a) phase b) grounded c) equipment grounding d) all of these

A_____is the total components and subsystem that, in combination, convert solar energy into electric energy suitable for connection to a utilization load.

a) photovoltaic system

Local metal underground systems or structures such as______are permitted to serve as grounding electrodes.

a) piping systems b) underground tanks c) underground metal well casings that are not bonded to a metal water pipe d) all of these

The lighting switch for hoistway pits shall be readily accessible from the___________.

a) pit access door

A communications raceway is an enclosed channel of nonme-tallic materials designed for holding communications wires and cables in _____ applications.

a) plenum b) riser c) general-purpose d) all of these

Cablebus is ordinarily assembled at the________.

a) point of installation

Combustible dust is defined as dust particles that are 500 microns or smaller in diameter and__________when dispersed and ignited in air.

a) present a fire hazard b) present an explosion hazard

The service conductors shall be connected to the service disconnecting means by_______or other approved means.

a) pressure connectors OR b) clamps

Threaded conduits or fittings installed in hazardous (classified) locations shall be made wrenchtight to____________.

a) prevent sparking when a fault current flows through the con- duit system b) ensure the explosionproof integrity of the conduit system where applicable

EMT, elbows, couplings, and fittings can be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences if______.

a) protected by corrosion protection AND b) approved as suitable for the condition

When determining a Class I, Division 2 location, the______________ is a factor that should be considered in determining the classification and extent of the location

a) quantity of flammable material that might escape in case of an accident b) adequacy of ventilating equipment c) record of the industry or business with respect to explosions or fires d) all of these

Where portions of a cable raceway or sleeve are subjected to different temperatures and condensation is known to be a problem, the______shall be filled with an approved material to prevent the circulation of warm air to a colder section of the raceway or sleeve.

a) raceway OR b) sleeve

All conductors of the same circuit, including the grounded and equipment grounding conductors, shall be contained within the same_______, unless otherwise permitted elsewhere in the Code.

a) raceway b) cable c) trench d) all of these

Conductors of intrinsically safe circuits shall not be placed in any________with conductors of any nonintrinsically safe system.

a) raceway b) cable tray c) cable d) any of these

Electric-discharge and LED luminaires supported independently of the outlet box shall be connected to the branch circuit through_________.

a) raceways b) Type MC, AC, MI, or NM cable c) flexible cords d) any of these

In industrial facilities where conditions of maintenance and supervision ensure that only qualified persons will service the installation, cable tray systems can be used to support________.

a) raceways b) cables c) boxes and conduit bodies d) all of these

GFCI protection in a mobile home shall be provided for____________.

a) receptacle outlets installed outdoors and in compartments accessible from outside b) receptacles within 6 ft of a wet bar sink c) all receptacles in bathrooms including receptacles in lumi-naires d) all of these

Luminaires installed in__________shall comply with 410.115 through 410.122.

a) recessed cavities in walls or ceilings AND b) suspended ceiling

Fixed electric space-heating equipment shall be installed to provide the _______ spacing between the equipment and adjacent combustible material, unless it is listed for direct contact with combustible material.

a) required

Service- entrance cables which are not installed underground, where subject to physical damage, shall be protected by___.

a) rigid metal conduit b) IMC c) schedule80 PVC conduit d) any of these

Wiring methods permitted for service-entrance conductors include_____.

a) rigid metal conduit b) electrical metallic tubing c) PVC conduit d) all of these

Surface-mounted outlet boxes shall be______.

a) rigidly and securely fastened in place

When devices or plug-in connections for tapping off feeders or branch circuits from a busway include an externally operable fusible switch that is out of reach, _______shall be provided for operation of the disconnecting means from the floor.

a) ropes b) chains c) hook sticks d) any of these

Flexible cords and cables shall not be used where_______.

a) run through holes in walls, ceilings, or floors b) run through doorways windows, or similar openings c) attached to building surfaces, unless permitted by 368.56(B) d) all of these

Flexible metal conduit shall not be required to be_______where fished between access points through concealed spaces in finished buildings or structures and supporting is impracticable.

a) secured AND b) supported

Cable trays can be used as a support system for_________.

a) service conductors, feeders, and branch circuits b) communications circuits c) control and signaling circuits d) all of these

In a multiple-occupancy building, each occupant shall have access to the occupant's___.

a) service disconnecting means

Exposed structural metal interconnected to form a metal building frame that is not intentionally grounded and is likely to become energized, shall be bonded to the_________.

a) service equipment enclosure or building disconnecting means b) grounded conductor at the service c) grounding electrode conductor where of sufficient size d) any of these

Conductors other than service conductors shall not be installed in the same_______.

a) service raceway or b) service cable

The normally noncurrent-carrying metal parts of service equipment, such as _____,shall be bonded together.

a) service raceways or service cable armor b) service equipment enclosures containing service conductors, including meter fittings, boxes, or the like, interposed in the service raceway or armor c) service cable trays d) all of these

Pendant luminaires in a Class I, Division 1 location shall be suspended by and supplied through threaded rigid metal conduit stems or threaded steel intermediate conduit stems, and threaded joints shall be provided with________or other effective means to prevent loosening.

a) set-screws

Pendant luminaires installed in Class II, Division 1 locations shall be suspended by threaded RMC or steel IMC conduit stems, by chains with approved fittings, or by other approved means. Stems shall be provided with__________or other effective means to prevent loosening.

a) set-screws

A luminaire marked "Suitable for Wet Locations"______be permitted to be used in a damp location.

a) shall

Lightning protection system ground terminals______be bonded to the building or structure grounding electrode system.

a) shall

For existing installed luminaires in indoor locations, other than dwellings and associated accessory structures, a disconnecting means__________in fluorescent luminaires that utilize double-ended lamps (typical fluorescent lamps) at the time a ballast is replaced.

a) shall be installed

Each cable entering a cutout box________.

a) shall be secured to the cutout box

A motor can be provided with combined overcurrent protection using a single protective device to provide branch-circuit_________protection where the rating of the device provides the overload protection specified in 430,32.

a) short-circuit b) ground-fault c) motor overload d) all of these

The following systems shall be installed in accordance with the NEC requirements:

a) signaling conductors, equipment, and raceways b) communications conductors, equipment, and raceways c) electrical conductors, equipment, and raceways d) all of these

Where a luminaire stud or hickey is present in the box, a_______volume allowance in accordance with Table 314.16(b) shall be made for each type of fitting, based on the largest con-ductor present in the box.

a) single

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

a) single

Private, noncommercial docking facilities constructed or occupied for the use of the owner or residents of the associated ________are not covered by Article 555.

a) single-family dwelling

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

a) six

Luminaires for fixed lighting in Class Ill locations shall have enclosures for lamps and lampholders that are designed to prevent the escape of____________.

a) sparks b) burning material c) hot metal d) all of these

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

a) splices b) taps c) devices d) any of these

Where combination surface metal raceways are used for both signaling conductors and lighting and power circuits, the different systems shall be run in separate compartments identified by____________of the interior finish.

a) stamping b) imprinting c) color coding d) any of these

Type AC cable shall be supported and secured by____________.

a) staples b) cable ties c) straps d) any of these

Type NM cable can be supported and secured by_______.

a) staples b) cable ties c) straps d) any of these

Wiring methods installed behind panels that allow access shall be__________________ according to their applicable articles.

a) supported

Type FCC cable systems are permitted on wall surfaces in_______.

a) surface metal raceways

An unspliced _____ that is sized based on the derived phase conductors shall be used to connect the grounded conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system

a) system bonding jumper

Luminaires shall be wired with conductors having insulation suitable for the environmental conditions and___________to which the conductors will be subjected.

a) temperature b) voltage c) current d) all of these

A "performance area" includes the stage and audience seating area associated with a_________stage structure whether indoors or outdoors.

a) temporary

Intrinsically safe circuits must be identified at_______locations to prevent unintentional interference with the circuits during testing and servicing.

a) terminal AND b) junction

The motor disconnecting means shall not be required to be in sight from the motor and the driven machinery location, provided__________.

a) the controller disconnecting means is lockable, in accor-dance with 110.25 b) locating the motor disconnecting means within sight of the motor is impractical c) locating the motor disconnecting means within sight of the motor introduces additional or increased hazards to people or property d) all of these

The ampacity adjustment factors of 310.15(B)(3)(a) shall not apply to conductors installed in strut-type channel raceways where________.

a) the cross-sectional area of the raceway exceeds 4 sq in. b) the number of current-carrying conductors does not exceed 30 c) the sum of the cross-sectional areas of all contained conductors does not exceed 20 percent of the interior cross-sectional area of the strut-type channel raceway d) all of these

Snap switches in listed assemblies aren't required to be connected to an equipment grounding conductor if_______.

a) the device is provided with a nonmetallic faceplate that cannot be installed on any other type of device and the device does not have mounting means to accept other configurations of faceplates b) the device is equipped with a nonmetallic yoke c) all parts of the device that are accessible after installation of the faceplate are manufactured of nonmetallic material d) all of these

Service-entrance conductors can be spliced or tapped by clamped or bolted connections at any time as long as________.

a) the free ends of conductors are covered with an insulation that is equivalent to that of the conductors or with an insulating device identified for the purpose b) wire connectors or other splicing means installed on conductors that are buried in the earth are listed for direct burial c) no splice is made in a raceway d) all of these

An attachment plug and receptacle can serve as the discon-necting means for a single-phase room air conditioner rated 250 volts or less if__________.

a) the manual controls on the room air conditioner are readily accessible and located within 6 ft of the floor OR b) an approved manually operable disconnecting means is installed in a readily accessible location within sight from the room air conditioner

Signs and outline lighting systems shall be marked with________.

a) the manufacturer's name, trademark, or other means of identification b) input voltage c) current rating d) all of these

Ungrounded alternating current systems from 50V to less than 1,000V must be legibly marked "Caution: Ungrounded System______Operating_______Volts Between Conductors" at_________of the system, with sufficient durability to withstand the environment involved.

a) the source OR b) the first disconnecting means

The metal mounting yoke of a replacement switch isn't required to be connected to an equipment grounding conductor if the wiring at the existing switch doesn't contain an equipment grounding conductor, and___________.

a) the switch faceplate is nonmetallic with nonmetallic screws OR b) the replacement switch is GFCI protected

Cabinets, cutout boxes, and meter socket enclosures can be used for conductors feeding through, spliced, or tapping off to other enclosures, switches, or overcurrent devices where________.

a) the total area of the conductors at any cross section doesn't exceed 40 percent of the cross-sectional area of the space b) the total area of conductors, splices, and taps installed at any cross section doesn't exceed 75 percent of the cross-sectional area of that space c) a warning label on the enclosure identifies the closest disconnecting means for any feed-through conductors d) all of these

Underground wiring to motor fuel dispensers shall be installed in__________.

a) threaded rigid metal conduit b) threaded steel IMC c) PVC conduit when buried under not less than 2 ft of cover d) any of these

For circuits over 250 volts-to-ground, electrical continuity can be maintained between a box or enclosure where no oversized, concentric or eccentric knockouts are encountered, and a metal conduit by______.

a) threadless fittings for cables with metal sheaths b) double locknuts on threaded conduit (one inside and one outside the box or enclosure) c) fittings that have shoulders that seat firmly against the box with a locknut on the inside or listed fittings d) all of these

Luminaires identified for________. with an integral outlet box in accordance with 410.21 shall be permitted to be used as a conductor raceway.

a) through-wiring

Where solid knobs are used for concealed knob-and-tube wiring, conductors shall be securely tied to them by________ equivalent to that of the conductor.

a) tie wires having insulation

Which of the following appliances installed in residential occupancies need not be connected to an equipment grounding conductor?

a) toaster

In Class II, Division 2 locations, motors, generators, and other rotating electrical equipment shall be_________.

