UNEC 100

A device that, when inserted in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle is called a(n) "_____."

-Attachment plug -plug cap -plug 100 Attachment Plug (Plug Cap) (Plug)

Communications equipment includes equipment and conductors used for the transmission of _____.

-audio -video -data 100 Communications Equipment

When the term "exposed," as it applies to live parts, is used in the Code, it refers to _____.

-being capable of being inadvertently touched or approached nearer than a safe distance by a person -parts that are not suitably guarded, isolated, or insulated 100 Exposed (as applied to live parts) and Note

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

100 Coordination, Selective (Selective Coordination)

A load is considered to be continuous if the maximum current is expected to continue for _____ hour(s) or more.

3

Within sight from means visible and not more than _____ ft distant from the equipment.

50

Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts is called "_____."

Enclosed 100 Enclosed

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

False 100 Overload

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.

Garage 100 Garage

Nonconductive optical fiber cable is a factory assembly of one or more optical fibers with an overall covering and containing no electrically conductive materials.

True

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

appliance

Outline lighting is an arrangement of _____ to outline or call attention to the shape of a building.

-incandescent lamps -electric-discharge lighting -electrically powered light sources 100 Outline Lighting

A hybrid system is comprised of multiple power sources, such as _____, but not the utility power system.

-photovoltaic -wind -micro-hydro generators 100 hybrid system

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

-present a fire hazard -present an explosion hazard 100 Combustible Dust

Conductive optical fiber cables contain noncurrent-carrying conductive members such as metallic _____.

-strength members -vapor barriers -armor or sheath

_____ means acceptable to the authority having jurisdiction.

Approved 100 Approved

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

Individual 100 Branch Circuit, Individual

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

Outlet 100 Outlet

An optical fiber cable is a factory assembly or field assembly of one or more optical fibers having a(n) _____ covering.

Overall 100 Optical Fiber Cable

Capable of being reached quickly for operation, renewal, or inspections without resorting to portable ladders or the use of tools (other than keys) is known as "_____."

accessible, readily

An arc-fault circuit interrupter is a device intended to deenergize the circuit when a(n) _____ is detected.

arc fault 100 Arc-Fault Circuit Interrupter (AFCI)

Composite optical fiber cables contain optical fibers and _____.

current-carrying electrical conductors

Underground service conductors are the underground conductors between the service point and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure, _____ the building wall.

inside or outside 100 service conductors, underground

An outlet intended for the direct connection of a lampholder or a luminaire is a(n) "_____."

lighting outlet 100 Lighting Outlet

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

main 100 Bonding Jumper, Main

Continuous duty is defined as _____.

operation at a substantially constant load for an indefinitely long time 100 Duty, Continuous

A kitchen is defined as an area with a sink and _____ provisions for food preparation and cooking.

permanent 100 Kitchen

A communications raceway is an enclosed channel of nonmetallic materials designed for holding communications wires and cables; optical fiber cables; data cables associated with information technology and communications equipment; Class 2, Class 3, and Type PLTC cables; and power-limited fire alarm cables in _____ applications.

plenum riser general-purpose all of these

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 "_____."

rainproof

A handhole enclosure is an enclosure for use in underground systems, provided with an open or closed bottom, and sized to allow personnel to _____.

reach into but not enter 100 Handhole Enclosure

A contact device installed at an outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device, is known as a(n) "_____."

receptacle 100 Receptacle

An effective ground-fault current path is an intentionally constructed, low-impedance electrically conductive path designed and intended to carry current during a ground-fault condition from the point of a ground fault on a wiring system to _____.

the electrical supply source 100 effective ground-fault current path

Conduit installed underground or encased in concrete slabs that are in direct contact with the earth is considered a _____ location.

wet 100 location, wet

A single receptacle is a single contact device with no other contact device on the same _____.

yoke

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

-two or more ungrounded conductors with a voltage between them -a grounded conductor having equal voltage between it and each ungrounded conductor of the circuit -a grounded conductor connected to the neutral or grounded conductor of the system 100 Branch Circuit, Multiwire

_____ are designed for surface mounting and have swinging doors or covers secured directly to and telescoping with the walls of the enclosure.

Cutout boxes 100 Cutout Box

A _____ location may be temporarily subject to dampness and wetness.

