Test: Chapter 1
__________ enclosures are constructed so that dust will not enter under specific test conditions
Dusttight
An overload is the same as a short circuit or ground fault. True or False?
False
A "structure" is that which is built or constructed, other that equipment. True or False
True
As used in the NEC, equipment includes ____________.
all of these - fittings - appliances - machinery
"Bonded" is defined as ____________ to establish electrical continuity and conductivity.
connected
A ____________ location may be temporarily subject to dampness and wetness.
dry
Conductors normally used to carry current shall be ____________ unless otherwise provided in this Code.
of copper or aluminum
The highest current at rated voltage that a device is identified to interrupt under standard test conditions is the "__________."
withstand rating
A single receptacle is a single contact device with no other contact device on the same ____________.
yoke
Connection by means of wire-binding screws, studs, and nuts having upturned lugs or the equivalent shall be permitted for ____________ AWG or smaller conductors.
10
________________ 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
" ____________ " is a term indicating that there is an intentional delay in the tripping actions of the circuit breaker, which decreases as the magnitude of the current increases.
Inverse time
"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 or False
True
A "signaling circuit" is any electrical circuit that energizes signaling equipment. True or False
True
Accepted industry workmanship practices are described in ANSI/NECA 1-2015, Standard for Good Workmanship in Electrical Construction, and other ANSI-approved installation standards. True or False
True
Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at least equal to the current that is available at the line terminals of the equipment. True or False
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 or False
True
An opening in an outlet box where one or more receptacles have been installed is called "_______________."
a receptacle outlet
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) "____________ ."
any of these - attachment plug - plug cap - plug
Communications equipment includes equipment and conductors used for the transmission of ____________.
any of these - audio - video - data
"Special permission" is the written consent from the ____________.
authority having jurisdiction
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) "____________."
bonding conductor or jumper
The temperature rating associated with the ampacity of ____________ shall be selected and coordinated so as not to exceed the lowest temperature rating of any connected termination, conductor, or device
conductor
A ____________ location is protected from weather and not subject to saturation with water or other liquids.
damp
Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it, and of 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 "____________."
explosionproof equipment
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
A device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when the current to ground exceeds the values established for a Class A device, is a(n) "_____________."
ground-fault circuit interrupter
Connected (connecting) to ground or to a conductive body that extends the ground connection is called "___________."
grounded
A branch circuit that supplies only one utilization equipment is a(n) ____________ branch circuit.
individual
Equipment or materials inclduded in a list published by a testing laboratory acceptable to the authority having jurisdiction are said to be "___________."
listed
A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class, such as 120/240V, is called "_______________ voltage."
nominal
The NEC defines a(n) "__________" as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved.
qualified person
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
The conductors and equipment from the electric utility that deliver electric energy to the wiring system of the premises served is called a "_____________."
service
The "__________" is the point of connection between the facilities of the serving utility and the premises wiring.
service point
An enclosure constructed so that moisture will not enter the enclosure under specific test conditions is called "___________."
watertight
Conduit installed underground or encased in concrete slabs that are in direct contact with the earth is considered a ____________ location.
wet
A permanently connected surge-protective device (SPD) intended for installation on the load side of the service disconnect overcorrect device, including SPDs located at the branch panel, is a Type ____________ SPD.
2
A Class A GFCI protection device is designed to trip when the current to ground is ____________ or higher.
6 mA
In many circumstances, the authority having jurisdiction can be a property owner or his/her designated agent. True or False?
True
Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling. True or False
True
Some cleaning and lubricating compounds can cause severe deterioration of many plastic materials used for insulating and structural applications in equipment. True or False
True
When the term "exposed," as it applies to live parts, is used in the Code, it refers to ____________.
a and b - 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
Premises wiring includes ____________ wiring from the service point or power source to the outlets.
a and b - interior - exterior
A cable routing assembly is composed of single or connected multiple channels as well as associated fittings, forming a structural system to ____________ communications wires and cables, optical fiber and data cables; and Class 2, Class 3, and Type PLTC cables; and power-limited fire alarm cables in plenum, riser, and general-purpose applications.
a and b - support - route
An accessory, such as a locknut, intended primarily to perform a mechanical function rather than an electrical function best describes ____________.
a fitting
A(n) ____________ that performs field evaluations of electrical or other equipment is known as a "Field Evaluation Body (FEB)."
a or b - part of an organization - organization
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)
Admitting close approach not guarded by locked doors, elevation, or other effective means, is referred to as "_____________."
accessible (as applies to equipment)
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
Internal parts of electrical equipment, including ____________, shall not be damaged or contaminated by a foreign materials such as pain, plaster, cleaners, abrasives, or corrosive residues.
all of these - busbars - wiring terminals - insulators
A hoist way is any ____________ in which an elevator or dumbwaiter is designed to operate.