a) totally enclosed nonventilated or pipe-ventilated b) totally enclosed water-air-cooled or fan-cooled c) dust-ignitionproof d) any of these

15A and 20A, 125V receptacles installed in dwelling unit boathouses shall have GFCI protection.

a) true

3 Motor controllers and terminals of control circuit devices shall be connected with copper conductors unless identified for use with a different conductor.

a) true

A 30A, 208V receptacle installed in a wet location, where the product intended to be plugged into it is not attended while in use, shall have an enclosure that is weatherproof with the attachment plug cap inserted or removed.

a) true

A battery system includes storage batteries and battery charges, and can include inverters, converters, and associated electrical equipment.

a) true

A box or conduit body shall not be required for conductors in handhole enclosures, except where connected to electrical equipment.

a) true

A box or conduit body shall not be required for splices and taps in direct buried conductors and cables as long as the splice is made with a splicing device that is identified for the purpose.

a) true

A branch-circuit overcurrent device can serve as the disconnecting means for a stationary motor of 1/8 hp or less.

a) true

A cablebus system shall include approved fittings for dead ends.

a) true

A grounded circuit conductor is permitted to ground noncurrent-carrying metal parts of equipment, raceways, and other enclosures on the supply side or within the enclosure of the ac service-disconnecting means.

a) true

A grounding electrode conductor, sized in accordance with 250.66, shall be used to connect the equipment grounding con-ductors, the service-equipment enclosures, and, where the system is grounded, the grounded service conductor to the grounding electrode(s).

a) true

A grounding electrode shall be required if a building or structure is supplied by a feeder.

a) true

A laundry receptacle outlet shall not be required in each dwell-ing unit of a multifamily building, if laundry facilities are pro-vided on the premises for all building occupants.

a) true

A raceway is an enclosure designed for the installation of wires,- cables, or busbars.

a) true

A raintight enclosure is constructed or protected so that exposure to beating rain will not result in the entrance of water under specified test conditions.

a) true

A receptacle connected to a dwelling unit small-appliance circuit can supply gas-fired ranges, ovens, or counter-mounted cooking units.

a) true

A receptacle connected to one of the dwelling unit small-appliance branch circuits can be used to supply an electric clock.

a) true

A receptacle shall not be installed within, or directly over, a bathtub or shower space.

a) true

A separate overcurrent device shall not be required for a capacitor connected on the load side of a motor overload protective device.

a) true

A service disconnecting means shall not be installed in bathrooms.

a) true

A sigle-family dwelling unit and its accessory structure(s) shall be permitted to have one set of service conductors run to each structure from a single service drop, set of overhead service conductors, set of underground service conductors, or service lateral.

a) true

A signaling circuit is any electrical circuit that energizes signaling equipment .

a) true

A single receptacle installed on an individual branch circuit shall have an ampere rating not less than that of the branch circuit.

a) true

A wire-type equipment grounding conductor is permitted to be used as a grounding electrode conductor if it meets all the requirements of Parts II, Ill, and IV of Article 250.

a) true

All 15A and 20A, 125V receptacles installed in crawl spaces at or below grade level of dwelling units shall have GFCI protection

a) true

All 15A and 20A, 125V receptacles installed in locker rooms with associated showering facilities must be GFCI protected.

a) true

All 15A and 20A, 125V receptacles installed indoors, in other than dwelling units, in wet locations must be GFCI protected.

a) true

All 15A or 20A, 120V branch circuits that supply outlets or devices in dwelling unit kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas, or similar rooms or areas shall be AFCI protected by a listed arc-fault circuit interrupter.

a) true

All branch circuits serving patient care areas shall be provided with an effective ground-fault current path by installation in a metal raceway system, or a cable having a metallic armor or sheath assembly. The metal raceway system, or metallic cable armor, or sheath assembly shall itself qualify as an equipment grounding conductor in accordance with 250.118.

a) true

All lights and any receptacles installed in theater dressing rooms adjacent to the mirrors and above the dressing table counter(s), shall be controlled by wall switches in the dressing room(s).

a) true

Alternating-current systems of 50V to 1,000 V that supply premises wiring systems shall be grounded Where the system is three-phase 4-wire, wye connected with the neutral conductor used as a circuit conductor.

a) true

Alternating-current systems of 50V to 1,000V that supply premises wiring systems shall be grounded where supplied by a three-phase, 4-wire, delta-connected system in which the mid-point of one phase winding is used as a circuit conductor.

a) true

An atmosphere containing carbon black, charcoal, coal, or coke dusts that have been sensitized by other materials so they present an explosion hazard is classified as Group F

a) true

An equipotential plane shall be installed in all concrete floor confinement areas of livestock buildings, and all outdoor confinement areas with a concrete slab that contains metallic equipment accessible to livestock and that may become energized.

a) true

An important consideration for limiting imposed voltage on electrical systems is to remember that bonding and grounding electrode conductors shouldn't be any longer than necessary and unnecessary bends and loops should be avoided.

a) true

An individual 20A branch circuit can supply a single dwelling unit bathroom for receptacle outlet(s) and other equipment within the same bathroom.

a) true

Article 445 contains installation and other requirements for generators.

a) true

Article 625 covers conductors and equipment external to an electric vehicle that connect an electric vehicle to a supply of electricity, and the installation of equipment and devices related to electric vehicle charging.

a) true

As a general rule, the grounded circuit conductor for the controlled lighting circuit shall be provided at the location where switches control lighting loads that are supplied by a grounded general-purpose branch circuit.

a) true

At least one wall switch-controlled lighting outlet must be installed in every habitable room and bathroom of a dwelling unit.

a) true

Boxes, box assemblies, or fittings used to support luminaires in Class I, Division 1 locations shall be identified for Class I locations.

a) true

Boxes, conduit bodies, and fittings installed in wet locations shall be required to be listed for use in wet locations.

a) true

Bushings or adapters shall be provided at ENT terminations to protect the conductors from abrasion, unless the box, fitting, or enclosure design provides equivalent protection

a) true

Communications wiring such as telephone, antenna, and CAN wiring within a building shall not be required to comply with the installation requirements of Chapters 1 through 7, except where specifically referenced in Chapter 8.

a) true

Compliance with either the metric (SI) or the inch-pound unit of measurement system shall be permitted.

a) true

Conductors that supply electric vehicle supply equipment shall have a rating of not less than 125 percent of the maximum load of the electric vehicle supply equipment.

a) true

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

a) true

Electrical wiring within the cavity of a fire-rated floor-ceiling or roof-ceiling assembly shall not be supported by the ceiling assembly or ceiling support wires.

a) true

Entrances to rooms and other guarded locations containing exposed live parts shall be marked with conspicuous _____ forbidding unqualified persons to enter.

a) true

Equipment bonding jumpers shall be of copper or other corrosion-resistant material.

a) true

Equipment in an area containing ignitible concentrations of acetylene under normal operating conditions shall be classified as a Class I, Group A location.

a) true

Equipotential planes shall be installed in outdoor concrete slabs where metallic equipment is located that may become energized and is accessible to livestock, other than poultry.

a) true

Exothermic or irreversible compression connections, together with the mechanical means used to attach to fireproofed struc-tural metal, shall not be required to be accessible.

a) true

Explanatory material, such as references to other standards, references to related sections of the NEC, or information related to a Code rule, are included in the form of Informational Notes.

a) true

Exposed runs of Type AC cable can be installed on the underside of joists where supported at each joist and located so it is not subject to physical damage.

a) true

FMC can be installed exposed or concealed where not subject to physical damage.

a) true

Ferrous metal raceways and enclosures for grounding electrode conductors shall be electrically continuous from the point of attachment to cabinets or equipment to the grounding electrode.

a) true

Fittings and connectors shall be used only with the specific wiring methods for which they are designed and listed.

a) true

Fixture wires shall not be used for branch-circuit wiring, except as permitted in other articles of the Code.

a) true

Flat Type NM cables shall not be stapled on edge.

a) true

Grounding electrode conductor taps from a separately derived system to a common grounding electrode conductor are permitted when a building or structure has multiple separately derived systems, provided that the taps terminate at the same point as the system bonding jumper.

a) true

Horizontal runs of IMC supported by openings through framing members at intervals not exceeding 10 ft and securely fastened within 3 ft of terminations shall be permitted.

a) true

If an appliance of more than 1/8 hp is provided with a unit switch that complies with 422.34(A), (B), (C), or (D), the switch or circuit breaker serving as the other disconnecting means shall be permitted to be out of sight from the appliance.

a) true

If the voltage between overhead service conductors does not exceed 300V and the roof area is guarded or isolated, a reduction in clearance to 3 ft is permitted.

a) true

If used for single-pole, 3-way or 4-way switch loops, the reidentified conductor with white or gray insulation or three continuous white or gray stripes can be used for the supply to the switch but not as a return conductor from the swith to the outlet.

a) true

In Class I locations, the locknut-bushing and double-locknut types of contacts shall not be depended on for bonding purposes.

a) true

In Class I, Division 2 locations, fused or unfused disconnect and isolating switches for transformers or capacitor banks that are not intended to interrupt current in normal performance can be installed ingeneral-purpose enclosures.

a) true

In Class I, Division 2 locations, where metallic conduit doesn't provide sufficient corrosion resistance, reinforced thermosetting resin conduit with the suffix —XW and Schedule 80 PVC conduit can be used, but only in industrial establishments where maintenance and supervision ensure that only qualified persons service the installation.

a) true

In Class II locations, a permitted method of bonding is the use of bonding jumpers with proper fittings.

a) true

In a Class I, Division 2 location, switches and circuit breakers shall be installed in explosionproof enclosures meeting the requirements for Class I, Division 1 locations.

a) true

In a dwelling unit, illumination from a lighting outlet shall be provided on the exterior side of each outdoor entrance or exit that has grade-level access.

a) true

In general, areas where acids and alkali chemicals are handled and stored may present corrosive conditions, particularly when wet or damp.

a) true

In indoor locations other than dwellings and associated accessory buildings, fluorescent luminaires that utilize double-ended lamps and contain ballast(s) and can be serviced idn place shall have a disconnecting means either internal or external to each luminaire.

a) true

In other than dwelling units GFCI protection shall be provided for all outdoor 15A and 20A, 125V receptacles.

a) true

Intrinsically safe apparatus, metal enclosures, and metal race-ways shall be connected to the equipment grounding conductor.

a) true

Isolated ground receptacles installed in nonmetallic boxes shall be covered with a nonmetallic faceplate, unless the box contains a feature or accessory that permits the effective grounding of the faceplate.

a) true

Listed tamper-resistant receptacles shall be provided where replacements are made at receptacle outlets that are required to be tamper resistant elsewhere in this Code.

a) true

Luminaires can be used as a raceway for circuit conductors only when listed and marked for use as a raceway.

a) true

MI cable terminated with fittings listed for the location is allowed in Class I, Division 1 locations.

a) true

Metal faceplates for receptacles shall be grounded.

a) true

Metal multioutlet assemblies can pass through a dry partition, provided no receptacle is concealed in the partition and the cover of the exposed portion of the system can be removed.

a) true

Metal or nonmetallic poles used to support signs can contain the sign circuit conductors, provided the installation complies with 410.30(B).

a) true

Metal parts of cord-and-plug-connected equipment shall be connected to an equipment grounding conductor that terminates to a grounding-type attachment plug.

a) true

Meters, instruments, instrument transformers, resistors, rectifiers, and thermionic tubes in Class I, Division 1 locations shall be installed in enclosures identified for use in Class I, Division 1 locations.

a) true

Motor control circuits shall be arranged so they will be disconnected from all sources of supply when the disconnecting means is in the open position.

a) true

No conductor shall be used where its operating temperature exceeds that designated for the type of insulated conductor involved.