Dry 100 Location, Dry

_____ equipment excludes dust and doesn't permit arcs, sparks, or heat inside the enclosure to cause ignition of accumulations or atmospheric suspensions of a specified dust on or in the vicinity outside of the enclosure.

Dust-Ignitionproof 100 Dust Ignitionproof [as applied to Hazardous (Classified) Locations]

Lighting track is a manufactured assembly designed to support and _____ luminaires that are capable of being readily repositioned on the track.

Energize 100 lighting Track (track lighting)

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."

General-use snap 100 Switch, General-Use snap

The voltage of a circuit is defined by the Code as the _____ root-mean-square (effective) difference of potential between any two conductors of the circuit concerned.

Greatest 100 Voltage (of a circuit)

_____ 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.

Inverse time 100 Circuit Breaker, Inverse Time

A(n) _____ system is an electrical source, other than a service, having no direct connection(s) to circuit conductors of any other electrical source other than those established by grounding and bonding connections.

Separately derived 100 separately derived system

A battery system includes storage batteries and battery chargers, and can include inverters, converters, and associated electrical equipment.

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.

True

The common point on a wye-connection in a polyphase system is a "neutral point."

True 100 Neutral point

In many circumstances, the authority having jurisdiction can be a property owner or his/her designated agent.

True 100 Note, Authority Having Jurisdiction

A raintight enclosure is constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions.

True 100 Raintight

A signaling circuit is any electrical circuit that energizes signaling equipment.

True 100 Signaling Circuit

A "structure" is that which is built or constructed, other than equipment.

True 100 Structure

Ungrounded means not connected to ground or to a conductive body that extends the ground connection.

True 100 Ungrounded

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

True 100 service Conductors

The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected without sustaining damage exceeding defined acceptance criteria is known as the "_____."

available fault current 100 short-circuit rating

The NEC defines a(n) "_____" as a structure that stands alone or that is separated from adjoining structures by fire walls.

building

An enclosure designed for either surface mounting or flush mounting provided with a frame in which a door(s) can be hung is called a(n) "_____."

cabinet

A device that provides a means to connect intersystem bonding conductors for _____ systems to the grounding electrode system is an intersystem bonding termination.

communications 100 intersystem bonding termination

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.

controller 100 Controller

A neutral conductor is the conductor connected to the _____ of a system, which is intended to carry current under normal conditions.

neutral point 100 Neutral Conductor

A clothes closet is defined as a _____ room or space intended primarily for storage of garments and apparel.

nonhabitable 100 Clothes Closet

A circuit breaker is a device designed to _____ the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.

open 100 circuit breaker

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

covered 100 conductor, covered

A _____ location is protected from weather and not subject to saturation with water or other liquids.

damp

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.

demand factor 100 Demand Factor

An interactive inverter is an inverter intended for use in parallel with a(n) _____ to supply common loads that may deliver power to the utility.

electric utility 100 Interactive Inverter

Nonconductive optical fiber cable contains no metallic members and no other _____ materials.

electrically conductive

A solderless 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.

establishes a connection 100 connector, pressure (solderless)

A(n) _____ is an unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit, and the normally noncurrent-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.

ground fault 100 ground fault

A conducting object through which a direct connection to earth is established is a "_____."

grounding electrode 100 Grounding Electrode

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."

grounding electrode 100 Grounding Electrode Conductor

Nonautomatic is defined as requiring _____ to perform a function.

human intervention

According to the Code, "automatic" is performing a function without the necessity of _____.

human intervention 100 automatic

A building that contains three or more dwelling units is called a "_____."

multifamily dwelling

Equipment enclosed in a case or cabinet with a means of sealing or locking so that live parts cannot be made accessible without opening the enclosure is said to be "_____."

sealable

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."

separately derived system

Overhead system service-entrance conductors are the service conductors between the terminals of the _____ and a point where they are joined by a tap or splice to the service drop or overhead service conductors.

service equipment 100 Service-Entrance Conductors, Overhead System

Underground system service-entrance conductors are the service conductors between the terminals of the _____ and the point of connection to the service lateral or underground service conductors.

service equipment 100 Service-Entrance Conductors, Underground System

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.

service point

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

solidly grounded 100 Grounded, Solidly

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.

supplementary overcurrent device 100 Overcurrent Device, Supplementary