all of these - hatchway or well hole - vertical opening or space - shaftway
Unless identified for use in the operating environment, no conductors or equipment shall be ____________ having a deteriorating effect on the conductors or equipment.
all of these - located in damp or wet locations - exposed to fumes, vapors, liquid, or gases - exposed to excessive temperatures
Wooden plugs driven into holes in ____________ or similar materials shall not be used for securing electrical equipment.
all of these - masonry - concrete - plaster
In judging equipment for approval, considerations such as ____________ shall be evaluated.
all of these - mechanical strength - wire-bending space - arcing effects
The ____________ of a circuit to be protected 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.
all of these - overcorrect devices - total circuit impedance - equipment short-circuit current ratings
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.
all of these - plenum - riser - general-purpose
Wiring shall be installed so that the completed system will be free from ____________, other than as required or permitted elsewhere in the Code.
all of these - short circuits - ground faults - connections to the earth
For a circuit to be considered a multiwire branch circuit, it shall have ____________ .
all of these - 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
The maximum current, in amperes, that a conductor can carry continuously under the conditions of use, where the temperature will not be raised in excess of the conductor's insulation temperature rating is called its "___________."
ampacity
"Outline lighting" is an arrangement of ____________ to outline or call attention to the shape of a building.
any of these - incandescent lamps - electric-discharge lighting - electrically powered light sources
Connection of conductors to terminal parts shall ensure a thoroughly good connection without damaging the conductors and shall be made by means of ____________.
any of these - solder lugs - pressure connectors - splices to flexible leads
An arc-fault circuit interrupter is a device intended to de-energize the circuit when a(n) ____________ is detected.
arc fault
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
Conductor sizes are expressed in American Wire Gage (AWG) or in ____________.
circular mils
Wires are considered ____________ if rendered inaccessible by the structure or finish of the building.
concealed
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
Composite optical fiber cables contain optical fibers and ____________ .
current-carrying electrical conductors
A(n) "___________" is a device, or group of devices, by which the conductors of a circuit can be disconnected from their source of supply.
disconnecting means
A ____________ is a single unit that provides complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
dwelling unit
A building that contains three or more dwelling units is called a "____________".
dwelling unit
Non conductive optical fiber cable contains no metallic members and no other ____________ materials.
electrically conductive
Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts is called "____________."
enclosed
The installed conductive path(s) that provide(s) a ground-fault current path and connected normally concurrent-carrying metal parts of equipment together and to the system grounded conductor or to the grounding electrode conductor, or both, is known as a(n) "__________ conductor."
equipment grounding
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
The word "Earth" best describes what NEC term?
ground
A(n) ____________ is an unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit, and the normally concurrent-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or bath.
ground fault
A system intended to provide protection of equipment from damaging line-to-ground fault currents by causing a disconnecting means to open all ungrounded conductors of the faulted circuit levels less than the supply circuit overcorrect device defines "___________."
ground-fault protection of equipment
A system or circuit conductor that is intentionally grounded is called a(n) "______________."
grounded conductor
A conducting object through which a direct connection to earth is established is a "___________."
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
Conductor terminal and splicing devices shall be ____________ for the conductor material and they shall be properly installed and used.
identified
Connectors and terminals for conductors more finely stranded than Class B and Class C, as shown in Table 10 of Chapter 9, shall be ____________ for the specific conductor class or classes.
identified
Recognized as suitable for the specific purpose, function, use, environment, and application is the definition of "___________."
labeled
"Continuous duty" is defined as ____________.
operation at a substantially constant load for an indefinitely long time
A(n) "___________" is a point on the wiring system at which current is taken to supply utilization equipment.
outlet
An "optical fiber cable" is a factory assembly or field assembly of one or more optical fibers having a(n) ____________ covering.
overall
A panel, including buses and automatic overcorrect devices, designed to be placed in a cabinet or cutout box and accessible only from the front is known as a "__________."
panelboard
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
When one electrical circuit controls another circuit through a relay or an equivalent device, the first circuit is called a "_____________."
remote-control circuit
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 selection and installation of overcorrect protective devices so that an overcorrect condition will be localized to the restrict outages to the circuit or equipment affected, is called "____________"
selective coordination
A(n) "__________ system" is an electrical source, other than a service, having no direct connection(s) to circuit conductors of any other electrical source than those established by grounding and bonding connections.
separately derived
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.
service equipment
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 "___________."
short-circuit current rating
Only wiring methods recognized as ____________ are included in this Code.
suitable
A "raceway" is an enclosed channel designed expressly for the holding of wires, cables, or busbars. with additional functions as permitted in the Code. True or False?
true
A rain tight 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 or False?
true
A(n) "__________" enclosure is constructed or protected so that exposure to the weather will not interfere with successful operation.
weatherproof