a) true

Nongrounding, nonlocking type, 15A and 20A, 125V receptacles used for replacements in a dwelling unit shall not be required to be listed as tamper resistant.

a) true

One set of service-entrance conductors connected to the supply side of the normal service disconnecting means shall be permitted to supply standby power systems, fire pump equipment, and fire and sprinkler alarms covered by 230.82(5).

a) true

Only wiring, raceways, and cables used directly in connection with an elevator shall be permitted inside the hoistway and the machine room.

a) true

Outdoor luminaires and associated equipment can be supported by trees.

a) true

Totally enclosed motors of the types specified in 501.125(A)(2) or (A)(3) shall have a device to de-energize the motor or provide an alarm if there is any increase in temperature of the motor beyond designed limits when operating in Class I, Division 1 locations.

a) true

Transformers and capacitors installed in Class I, Division 1 loca-tions that do not contain flammable liquids shall not be required to be installed in vaults if they are identified for Class I locations.

a) true

Transformers and capacitors installed in Class I, Division 1 locations containing a liquid that will burn shall be installed in vaults.

a) true

Type AC cable installed through, or parallel to, framing members shall be protected against physical damage from penetration by screws or nails.

a) true

Type FCC systems shall be permitted for individual branch cir-cuits.

a) true

Type MC cable installed through, or parallel to, framing members shall be protected against physical damage from penetration by screws or nails by 1 1/4 in. separation or protected by a suitable metal plate.

a) true

Type NM cables can be used for feeder temporary installations without height limitation and without concealment.

a) true

Type UF cable shall not be used where subject to physical damage.

a) true

Type USE cable used for service laterals shall be permitted to emerge from the ground if terminated in an enclosure at an out-side location and protected in accordance with 300.5(D).

a) true

Underground service-entrance conductors shall be protected against physical damage.

a) true

Utilities may include entities that are designated or recognized by governmental law or regulation by public service/utility commissions.

a) true

When IMC is cut in the field, reaming is required to remove the burrs and rough edges.

a) true

When an underground metal water piping system is used as a grounding electrode, bonding shall be provided around insulated joints and around any equipment that is likely to be dis-connected for repairs or replacement.

a) true

When breaks occur in dwelling unit kitchen countertop spaces . for range tops, refrigerators or sinks, each countertop surface shall be considered a separate counter space for determining receptacle placement.

a) true

When grouping conductors of switch loops in the same raceway, it is not required to include a grounded conductor in every switch loop.

a) true

When installing duct heaters, sufficient clearance shall be maintained to permit replacement and adjustment of controls and heating elements.

a) true

When provisions for flexibility are necessary in Class I, Division 2 locations, FMC with listed fittings can be used.

a) true

When supplying a grounded system at a separate building or structure, an equipment grounding conductor shall be run with the supply conductors and connected to the building or structure disconnecting means.

a) true

Where NUCC enters a box, fitting, or other enclosure, a bushing or adapter shall be provided to protect the conductor or cable from abrasion unless the design of the box, fitting, or enclosure provides equivalent protection.

a) true

Where PVC conduit enters a box, fitting, or other enclosure, a bushing or adapter shall be provided to protect the conductor from abrasion unless the design of the box, fitting, or enclosure affords equivalent protection.

a) true

Where a lighting outlet(s) is installed for interior stairways, there shall be a wall switch at each floor level and each landing level that includes an entryway where the stairway between floor levels has six risers or more unless remote, central, or automatic control is used.

a) true

Where a motor installation includes a capacitor connected on the load side of the motor overload device, the rating or setting of the motor overload device shall be based on the improved power factor of the motor circuit.

a) true

Where a portion of the dwelling unit basement is finished into one or more habitable rooms, each separate unfinished portion shall have a receptacle outlet installed.

a) true

Where a remote-control device actuates the service disconnecting means, the service disconnecting means must still be at a readily accessible location either outside the building or structure, or nearest the point of entry of the service conductors.

a) true

Where circuit conductors are spliced or terminated on equipment within a box, any equipment grounding conductors associated with those circuit conductors shall be connected to the box with devices suitable for the use.

a) true

Where conductors are run in parallel in multiple raceways or cables and include an EGC of the wire type, the equipment grounding conductor must be installed in parallel in each race-way or cable, sized in compliance with 250.122.

a) true

Where conductors in parallel are run in separate raceways, the raceways shall have the same electrical characteristics.

a) true

Where feeder conductors are installed to serve a mobile home, an equipment grounding conductor shall be installed with the conductors, unless the premises wiring system is existing.

a) true

Where more than one concrete-encased electrode is present at a building or structure, it shall be permitted to connect to only one of them.

a) true

Where more than one motor disconnecting means is provided in the same motor branch circuit, at least one of the disconnecting means shall be readily accessible.

a) true

Where the junction box contains a power distribution block, and it has conductors that don't terminate on the power distribution block(s), the through conductors must be arranged so the power distribution block terminals are _________following installation.

a) unobstructed

Enclosures for overcurrent devices shall be mounted in a______position unless impracticable.

a) vertical

Cartridge fuses and fuseholders shall be classified according to their_____ranges.

a) voltage AND b) amperage

Unbroken lengths of surface nonmetallic raceways can be run through dry__________.

a) walls b) partitions c) floors d) all of these

Surface-mounted switches or circuit breakers in a damp or wet location shall be enclosed in a enclosure or cabinet that complies with 312.2.

a) weatherproof

The markings required on signs and outline lighting systems in 600.4(a) must be permanent, durable, and_________when in wet locations.

a) weatherproof

The interior of underground raceways shall be considered a_________location.

a) wet

Where________may be present in an agricultural building, enclosures and fittings shall have corrosion-resistance properties suitable for the conditions.

a) wet dust b) corrosive gases or vapors c) other corrosive conditions d) any of these

Conductors, splices or terminations in a handhole enclosure shall be listed as suitable for________.

a) wet locations

Service raceways for overhead service drops or overhead service conductors shall have a service head listed for ___.

a) wet locations

A strut-type channel raceway can be installed__________.

a) where exposed b) as a power pole c) unbroken through walls, partitions, and floors d) all of these

Overcurrent devices shall not be_______.

a) where exposed to physical damage b) near easily ignitible materials, such as in clothes closets c) in bathrooms of dwelling units d) all of these

Type TC cable shall not be installed______.

a) where it will be exposed to physical damage b) outside of a raceway or cable tray system, unless permitted in 336.10(4) and 336.10(7) c) direct buried unless identified for such use d) all of these

Track lighting shall not be installed_________.

a) where likely to be subjected to physical damage AND b) in wet or damp locations

Flat cable assemblies shall not be installed________.

a) where subject to corrosive vapors unless suitable for the application b) in hoistways c) in any hazardous (classified) location d) all of these

Busways shall not be installed____________.

a) where subject to severe physical damage b) outdoors or in wet or damp locations unless identified for such use c) in hoistways d) all of these

Surface metal raceways shall not be used______.

a) where subject to severe physical damage b) where subject to corrosive vapors c) in hoistways d) all of these

A main bonding jumper shall be a_______or similar suitable conductor.

a) wire b) bus c) screw d) any of these

Flexible cords and cables can be used for________.

a) wiring of luminaires b) connection of portable luminaires or appliances c) connection of utilization equipment to facilitate frequent interchange d) all of these

A three-phase, 4 wire,____power system used to supply power to nonlinear loads may necessitate that the power system design allow for the possibility of high harmonic currents on the neutral conductor .

a) wye-connected

Feeder neutral conductors shall be permitted to be sized at percent______of the continuous and noncontinuous load.

b) 100

The ampacity of the conductors from the generator terminals to the first distribution device containing overcurrent protection shall not be less than________percent of the nameplate rating of the generator.

b) 115

A sealing fitting shall not be required if a metal conduit passes completely through a Class I, Division 2 location if the termination points of the unbroken conduit are located in unclassified locations and it has no fittings less than________in. of either side of the boundary of the hazardous (classified) location.

b) 12

The______has the responsibility for deciding on the approval of equipment and materials.

authority having jurisdiction

HDPE conduit shall be permitted only in trade sizes________.

b) 1/2 to 6

Expansion fittings for nonmetallic wireways shall be provided to compensate for thermal expansion and contraction, where the length change is expected to be_______in. or greater in a straight run.

b) 1/4

In noncombustible walls or ceilings, the front edge of a box plaster ring, extension ring, or listed extender employing a flush' type cover, shall be set back not more than_______in. from the finished surface.

b) 1/4

Surface-type cabinets, cutout boxes. and meter socket enclo-sures in damp or wet locations shall be mounted so there is at least_________in. airspace between the enclosure and the wall or supporting surface.

b) 1/4

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

b) 1/8

According to the NEC, the volume of a 3 x 2 x 2 in. device box is___________cu in.

b) 10

Individual open conductors and cables, other than service-entrance cables, shall not be installed within_____ ft of grade level or where exposed to physical damage.

b) 10

Nonmetallic cables can enter the top of surface-mounted cabinets, cutout boxes, and meter socket enclosures through non-flexible raceways not less than 18 in. or more than_____ft in length if all of the required conditions are met.

b) 10

Overhead service conductors shall have a horizontal clearance of not less than________ft from a pool.

b) 10

Smooth-sheath Type MC cable with an external diameter not greater than 3/4 in. shall have a bending radius not more than_______times the cable external diameter.

b) 10

Connection by means of wire-binding screws, studs, or nuts having upturned lugs or the equivalent shall be permitted for______ or smaller conductors.

b) 10 AWG

The minimum point of attachment of overhead service conductors to a building shall not be less than ______above is finished grade.

b) 10 ft

The point of attachment of overhead premises wiring to a building shall in no case be less than________above finished grade.

b) 10 ft

In order for a metal underground water pipe to be used as a grounding electrode, it shall be in direct contact with the earth for__________.

b) 10 ft or more

Feeder and service loads for fixed electric space heating shall be calculated at______percent of the total connected load.

b) 100

At least 125V, 15A or 20A receptacle outlet shall be installed within 18 in. of the top of a show window for each_________ linear ft, or major fraction thereof, of show-window area measured horizontally at its maximum width.

b) 12

Type MC cable containing four or fewer conductors, sized no larger than 10 AWG, shall be secured within_______in. of every box, cabinet, fitting, or other cable termination.

b) 12

What's the minimum cover requirement for Type UF cable supplying power to a 120V, 15A GFCI-protected circuit outdoors under a driveway of a one-family dwelling?

b) 12 in.

Branch-circuit conductors supplying a single air-conditioner motor-compressor shall have an ampacity not less than______ percent of either the motor-compressor rated-load current or the branch-circuit selection current, whichever is greater.

b) 125

Overhead feeder conductors shall have a minimum_____ vertical clearance over residential property and driveways, as well as those commercial areas not subject to truck traffic, where the voltage is limited to 300 volts-to-ground.

b) 12ft

Receptacles and cord connectors shall be rated not less than________at 125V, or at 250V, and shall be of a type not suitable for use as lampholders.

b) 15A

The pilot light provided within a portable stage switchboard enclosure shall have overcurrent protection rated or set at not more than____________.

b) 15A

Pilot lights, instruments, voltage (potential) transformers, currpnt transformers, and other switchboard devices with potential coils shall be supplied by a circuit that is protected by overcurrent devices rated________.

b) 15A or less

Fixture wires used as pendant conductors for incandescent luminaires with intermediate or candelabra-base lampholders shall not be smaller than_____AWG.

b) 18

Two intermediate metal or rigid metal conduits threaded wrenchtight into an enclosure can be used to support an outlet box containing devices or luminaires, if each raceway is supported within__________in. of the box.

b) 18

If a set of 120/240V overhead service conductors terminate at a through-the-roof raceway or approved support, with less than 6 ft of these conductors passing over the roof overhang, the minimum clearance above the roof for these service conductors shall be_____.

b) 18 in.

At marinas and boatyards, the electrical datum plane, in land areas subject to tidal fluctuation, is a horizontal plane________ft above the highest high tide under normal circumstances.

b) 2

For other than dwelling units or guest room of hotels or motels, the feeder and service calculation for track lighting shall be calculated at 150 VA for every ________ ft. of lighting track or fraction thereof unless the track is supplied through a device that limits the current to the track.

b) 2

Electrical service and feeder loads for a recreational vehicle park shall be calculated at a minimum of_________per site equipped with only 20A supply facilities (not including tent sites).

b) 2,400 VA

The sum of the cross-sectional areas of all contained conductors at any cross-section of a metal wireway shall not exceed___________percent.

b) 20

General-purpose branch circuits wired with flat conductor cable shall not be rated more than______.

b) 20 A

The minimunm feeder load for show-window lighting is__________ per linear foot.

b) 200 VA

On electric space-heating cables, blue leads indicate a cable rated for use on a nominal circuit voltage of_______.

b) 208V

Listed FMC can be used as the equipment grounding conductor if the length in any ground return path does not exceed 6 ft and the circuit conductors contained in the conduit are protected by overcurrent devices rated at________or less.

b) 20A

Receptacles rated_____________or less directly connected to aluminum conductors shall be listed and marked CO/ALR

b) 20A

Snap switches rated________or less directly connected to aluminum conductors shall be listed and marked C0/ALR.

b) 20A

There shall be a minimum of one______ branch circuit for the laundry outlet(s) required by 210.52(F)

b) 20A

Two or more______small-appliance branch circuits shall be pro-vided to supply power for receptacle outlets in the dwelling unit kitchen, dining room, breakfast room, pantry, or similar dining areas.

b) 20A

Conductor adjustment factors shall not apply to conductors in raceways having a length not exceeding________in.

b) 24

In dwelling units, at least one receptacle outlet shall be installed at each peninsular countertop having a long dimension of_____in. or greater, and a short dimension of_____in. or greater.

b) 24 , 12

For a sign, outline lighting system, or skeleton tubing system, the equipment grounding conductor size shall be in accordance with________, based on the rating of the overcurrent device protecting the conductors supplying the sign or equipment.

b) 250.122

The recommended maximum total voltage drop on branch-circuit conductors is_____percent

b) 3

When the opening to an outlet, junction, or switch point is less than 8 in. in any dimension, each conductor shall be long enough to extend at least______in. outside the opening of the enclosure.

b) 3

A working space not less than 3 ft high by 3 ft wide by___________deep is required for each ballast, transformer, electronic power supply, and Class 2 power source where not installed in a sign.

b) 3 ft

Cut ends of RMC shall be________or otherwise finished to remove rough edges.

b) reamed

For permanently connected appliances rated over______, the branch-circuit switch or circuit breaker can serve as the disconnecting means where the switch or circuit breaker is within sight from the appliance, or is lockable in accordance with 110.25.

b) 300 VA

Underground service conductors shall be protected from damage in accordance with ___including minimum cover requirements.

b) 300.5

Plug fuses of the Edison-base type shall have a maximum rating of_____.

b) 30A

An in-sink waste disposer can be cord-and-plug-connected, but the cord shall not be less than 18 in. or more than_______in. in length.

b) 36

The term "rainproof" is typically used in conjunction with Enclosure-Type Number ____.

b) 3R c) 3RX

Lighting track shall have two supports for a single section of_________ft or shorter in length and each individual section of not more than 4 ft attached to it shall have one additional support, unless the track is identified for supports at greater intervals.

b) 4

The length of the cord for a dishwasher or trash compactor shall not be longer than________ft, measured from the rear of the appliance.

b) 4

Lighting track shall not be installed less than___________ft above the finished floor except where protected from physical damage or where the track operates at less than 30V rms, open-circuit voltage.

b) 5

Grounding electrodes of the rod type less than_____in. in diameter shall be listed.

b) 5/8 in.

The demand factor for marina load calculations of 45 shore power receptacles is________percent.

b) 50

Exposed live parts of motors and controllers operating at_____________or more between terminals shall be guarded against accidental contact by enclosure or by location.

b) 50V

The feeder conductor ampacity shall not be less than that of the service conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of______or less.

b) 55A

Each portable structure at a carnival, circus, or fair shall be provided with a means to disconnect it from all ungrounded conductors within sight of and within_______ft of the operator's station.

b) 6

In clothes closets, recessed incandescent or LED luminaires with a completely enclosed light source can be installed in the mi wall or the ceiling, provided there is a minimum clearance of________in. between the lunaire and the nearest point of a storage space.

b) 6

Pull boxes or junction boxes with any dimension over_______ft shall have all conductors cabled or racked in an approved manner.

b) 6

Surface-mounted fluorescent luminaires in clothes closets shall be permitted on the wall above the door, or on the ceiling, provided there is a minimum clearance of__________in. between the luminaire and the nearest point of a storage space.

b) 6

Where the supplemental electrode is a rod, that portion of the bonding jumper that is the sole connection to the supplemental grounding electrode shall not be required to be larger than AWG ________copper.

b) 6

At least one receptacle outlet not more than _______ above a balcony, deck, or porch shall be installed at each balcony, deck, or porch that is attached ti and accessible from a dweelling unit.

b) 6 1/2 in.

An insulated grounded conductor of________ or smaller shall be identified by a continuous white or gray outer finish, or by three continuous white or gray stripes along its entire length on Other than green insulation.

b) 6 AWG

Equipment associated with the electrical installation can be located above or below other electrical equipment within their working space when the associated equipment does not extend more that____from the front of the electrical equipment.

b) 6 in.

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

b) 6 lbs.

Foyers with an area greater than_____sq ft must have a receptacle located in each wall space 3 ft or more in width unbroken by doorways, windows next to doors that extend to the floor, and similar openings.

b) 60

Bends made in interlocked or corrugated sheath Type MC cable shall have a radius of at least______times the external diameter of the metallic sheath

b) 7

The maximum unbalanced feeder load for household electric ranges, wall-mounted ovens, and counter-mounted cooking units shall be considered as_____percent of the load on the ungrounded conductors.

b) 70

Conductors, including splices and taps, shall not fill the non-metallic wireway to more than______percent of its area at that point.

b) 75

Overhead service conductors installed over roofs shall have a vertical clearance of_______ft above the roof surface, unless a lesser distance is permitted by an exception.

b) 8

The minimum radius of a field bend on trade size 1 1/4 RMC is________in.

b) 8

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

b) 8

Where installed in raceways, conductors ________AWG and larger shall be stranded.

b) 8

A receptacle outlet for mobile and manufactured home heat tape that is used to protect cold water inlet piping shall be ____________protected and it shall be connected to an interior branch circuit other than a small-appliance branch circuit where all of the out-lets of the circuit are on the load side of the GFCI.

b) GFCI

Type_______cable is a factory assembly of insulated circuit conductors within an armor of interlocking metal tape, or a smooth or corrugated metallic sheath.

b) MC

Circuit breakers used to switch 120V or 277V fluorescent lighting circuits shall be listed and marked_________.

b) SWD or HID

Luminaires and equipment must be mechanically connected to an equipment grounding conductor as specified in 250.118 and must be sized in accordance with__________.

b) Table 250.122

The number of receptacle outlets for guess room in hotels and motels shall not be less than that required for a dwelling unit. These receptacles can be located to be convenient for permanent furniture layout, but a least _______ receptacle outlet(s) shall be readily accesible.

b) Two

Where more than two Type NM cables are installed through the same opening in wood framing that is to be sealed with thermal insulation, caulk, or sealing foam, the allowable ampacity of each conductor shall be_________.

b) adjusted in accordance with Table 310.15(B)(3)(a)

Article 513 applies to buildings or structures in which service, repairs, or alterations are performed on___________.

b) aircraft

Nonmetallic boxes for switches shall be installed with a wiring method that provides or includes_______.

b) an equipment grounding conductor

An arc-fault circuit interrupter is a device intended to deenergize the circuit when it recognizes characteristics unique to______.

b) arcing

Plug fuses of the Edison-base type shall be used______.

b) as a replacement in existing installations

A ________ is an area that includes a basin with a toilet, urinal, tub, shower, bidet, or similar plumbing fixtures.

b) bathroom

Locations where flammable liquids having a flash point______________such as gasoline, will not be handled can be unclassified.

b) below 100°F

Color coding shall be permitted to identify intrinsically safe conductors where they are colored light________and where no other conductors colored light ________are used.

b) blue

In hazardous (classified) locations, intrinsically safe apparatus shall be________in accordance with 250.100.

b) bonded

Service raceways threaded into metal service equipment such as bosses (hubs) are considered to be effectively______to the service metal enclosure.

b) bonded

Metal cable trays containing only non-power conductors such as communication, data, and signal conductors and cables) must be electrically continuous through approved connections or the use of a(n)__________.

b) bonding jumper

Where independent support wires of a ceiling assembly are used to support raceways, cable assemblies, or boxes above a ceiling, they shall be secured at ________ends.

b) both

Fixture wires are used to connect luminaires to the________conductors supplying the luminaires.

b) branch-circuit

The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s) are known as " _________conductors."

b) branch-circuit

Type AC cable is permitted in_______installations.

b) cable trays AND c) exposed

When ungrounded circuit conductors are increased in size from the minimum size that has sufficient ampacity for the intended installation, the equipment grounding conductor must be proportionately increased in size according to the_____of the ungrounded conductors.

b) circular mil area

The disconnecting means for a motor controller shall be designed so that it cannot___________automatically.

b) close

The temperature rating associated with the ampacity of a_____shall be selected and coordinated so as not to exceed the lowest temperature rating of any connected termination, conductor, or device.

b) conductor

In a dwelling unit, at least one lighting outlet _______ shall be located at the point of entry to the attic, underfloor space, utility room, or basement where these spaces are used for storage or contain equipment requiring servicing.

b) containing a switch c) controlled by a wall switch

Intrinsically safe apparatus, associated apparatus, and other equipment must be installed in accordance with the______________ drawing(s).

b) control

When service equipment has ground-fault protection installed, it may be necessary to review the overall wiring system for proper selective over current protection___.

b) coordination

The_______of any system is the ratio of the maximum demand of a system, or part of a system, to the total connected load of a system.

b) demand factor

A surface extension can be made from the cover of a box where the cover is designed so it is unlikely to fall off or be removed if its securing means becomes loose. The wiring method shall be_______for an approved length that permits removal of the cover and provide access to the box interior, and arranged so that any grounding continuity is independent of the connection between the box and cover.

b) flexible

Portable luminaires shall be wired with_______ recognized by 400.4, and have an attachment plug of the polarized or grounding type.

b) flexible cord

The upper end of a ground rod electrode shall be__________ground level unless the aboveground end and the grounding electrode conductor attachment are protected against physical damage.

b) flush with OR c) below

In determining the highest rated motor for purposes of 430.24, the highest rated motor shall be based on the rated full-load current as selected____________.

b) from Tables 430.247, 430.248, 430.249, and 430.250

The motor____________currents listed in Tables 430.247 through 430.250 shall be used to determine the ampacity of motor circuit conductors and short-circuit and ground-fault protection devices.

b) full-load

Where practicable, contact of dissimilar metals shall be avoided in an IMC raceway installation to prevent__________.

b) galvanic action

Listed boxes and handhole enclosures designed for under-ground installation can be directly buried when covered by_______, if their location is effectively identified and accessible.

b) gravel OR c) noncohesive granulated soil

The voltage of a circuits is defined by the Codes as the____rootmean-square (effective) difference of potential between any two conductors of the circuit concerned.

b) greatest

The word "Earth" best describes what NEC term?

b) ground

Connected to ground without the insertion of any resistor or impedance device is referred to as "_________".

b) ground fault

In multiwire branch circuits, the continuity of the________conductor shall not be dependent upon the device connections.

b) grounded

Where an alternating-current system operating at 1,000V or less is grounded at any point, the_____conductor(s) shall be routed with the ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or bus.

b) grounded

For a separate building or structure supplied by a separately derived system when overcurrent protection isn't provided for the supply conductors to the building/structure as permitted by 240.21(C)(4), the installation must be______in accordance with 250.30(A).

b) grounded and bonded

Where a grounding means exists in the receptacle enclosure a(n)________-type receptacle shall be used.

b) grounding

The two to six disconnects for a disconnecting means for a building supplied by a feeder shall be_________.

b) grouped

When the service contains two to six service disconnecting means, they shall be ___.

b) grouped

Nonlocking type 15A and 20A, 125V receptacles in_________must be listed as tamper resistant.

b) guest rooms and guest suites of hotels and motels

A "_________" is an accommodation with two or more contiguous rooms comprising a compartment that provides living, sleeping, sanitary, and storage facilities.

b) guest suite

Switches and circuit breakers used as switches can be mounted_______if they are installed adjacent to motors, appliances, or other equipment that they supply and are accessible by portable means.

b) higher than 6 ft 7 in.

When 15A and 20A receptacles are installed in a wet location, the outlet box __________must be listed for extra-duty use.

b) hood

"Nonautomatic" is defined as requiring ________ to perform a function.

b) human intervention

Receptacles in countertops and similar work surfaces shall not be installed _________, unless listed as receptacle assemblies for countertop applications.

b) in a face-up position

Where single conductor cables comprising each phase, neutral, or grounded conductor of a circuit are connected in parallel in a cable tray, the conductors shall be installed________,to prevent current unbalance in the paralleled conductors due to inductive reactance.

b) in groups consisting of not more than one conductor per phase or neutral

Central heating equipment, other than fixed electric space-heating equipment, shall be supplied by a(n)_________branch circuit.

b) individual

Underfloor raceways shall be laid so that a straight line from the center of one __________to the center of the next __________ coincides with the centerline of the raceway system.

b) junction box, junction box

Extensions from flat cable assemblies shall be made by approved wiring methods, within the______,installed at either end of the flat cable assembly runs.

b) junction boxes

Decorative lighting and similar accessories used for holiday lighting and similar purposes shall be___________.

b) listed

Equipment used in hazardous (classified) locations with metric threaded entries shall be installed using______________.

b) listed conduit fittings OR c) listed cable fittings

Threadless couplings approved for use with IMC in wet locations shall be___________.

b) listed for wet locations

Fixed electrical equipment installed in spaces above a Class I location in a commercial garage shall be___________.

b) located above the level of any defined Class I location OR c) identified for the location

Ferrous metal raceways, boxes, fittings, supports, and support hardware can be installed in concrete or in direct contact with the earth or other areas subject to severe corrosive influences, where________ approved for the conditions.

b) made of material

Service metal raceways and metal-clad cables are considered effectively bonded when using threadless couplings and con-nectors that are___________.

b) made up tight

For a grounded system, an unspliced ____ shall be used to connect the equipment grounding conductor(s) and the service disconnecting means to the grounded conductor of the system within the enclosure for each service disconnect.

b) main bonding jumper

The grounded conductor of an alternating-current system operating at 1,000V or less shall be routed with the ungrounded conductors and connected to each disconnecting means grounded conductor terminal or bus, which is then connected to the service disconnecting means enclosure via a(n)_________that's installed between the service neutral conductor and the service disconnecting means enclosure

b) main bonding jumper

Dimensions of Type S fuses, fuseholders, and adapters shall be standardized to permit interchangeability regardless of the _______.

b) manufacturer

Luminaires shall be marked with the maximum lamp wattage, manufacturer's__________, trademark, or other suitable means of identification.

b) name

Each electric appliance shall be provided with a(n)__________giving the identifying name and the rating in volts and amperes, or in volts and watts.

b) nameplate

Electrical equipment that depends on______for cooling of exposed surfaces shall be installed so that airflow over such surfaces is not prevented by walls or by adjacent installed equipment.

b) natural circulation of air and convection principles

Where single-conductor Type MI cables are used, all phase conductors and, when used, the_________conductor, shall be grouped together to minimize induced voltage on the metal sheath.

b) neutral

A neutral conductor is the conductor connected to the______of a system, which is intended to carry neutral current under normal conditions.

b) neutral point

The maximum number of conductors permitted in any surface raceway shall be_______.

b) no greater than the number for which it was designed

Transformers with ventilating openings shall be installed so that the ventilating openings are___________.

b) not blocked by walls or obstructions

Tap connections to a common grounding electrode conductor for multiple separately derived systems may be made to a copper or aluminum busbar that is______.

b) not smaller than 1/4 in. x 2 in.

Each 15A and 20A, 125V receptacle installed in pits, in hoistways, on elevator car tops, and in escalator and moving walk wellways shall be_____________.

b) of the GFCI type

Appliances that have a unit switch with a marked_______position that disconnects all the ungrounded conductors can serve as the appliance disconnecting means.

b) off

Type FCC cable shall be clearly and durably marked_________.

b) on both sides at intervals not exceeding 24 in. AND c) with conductor material, maximum temperature, and ampacity

For equipment rated 800A or more that contains overcurrent devices, switching devices, or control devices; and where the entrance to the working space has a personnel door less than 25 ft from the working space, the door shall ______.

b) open in the direction of egress and be equipped with listed panic hardware

"Continuous duty" is defined as__________.

b) operation at a substantially constant load for an indefinitely long time

The space above a hung ceiling used for environmental air-handling purposes is an example of_______, and the wiring limitations of_____apply.

b) other space used for environmental air (plenum), 300.22(C)

_______shall not be located over the steps of a stairway.

b) overcurrent devices

Service conductors supplying a building or other structure shall not ___of another building or other structure.

b) pass through the interior

Use of Type FCC systems in damp locations is______.

b) permitted

Conductors and busbars on a switchboard or panelboard shall be located so as to be free from_________and shall be held firmly in place.

b) physical damage

In locations where electrical equipment is likely to be exposed to_______, enclosures or guards shall be so arranged and of such strength as to prevent such demage.

b) physical damage

Transformer vaults shall be located where they can be ventilated to the outside air without using flues or ducts, where______________.

b) practicable

Short sections of raceways used for_______shall not be required to be installed complete between outlet, junction, or splicing points.

b) protection of cables from physical damage

A service disconnecting means shall be installed at a(n)___ location.

b) readily accessible

The disconnecting means for a building supplied by a feeder shall be installed at a(n)_______location.

b) readily accessible

The phase converter disconnecting means shall be___________and located in sight from the phase converter.

b) readily accessible

A listed exposed work cover can be the grounding and bonding means when the device is attached to the cover with at least______permanent fastener(s) and the cover mounting holes are located on a non-raised portion of the cover.

b) two

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

b) two

No more than_____layers of flat conductor cable can cross at any one point.

b) two

Receptacles installed in a dwelling unit kitchen to serve countertop surfaces shall be supplied by not fewer that______ small-appliance branch circuits.

b) two

There shall be a minimum of_____receptacle(s) installed out-doors at a one-family or each unit of a two-family dwelling unit.

b) two

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

b) two

A surge-protective device (SPD) intended for installation on the load side of the service disconnect overcurrent device, including SPDs located at the branch panel, is a _________ SPD.

b) type 2

Locations where flammable paints are dried, and provided with adequate positive ventilation, and the ventilating equipment is interlocked with the electrical equipment, may be designated ______________locations by the authority having jurisdiction.

b) unclassified

Where a service raceway enters a building or structure from a(n)______it shall be sealed in accordance with 300.5(G).

b) underground distribution system

The white conductor within a cable can be used for a(n)_____conductor where permanently reidentified to indicate its use as an ungrounded conductor at each location where the conductor is visible and accessible.

b) ungrounded

The supply-side bonding jumper on the supply side of services shall be sized according to the________.

b) ungrounded supply conductor size

Motors shall be located so that adequate ________is provided and so that maintenance, such as lubrication of bearings and replacing of brushes, can be readily accomplished.

b) ventilation

The ampacities listed in 310.15 do not take _______ into consideration.

b) voltage drop

Where a metal underground water pipe is used as a grounding-electrode, the continuity of the grounding path or the bonding connection to interior piping shall not rely on____and similar equipment.

b) water meters or filtering devices

Receptacles installed outdoors, in a location protected from the weather or other damp locations, shall be in an enclosure that is________when the receptacle is covered.

b) weatherproof

Raceways on exterior surfaces of buildings or other structures shall be arranged to drain, and be suitable for use in_________locations.

b) wet

Receptacles shall have the terminal intended for connection to the grounded conductor identified by a metal or metal coating that is substantially_____--in color.

b) white

Ground-fault protection that functions to open the service disconnect___________ protect(s) from faults on the line side of the protective element.

b) will not

A single receptacle is a single contact device with no other contact device on the same______.

b) yoke

Receptacles mounted in boxes set back from the wall surface shall be installed so that the mounting________ of the receptacle is held rigidly at the finished surface.

b) yoke or strap

For other than dwelling occupancies, banks, or office buildings, each receptacles outlet shall be calculated at not less than_________VA.

b)180

Bare conductors in auxiliary gutters shall be securely and rigidly supported so that the minimum clearance between bare current-carrying metal parts of different potential mounted on the same surface will not be less than 2 in., nor less than______ in. for parts in free air.

c) 1

A cable, raceway, or box installed under metal-corrugated sheet roof decking shall be supported so the top of the cable, raceway, or box is not less than______from the lowest surface of the roof decking to the top of the cable, raceway, or box.

c) 1 1/2 in.

Flexible metal conduit must be securely fastened by a means approved by the authority having jurisdiction within_____of termination.

c) 1 ft

Liquidtight flexible metal conduit must be securely fastened by a means approved by the authority having jurisdiction within ___________of termination.

c) 1 ft

The maximum setting for ground-fault protection in a service disconnecting means is ___.

c) 1,200A

Each length of HDPE conduit shall be clearly and durably marked not less than every_______ft.

c) 10

Each length of RMC shall be clearly and durably identified in every__________ft.

c) 10

Flat cable assemblies shall have conductors of_______AWG special stranded copper conductors.

c) 10

Noninsulated busbars shall have a minimum space of________in. between the bottom of a switchboard enclosure and busbars or other obstructions.

c) 10

What is the minimum size copper equipment bonding jumper for a 40A rated circuit?

c) 10 AWG

If a protective device rating is marked on an appliance, the branch-circuit overcurrent device rating shall not_________exceed percent of the protective device rating marked on the appliance.

c) 100

Handhole enclosure covers shall require the use of tools to open, or they shall weigh over_____.

c) 100 lb

Mobile home service equipment shall be rated not less than__________at 120/240V.

c) 100A

Hallways in dwelling units that are_____long or longer require a receptacle outlet.

c) 10ft.

Direct-buried service conductors that are not encased in concrete and that are buried 18 in. or more below grade shall have their location identified by a warning ribbon placed in the trench at least_______in. above the underground installation.

c) 12

Where communications cables and electric service drop conductors are supported by the same pole, communications cables must have a minimum separation of ___in. at any point in the span, including the point of attachment to the building.

c) 12

Underground service conductors that supply power to limited loads of a single branch circuit shall not be smaller than___.

c) 12 AWG copper

For phase converters serving variable loads, the ampacity of the single-phase supply conductors shall not be less than___________ percent of the single-phase input full-load amperes listed on the phase converter nameplate.

c) 125

Individual circuits for nonmotor-operated appliances that are continuously loaded shall have the branch-circuit rating sized not less than__________percent of the appliance marked ampere rating, unless otherwise listed.

c) 125

Ungrounded service-entrance conductors shall be sized not less that ______percent of the continuous load, plus 100 percent the noncontinuous load.

c) 125

On fixed stage equipment other than switchboards, portable strip lights and connector strips shall be wired with conductors having insulation rated suitable for the temperature but not less than_________.

c) 125°C

If a branch circuit supplies a single nonmotor-operated appliance, the rating of overcurrent protection shall not __________exceed percent of the appliance rated current if the overcurrent protection rating is not marked and the appliance is rated over 13.30A.

c) 150

In major repair garages where lighter than-air gaseous fueled vehicles, such as vehicles fueled by natural gas or hydrogen, are repaired or stored, the area within_________in. of the ceiling is classified as Class I, Division 2

c) 18

Receptacle outlets in or on floors shall not be counted as part of the required number of receptacle outlets for dwelling unit wall spaces, unless they are located within_____in. of the wall.

c) 18

The entire area of an aircraft hangar, including any adjacent and communicating areas not suitably cut off from the hangar, shall be classified as a Class I, Division 2 or Zone 2 location up to a level of______________in. above the floor.

c) 18

The raceway or cable for tap conductors to recessed luminaires shall have a minimum length of _____ in.

c) 18

When installing PVC conduit underground without concrete cover, there shall be a minimum of___________in. of cover.

c) 18

Type MV cable is defined as a single or multiconductor solid dielectric insulated cable rated_____volts or higher.

c) 2,001

Where direct-buried conductors and cables emerge from grade,they shall be protected by enclosures or raceways to a point at least______ft above finished grade.

c) 8

A bare 4 AWG copper conductor installed horizontally near the bottom or vertically, and within that portion of a concrete foundation or footing that is in direct contact with the earth can be used as a grounding electrode when the conductor is at least______ft in length.

c) 20

Kitchen and dining room countertop receptacle outlets in dwelling units shall be installed above the countertop surface, and not more than______in. above the countertop.

c) 20

The minimum clearance for overhead feeder conductors that pass over track rails of railroad is______.

c) 24.50 ft

Conduits, cable trays, and other wiring methods used for intrinsically safe systems shall be identified by permanently affixed labels with the wording "Intrinsic Safety Wiring." The labels shall be visible after installation and the spacing between labels shall not exceed__________ft.

c) 25

Electrical equipment permanently mounted on skids, and the skids themselves, shall be connected to the equipment grounding conductor sized as required by_____.

c) 250.122

A lighting system covered by Article 411 shall have a power supply output rated not more than_______and not more than 30V.

c) 25A

The common grounding electrode conductor installed for multiple separately derived systems shall not be smaller than_________copper when using a wire-type conductor.

c) 3/0 AWG

The largest size grounding electrode conductor required is______copper.

c) 3/0 AWG

The maximum trade size FMT is______.

c) 3/4

The radius of the inner edge of any bend in Type MI cable shall not be less than five times the external diameter of the metallic sheath for cable not more than_______in. in external diameter.

c) 3/4

Mobile home service equipment shall be located adjacent to the mobile home, located in sight from but not more than________ft from the exterior wall of the mobile home it serves.

c) 30

When a ground ring is used as a grounding electrode, it shall be buried at a depth below the earth's surface of not less than_______.

c) 30 in

Receptacles shall not be grouped or ganged in enclosures unless the voltage between adjacent devices does not exceed__________.

c) 300V

The maximum voltage permitted between ungrounded conductors of flat conductor cable systems is_______.

c) 300V

Type AC cable installed horizontally through wooden or metal framing members is considered supported where support doesn't exceed______ft intervals.

c) 4 1/2

What is the minimum size copper supply-side bonding jumper for a service raceway containing 4/0 THHN aluminum conductors?

c) 4 AWG copper

The required working space of access to live parts operating at 300 volts-to-ground, where there are exposed live parts on both sides of the workspace is _______.

c) 4 ft

A dwelling unit containing three 120V small-appliance branch circuits has a calculated load of___________VA for the small appliance circuits.

c) 4,500

Electric space-heating equipment employing resistance-type heating elements rated more than________shall have the heating elements subdivided.

c) 48A

Interior metal water piping located not more than_______from the point of entrance to the building shall be permitted to be used as a conductor to interconnect electrodes that are part of the grounding electrode system.

c) 5 ft

The load for electric clothes dryers in a dwelling unit shall be _________ watts or the nameplate rating, whichever is larger, per dryer.

c) 5,000

Live parts of electrical equipment operating at_____or more shall be guarded against accidental contact by approved enclosures or by suitable permanent, substantial partitions or screens arranged so that only qualified persons have access to the space within reach of the live parts.

c) 50V

Conductors located above an electric space-heated ceiling are considered to be operating in an ambient temperature of _________.

c) 50°C

Type MC cable installed horizontally through wooden or metal framing members are considered secured and supported where such support doesn't exceed__________ft intervals.

c) 6

Grounding electrode conductors smaller than_____shall be in rigid metal conduit, IMC, PVC conduit, electrical metallic tubing, or cable armor

c) 6 AWG

Receptacle outlets installed for a specific appliance in a dwelling unit, such as laundry equipment, shall be located within______of the intended location of the appliance.

c) 6 ft

The minimum height of dedicated equipment space for motor control centers installed indoors is_____above the enclosure, or to the structural ceilling, whichever is lower.

c) 6 ft

Electric vehicle supply equipment rated more than________must have a disconnecting means installed in a readily accessible location that is capable of being locked in the open position.

c) 60A

Open wiring on insulators within______ft from the floor shall be considered exposed to physical damage.

c) 7

Unless an individual switch is provided for each luminaire located over combustible material, lampholders shall be located at least_________ft above the floor, or shall be located or guarded so that the lamps cannot be readily removed or damaged.

c) 8

A(n)___________shall be of such design that any alteration of its trip point (calibration) or the time required for its operation requires dismantling of the device or breaking of a seal for other than intended adjustments.

c) circuit breaker

The metallic sheath of metal-clad cable shall be continuous and______.

c) close fitting

Lampholders shall be constructed, installed, or equipped with shades or guards so that____________isn't subjected to temperatures in excess of 90°C (194°F).

c) combustible material

A separate portion of a raceway system that provides access through a removable cover(s) to the interior of the system, defines the term_____.

c) conduit body

The NEC does not apply to electric utility-owned wiring and equipment______.

c) consisting of service drops or service laterals

Fixed electric heating equipment for pipelines and vessels shall be considered a(n)_________load.

c) continuous

Fixed electric space-heating equipment and motors shall be considered a______load for branch circuit sizing.

c) continuous

A capacitor operating at over 1,000V shall be provided with means to reduce the residual voltage to 50V or less within________ minute(s) after it is disconnected from the source of supply.

c) five

The radius of the curve of the inner edge of any bend shall not be less than________for Type AC cable.

c) five times the diameter of the cable

A switch constructed so that it can be installed in device boxes or on box covers, or otherwise used in conjunction with wiring systems recognized by the NEC is called a "________ switch."

c) general-use snap

Overhead service-entrance conductors of Type SE cable can be formed into a ___and taped with self-sealing weather-resistant thermoplastic.

c) gooseneck

A system or circuit conductor that is intentionally grounded is called a(n) "_______."

c) grounded conductor

A conducting object through which a direct connection to earth is established is a "_____."

c) grounding electrode

Buildings or structures supplied by multiple services or feeders must use the same_____to ground enclosures and equipment in or on that building.

c) grounding electrode system

Luminaires installed in Class I, Division 2 locations shall be protected from physical damage by a suitable__________.

c) guard or by location

Luminaires installed in Class II, Division 1 locations shall be protected from physical damage by a suitable_____________.

c) guard or by location

There are four principal determinants of conductor operating temperature, one of which is__________generated internally in the conductor as the result of load current flow, including fundamental and harmonic currents.

c) heat

Plug fuses of 15A or less shall be identified by a(n)______configuration of the window, cap, or other prominent part to distinguish them from fuses of higher ampere ratings.

c) hexagonal

Conductors rated at a temperature ________than the listed temperature rating of PVC conduit shall be permitted to be installed in PVC conduit, provided the conductors are not operated at a temperature above the raceway's listed temperature rating.

c) higher

Cable trays and their associated fittings shall be______for the intended use.

c) identified

Flat cable assemblies shall not be installed outdoors or in wet or damp locations unless______for the use.

c) identified

Where exposed to the direct rays of the sun, insulated conductors and jacketed cables installed in cable trays shall be_________as being sunlight resistant.

c) identified

Receptacles, receptacle housings, and self-contained devices used with flat conductor cable systems shall be______.

c) identified for this use

No ________ splices or taps shall be made within or on a luminaire.

d) unnecessary

Each direct-buried single conductor cable must be located __________in the trench to the other single conductor cables in the same parallel set of conductors, including equipment grounding conductors.

c) in close proximity

Where LFMC is used in a Class Ill location as permitted in 503.10, it shall___________.

c) include an equipment bonding jumper of the wire type

Type 3 surge protective devices can be installed on the load side of a branch-circuit overcurrent device up to the equipment served. If________, the Type 3 SPD connection must be a minimum 30 ft of conductor distance from the service or separately derived system disconnect.

c) included in the manufacturer's instructions

Ballasts for fluorescent lighting installed indoors shall have___________protection.

c) integral thermal

when applying the demand factors of table 220.56, the feeder of service demand load shall not be less than the sum of the______.

c) largest two kitchen equipment loads

An outlet intended for the direct connection of a lampholder or a luminarie is a (n)"______."

c) lighting outlet

Receptacle yokes designed and________as self-grounding can, in conjunction with the supporting screws, establish the equipment bonding between the device yoke and a flush-type box.

c) listed

Where Type NM cable passes through factory or field openings in metal members, it shall be protected by_______bushings or______grommets that cover metal edges.

c) listed

Circuit breakers shall be capable of being closed and opened by manual operation. Operation by other means, such as electrical or pneumatic, shall be permitted if means for_______operation is also provided.

c) manual

Surface nonmetallic raceways and associated fittings shall be supported in accordance with the_______installation instructions.

c) manufacturer's

Each service disconnecting means shall be permanently ___to identify it as a service disconnect.

c) marked

Supplementary overcurrent protection_______.

c) may be used to protect internal circuits of equipment

Underground raceways and cable assemblies entering a handhole enclosure shall extend into the enclosure, but they are not required to be__________.

c) mechanically connected to the hanhole eclosure

Metal raceways, cable armor, and other metal enclosures shall be_______joined together into a continuous electric conductor so as to provide effective electrical continuity.

c) metallically

Each sign and outline lighting system shall be controlled by an externally operable switch or circuit breaker that opens all ungrounded conductors simultaneously on___________branch circuits.

c) multiwire

There shall be no reduction in the size of the neutral or grounded conductor on_______loads supplied from a 4-wire, wye-connected, three-phase system.

c) nonlinear

Where the supply conductors are larger than 1,100 kcmil copper or 1,750 kcmil aluminum, the main bonding jumper shall have an area that is__________the area of the largest phase conduc-tor when of the same material.

c) not less than 12 1/2 percent of

Conductors normally used to carry current shall be_____unless otherwise provided in this Code.

c) of copper

A unit switch with a marked______position that is part of a fixed space heater, and disconnects all ungrounded conductors, shall be permitted to serve as the required disconnecting means.

c) off

The residual voltage of a capacitor, rated not over 1,000V, shall be reduced to 50V or less within________after the capacitor is disconnected from the source of supply.

c) one minute

A switchboard or panelboard containing an ungrounded ac electrical system is required to be legibly and permanently field-marked to caution that the system is ungrounded and include the___________.

c) operating voltage between conductors

If a(n)__________shutdown is necessary to reduce hazards to persons, the overload sensing devices can be connected to a supervised alarm instead of causing immediate interruption of the motor circuit.

c) orderly

Any current in excess of the rated current of equipment or the ampacity of a conductor is called "_____."

c) overcurrent

For the purpose of determining the placement of receptacles in a dwelling unit kitchen, a(n) _________ countertop is measured from the connecting edge.

c) peninsular

A box shall not be required where cables or conductors from cable trays are installed in bushed conduit and tubing used as support or for protection against_______.

c) physical damage

In cellular concrete floor raceways, a grounding conductor shall connect the insert receptacles to a___________.

c) positive ground connection provided on the header

Overcurrent devices shall be______.

c) readily accessible

The GFCI protection required by 210.8(A), (B), (C), and (D) must be_____.

c) readily accessible

If neutral conductors of different voltage systems are installed in the same raceway, cable, or enclosure, the means of identification of the different neutrals shall be documented in a manner that's ________or be permanently posted where the conductors of different systems originate.

c) readily available

Overhead wiring outside of tents and concession areas of carnivals and circuses which are accessible to pedestrians shall maintain a vertical clearance of________ft above finished grade, sidewalks, or from platforms, projections, or surfaces from which the wiring might be reached.

d) 10

The radius of the inner edge of any bend in Type Ml cable shall not be less than______times the external diameter of the metallic sheath for any cable having an external diameter greater than 3/4 in,, but not more than 1 in.

d) 10

A___ is a device or group of devices that govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected.

d) 100 controller

The maximum length of a feeder tap conductor in a high-bay manufacturing building over 35 ft high shall be______.

d) 100 ft

The overcurrent protective device for the main marina feeder conductors must have ground-fault protection not exceeding ________. If ground-fault protection is provided for each individual marina branch or feeder circuit, ground-fault protection is not required for the main marina feeder conductors.

d) 100 mA

Type AC cable shall be secured at intervals not exceeding 41/2 ft and within_________in. of every outlet box, cabinet, conduit body, or fitting.

d) 12

External surfaces of pipeline and vessel heating equipment that operate at temperatures exceeding_______shall be physically guarded, isolated, or thermally insulated to protect against contact by personnel in the area.

d) 140°F

The minimum clearance for overhead service conductors not exceeding 600V that pass over commercial areas subject to truck traffic is______ft.

d) 18

The minimum clearance for overhead feeder conductors not exceeding 1,000V that pass over commercial areas subject to truck traffic is_____.

d) 18 ft

Where used outside, aluminum or copper-clad aluminum grounding electrode conductors shall not be terminated within________of the earth.

d) 18 in

The maximum ampere rating of a 4 in. x 1/2 in. busbar 4 ft long and installed in an auxiliary gutter is_____________.

d) 2,000A

Handholds in poles supporting luminaires shall not be required for poles_______ft or less in height above finished grade, if the pole is provided with a hinged base.

d) 20

Panelboards equipped with snap switches rated at 30A or less shall have overcurrent protection not exceeding________.

d) 200A

A receptacle outlet shall be installed at each dwelling unit kitchen wall countertop space that is 12 in. or wider and receptacle outlets shall be installed so that no point along the wall line is more that____in., measured horizontally from a receptacle outlet in that space.

d) 24

The feeder/service calculated load for a multifamily containing nine 12 KW rangers is_______.

d) 24,000 WT

Feeder tap conductors supplying motor circuits, with an ampacity at least one-third that of the feeder, shall not exceed_________ ft in length.

d) 25

What size copper grounding electrode conductor is required for a service that has three sets of 600 kcmil copper conductors per phase?

d) 3/0 AWG

For installations consisting of not more than two 2-wire branch circuits, the service disconnecting means shall have a rating of not less than___.

d) 30A

For angle or U-pulls, the distance between the shielded conductor entry (for systems over 1,000V, nominal) and the opposite wall of the box shall not be less than_______times the outside diameter of the largest cable or conductor.

d) 36

PVC conduit shall be securely fastened within_______in. of each box.

d) 36

The distance between a shielded cable or conductor entry and its exit from the box shall not be less than____times the out-side diameter of that cable or conductor on a system of over 1,000V.

d) 36

Floor-mounted flat conductor cable and fittings shall be covered with carpet squares no larger than______.

d) 39.37 inches square

Grounded conductors ____and larger can be identified by distinctive white or gray markings at their terminations.

d) 4 AWG

In an ac system, the size of the grounding electrode conductor to a concrete-encased electrode shall not be required to be larger than a(n)_____copper conductor.

d) 4 AWG

Overcurrent protection for motor control circuits shall not exceed__________percent if the conductor is based on Table 310.15(B)(17) and does not extend beyond the motor control equipment enclosure.

d) 400

For straight pulls, the length of a pull box shall not be less than______times the outside diameter, over the sheath, of the largest shielded or lead-covered conductor or cable entering the box on systems over 1,000V.

d) 48

The minimum thickness of sealing compound in Class I locations shall not be less than the trade size of the conduit or sealing fitting and, in no case, shall the thickness of the compound be less than__________in.

d) 5/8

A luminaire that weighs more than________lb can be supported by an outlet box that is listed and marked for the weight of the luminaire.

d) 50

Boxes used at luminaire or lampholder outlets in a ceiling shall be designed so that a luminaire or lampholder can be attached and the boxes shall be required to support a luminaire weighing a minimum of___________lb.

d) 50

Within sight means visible and not more that ____ft distant from the equipment.

d) 50

Overcurrent devices shall be readily accessible and installed so the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than_______above the floor or working platform.

d) 6 ft 7 in.

Supports for concealed knob-and-tube wiring shall be installed within_____in. of each side of each tap or splice and at intervals not exceeding______ft.

d) 6, 4 1/2

Where conductors are installed in raceways or cables exposed to direct sunlight on or above rooftops, the ambient temperature shall be increased_________by where the conduits are less than 1/2 in. from the rooftop.

d) 60°F

Electric space-heating cables shall be furnished complete with factory-assembled nonheating leads at least________in length.

d) 7 ft

An equipment bonding jumper can be installed on the out-side of a raceway. providing the length of the equipment bonding jumper is not more than_____and the equipment bonding jumper is routed with the raceway.

d) 72 in.

The conductors, including splices and taps, in a metal surface raceway having a removable cover shall not fill the raceway to more than__________percent of its cross-sectional area at that point.

d) 75

The conductors, including splices and taps, in a nonmetallic surface raceway having a cover capable of being opened in place, shall not fill the raceway to more than________percent of its cross-sectional area at that point.

d) 75

Lighting track shall not be installed within the zone measured 3 ft horizontally and_________ft vertically from the top of the bathtub rim or shower stall threshold.

d) 8

Underground copper service conductors supplying more than a single branch circuit shall not be smaller than ___AWG copper.

d) 8

For stationary motors of 2 hp or less and 300V or less on ac circuits, the controller can be an ac-rated only general-use snap switch where the motor full-load current rating is not more than percent of the rating of the switch.

d) 80

Special permission is the written consent from the ______.

d) Authority having juridiction

In Class II, Division 1 locations, control transformers, solenoids, impedance coils and resistors, and any overcurrent devices or switching mechanisms associated with them, shall have enclosures identified for

d) Class II, Division 1 locations

Replacement luminaires aren't required to be connected to an equipment grounding conductor if no equipment grounding conductor exists at the outlet box and the luminaire is___________.

d) GFCI protected

Edison-base fuseholders shall be used only if they are made to accept____________ fuses by the use of adapters.

d) Type S

Type______is a multiconductor cable identified for use as under-ground service-entrance cable.

d) USE

An accessory, such a locknut, intended to perform a mechanical function best describes _______.

d) a fitting

For cord-and-plug-connected household electric ranges, an attachment plug and receptacle connection at the rear base of the range can serve as the disconnecting means, if it is__________.

d) accessible from the front by the removal of a drawer

Separately installed pressure connectors shall be used with conductors at the____ not exceeding the ampacity at the listed and identified temperature rating of the connector.

d) ampacities

An enclosure for either surface mounting or flush mounting provided with a frame in which a door can be hung is called a(n) "_________."

d) cabinet

Unused openings other that those intended for the operation of equipment, intended for mounting purposes, or permitted as part of the design for listed equipment shall be_____.

d) closed to afford protection substantially equivalent to the wall of the equipment

Threadless couplings and connectors used with RMC buried in masonry or concrete shall be the________type.

d) concrete tight

The________of electric vehicle supply equipment located indoors shall be located not less than 18 in. above the floor level.

d) coupling

Unless specifically listed and marked for the location, the_________of electric vehicle supply equipment shall be stored or located at a height of not less than 24 in. above the grade level for outdoor locations.

d) coupling means

Fuseholders for cartridge fuses shall be so designed that it is difficult to put a fuse of any given class into a fuseholder that is designed for a ____lower or a______higher than that of the class to which the fuse belongs.

d) current, voltage

A building or portions of a building where engine overhauls, painting, body and fender work, and repairs that require_________of the motor vehicle fuel tank are performed defines the term "Major Repair Garage."

d) draining

Each general care area patient bed location shall be provided with a minimum of______receptacle(s), which can be single, duplex, or any combination of these.

d) eight

Type NM cable shall not be used_____.

d) embedded in poured cement, concrete, or aggregate

Nonmetallic cable trays shall be made of ________material.

d) flame-retardant

FMT can be used___________.

d) for a maximum of 1,000V

A device comprised of________or more receptacles shall be calculated at not less than 90 VA per receptacle.

d) four

Equipment grounding conductor(s), and not more than______fix-ture wires smaller than 14 AWG shall be omitted from the calculations where they enter the box from a domed luminaire or similar canopy and terminate within that box.

d) four

Horizontal runs of RMC supported by openings through_______at intervals not exceeding 10 ft and securely fastened within 3 ft of termination points shall be permitted.

d) framing members

Where a main bonding jumper is a screw only, the screw shall be identified by a(n)______ that shall be visible with the screw installed.

d) green finish

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 is called the " _____________conductor."

d) grounding electrode

Temporary electrical power and lighting installations shall be permitted for a period not to exceed 90 days for ___________ decorative lighting and similar purposes.

d) holiday

Receptacle outlets over countertops in the kitchen in a mobile home shall_________.

d) include at least one receptacle outlet on each side of the sink

An isolating switch is one that is______.

d) intended for isolating an electrical circuit from the source of power

Conductors within flexible cords and cables shall not be associated together in such a way that the_______temperature of the conductors is exceeded.

d) limiting

Grommets or bushings for the protection of Type NM cable shall be________for the purpose.

d) listed

Type NM cable shall be___________.

d) listed

__________.clips identified for use with the type of ceiling framing member(s) and luminaires shall be permitted to be used to secure luminaires to the ceiling framing members.

d) listed

The Code requires the installation of an equipment grounding conductor of the wire type in_______.

d) listed flexible metal conduit over 6 ft in length

A grounded conductor shall not be connected to normally non-current-carrying metal parts of equipment on the _______side of the system bonding jumper of a separately derived system except as otherwise permitted in Article 250.

d) load

The purpose or use of panelboard circuits and circuit_________including spare positions, shall be legibly identified on a circuit directory located on the face or inside of the door of a panel-board, and at each switch or circuit breaker in a switchboard.

d) modifications

A budding that contains three or more dwelling units is called a "____."

d) multifamily dwelling

The conductors used to connect the surge protective device to the line or bus and to ground shall not be any longer than and shall avoid unnecessary bends

d) necessary

"Varying duty" is defined as_____.

d) operation at loads, and for intervals of time, both of which may be subject to wide varation

The ground-fault protection system for service equipment shall be_____when first installed on site.

d) performance tested

When the disconnecting means for a building supplied by a feeder is a power-operable switch or circuit breaker, it shall be able to be opened by hand in the event of a______.

d) power failure

When the service disconnecting means is a power-operated switch or circuit breaker, it shall be able to be opened by hand in the event of a ___.

d) power supply failure

Where documented safe switching procedures are established and maintained and the installation is monitored by ___individuals, the disconnecting means for a building supplied by a feeder can be located elsewhere on the premises.

d) qualified

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

d) rigidly

20A, 125V receptacles subject to_______can have an enclosure that is weatherproof when the attachment plug is removed.

d) routine high-pressure spray washing

When an outlet from an underfloor raceway is discontinued, the circuit conductors supplying the outlet_________.

d) shall be removed from the raceway

When bare conductors are installed with insulated conductors, their ampacities shall be limited to_______.

d) the lowest temperature rating for any of the insulated conductors

Each service disconnecting means shall be suitable for_______.

d) the prevailing conditions

Each multiwire branch circuit shall be provided with a means that will simultaneously disconnect all_____conductors at the point where the branch circuit originates.

d) ungrounded

______alternating-current systems operating at 480V shall have ground detectors installed on the system.

d) ungrounded

The receptacle outlet for a dwilling unit bathroom mus be located on a ___________ adjacent to the basin or basin counter surface, or on the side of face of the basin cabinet, and never more than 12 in. below the top of the basin.

d) wall or partition

A receptacle installed in an outlet box flush-mounted in a finished surface in a damp or wet location shall be made weatherproof by means of a weatherproof faceplate assembly that provides a________connection between the plate and the finished surface.

d) watertight

Access and____shall be provided and maintained about all and electrical equipment to permit ready and safe operation maintenance of such equipment.

d) working space

The NEC is _

for the practical safeguarding of persons and property

According to the Code "automatic" is performing a function without the necessity of _________.

human intervention

When modifications to the electrical installation affect the maximun available fault current shall be verified or ______ as necessary to ensure the service equipment ratings are sufficient for the maximum available fault current at teh line terminals of the equipment.

recalculated

Capable of being removed or exposed without damaging the building structure or finish, or not permanently closed in by the structure or finish of the building is known as _____.

Accessible (As applied to wiring methods)

Capable of being reached quickly for operation, renewal, or inspections without resorting to portable ladders or the use of tools is knows as ________.

Accessible, readily

"_________" means acceptable to the authority having jurisdiction.

Approved

_____ in other that dweling units must be legibly field marked with the maximun available fault current, including the date the fault-current calculation was performed and be of sufficient durability to withstand the environment involved.

a) Service equipment

Non mandatory Informative Annexes contained in the back of the Code book________.

a) are for information only b) aren't enforceable as requirement of the Code

Communications equipment includes equipment and conductors used for the transmission of______.

a) audio b) video c) data d) any of these

When the term "exposed," as it applies to live parts, is used in the Code, it refers to_______.

a) being capable of being inadvertently touched or approached nearer that a safe distance by a person b) parts that are not suitably guarded, isolated, or insulated

A____ location may be temporarily subject to dampness and wetness.

a) dry

The NEC applies to the installation of...

a) electrical conductors and equipment within or on public and private buildings b) outside conductors and equipment on the premises c) optical fiber cables and raceways d) all of these

Examples of ground-fault current paths include any combination of conductive materials including______.

a) equipment grounding conductors b) metallic raceways c) metal water and gas piping d) all of these

As used in the NEC, equipment includes______.

a) fittings b) appliances c) machinery d) all of these

A"_______" is an accommodation that combines living, sleeping, sanitary, and storage facilities within a compartment.

a) guest room

The NEC requires that electrical equipment be_______.

a) installed in a neat and workmanlike manner

All switchboards, panelboards, and motor control centers shall be______.

a) located in dedicated spaces b) protected from damage

The authority having jurisdiction has the responsibility for _______.

a) making interpretations of rules b) deciding upon the approval of equipment and materials c) waiving specific requirements in the code and permitting alternate methods and material if safety is maintained d) all of these

This code covers the installation of ________ for public and privates premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings.

a) optical fiber cables b) electrical equipment c) raceways d) all of these

Hazards often occur because of ...

a) overloading of wiring systems by methods of usage not in conformity with the NEC b) initial wiring not providing for increases in the use of electricity

A hybrid system is comprised of multiple power sources, such as _____, but not the utility power system.

a) photovoltaic b) wind c) micro-hydro generators d) all of these

A(n)______ system is an electrical source, other that a service, having no direct connection(s) to circuit conductors of any other electrical source other that those established by grounding and bonding connections.

a) separately derived

The overhead system service-entrance conductors are the service conductors between the terminals of______and the point where they are joined by a tap or splice to the service drop or overhead service conductors.

a) service equipment

The underground system service-entrance conductors are the service conductors between the terminals of______ and the point of connection to the service lateral or underground service conductors.

a) service equipment

In the NEC the words "______" indicate a mandatory requirement.

a) shall or b) shall not

The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected with out sustaining damage exceeding defined acceptance criteria is known as the"______."

a) short-circuit current rating

A cable routing assembly is composed of single or connected multiple channels as well as associated fittings, forming a structural system to_____ high densities of wires and cables , typically communications wire and cables, optical fiber and data (class 2 and class 3) cables.

a) support b) route

"Underground" means not connected to ground or to a conductive body that extends the ground connection.

a) true

A structure is that which is built or constructed.

a) true

A thermal protector may consist of one or more sensing elements integral with the motor or motor-compressor and an external control device.

a) true

Accepted industry workmanship practices are described in ANSI/NECA 1-2010, Standard Practice of Good Workmanship in Electrical Construction, and other ANSI-appoved installation standards.

a) true

Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage sufficient for the current that is available at the line terminals of the equipment.

a) true

Field markings of maximum available fault current at a service are not required in industrial installations where conditions of maintenance and supervision ensure that only qualified persons service the equipment.

a) true

Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling.

a) true

The NEC requires tested series-rated installations of circuit breakers or fuses to be legibly marked in the field to indicated the equipment has been applied with series combination rating

a) true

Utilities may be subject to compliance with codes and standards covering their regulated activities as adopted under governmental law or regulation.

a) true

An enclosure constructed so that moisture will not enter the enclosure under specific test conditions is called "______".

a) watertight

A(n)_______enclosure is constructed or protected so that exposure to the weather will not interfere with successful operation.

a) weatherproof

The required working space for access to live parts operating at 300 volts-to-ground, where there are exposed live parts on one side and grounded parts on the other side, is_____.

b) 3 1//2

The dedicated equipment space for electrical equipment that is required for panelboards installed indoors is measured from the floor to a height of______ above the equipment, or to the structural ceiling, whichever is lower.

b) 6 ft

Conductor ampacity shall be determined using the____ column of table 310.15(B)(16) for circuits rated 100A or less or marked for 14 AWG through 1 AWG conductors, unless the equipment terminals are listed for use with conductors that have higher temperature ratings.

b) 60* C

______is a term indicating that there is an intentional delay in the tripping action of the circuit breaker, which decreases as the magnitude of the current increases.

b) Inverse time

Electrical equipment rooms or encloures housing electrical apparatus that are controlled by a lock(s) shall be considered_____to qualified persons.

b) accessible

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

b) circular mils

Wires are considered______ if rendered inaccessible by the structure or finish of the building

b) concealed

A______ location is protected from weather and not subject to saturation with water or other liquids.

b) damp

When normally enclosed live parts are exposed for inspection or servicing, the working space, if in a passageway or general open space, shall be suitably_____.

b) guarded

A clothes is defined as a______room or space intended primarily for storage of garments and apparel.

b) non-habitable

A_____ is a chamber to which one or more ducts are connected and form part of the air distribution system

b) plenum

A hand hole enclosure is an enclosure for use in underground system, provided with an open or closed bottom, and sized to allow personnel to______.

b) reach into but not enter

The connection between the grounded circuit conductor and the supply-side bonding jumper or equipment grounding conductor, or both, at a ______ is called a "system bonding jumper."

b) separately derived system

A Class A GFCI protection device is designed to trip when the current to ground is _____ or higher.

c) 6 mA

Conductors shall have their ampacity determined using the____column of table 310.15(B)(16) for circuits rated over 100A, or marked for conductors larger that 1 AWG, unless the equipment terminals are listed for use with higher temperature rated conductors.

c) 75*C

A device that provides a means to connect intersystem bonding conductors for______ systems to the building grounding electrode system is an intersystem bonding termination .

c) communications

A unit of an electrical system, other than a conductor, that carriers or controls electric energy as its principal function is a(n)"_______"

c) device

A______ is a single unit that provides independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.

c) dwelling unit

A ground- fault current path is an electrically conductive path from the point of a ground fault though normally non current-carrying conductors, equipment, or the earth to the_____.

c) electrical supply source

Lighting track is a manufactured assembly designed to support and _____ luminaries that are capable of being readily repositioned on the track.

c) energize

The installed conductive path(s) that provide(s) a ground-fault current path and connects normally noncurrent-carrying metal parts of equipment together and to the system grounded conductor or to the grounding electrode conductor, or both, is know as a(n)______.

c) equipment grounding conductor

Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it, and preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within, and that operates at such an external temperature that a surrounding flammable atmosphere will not be ignited thereby defines the phrase"______."

c) explosionproof equipment

For wiring methods, "on or attached to the surface, or behind access panels designed to allow access" is known as _____.

c) exposed

A device intended for the protection of personnel that functions to de-energize a circuit or portion there of within an established period of time when a current to ground exceeds the values established for a Class A device, is a(n)"_______."

c) ground-fault circuit interrupter

Connected to ground or to a conductive body that extends the ground connection is called "______."

c) grounded

Conductor terminal and splicing devices must be_____ for the conductor material and they must be properly instilled and used.

c) identified

Connectors and terminals for conductors more finely stranded that Class B and Class C, as show in Table 10 of Chapter 9, must be______ for the specific conductor class or classes.

c) identified

A value assigned to a circuit or system for the purpose of conveniently designating its voltage class, such as 120/240, is called "_______voltage."

c) nominal

A panel, including buses and automatic overcurrent devices, designed to be placed in a cabinet or cutout box and accessible only from the front is known as a "____."

c) panelboard

A contact device installed at an outlet for the connection of an attachment plug is known as a(n) "______."

c) receptacle

Equipment enclosed in a case or cabinet with a means of sealing or locking so that live parts cannot be made accessible with out opening the enclosure is said be "_______."

c) sealable

The conductors and equipment from the electric utility that deliver electric energy to the wiring system of the premises is called a "_____."

c) service

Where required by the Code, markings or labels on all electrical equipment shall contain voltage, current,wattage, or other ratings with sufficient durability to withstand______.

c) the environment involved

Conduit installed underground or encased in concrete slabs that are in direct contact with the earth is considered a____location.

c) wet

A load is considered to be continuous if the maximum current is expected to continue for______ or more.

d) 3 hours

Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts is called"_______."

d) enclosed

A solder less pressure connector is a device that______ between two or more conductors or between one or more conductors and a terminal by means of mechanical pressure and without the use of solder.

d) establishes a connection

Equipment or materials included in a list published by a testing laboratory acceptable to the authority having jurisdiction is said to be "______."

d) listed

A circuit breaker is a device designed to_____the circuit auto-matically on a predetermined overcurrent without damage to itself when properly applied within its rating.

d) open

On a 4 wire, delta-connected system where the midpoint of one phase winding is grounded, the conductor having the higher phase voltage-to-ground shall be durably and permanently marked by an outer finish that is_____in color.

d) orange

A kitchen is defined as an area with a sink and _____ provisions for food preparation and cooking.

d) permanent

Constructed, protected, or treated so as to prevent rain from interfering with the successful operation of the apparatus under specified test conditions defines the term "_____."

d) rainproof