Article 100 (9 pages, 95 questions) Flashcards
Article 100 - 2008
admitting close approach, not guarded by locked doors, elevation, or other effective means, is referred to as __________
accessible
(as applied to equipment)
capable of being removed or exposed without damaging the building structure to 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 and such is known as
accessible, readily
the current in amperes a conductor can carry continuously, where the temperature will not be raised in excess of the conductor’s insulation temperature rating is called its ______
(see 310.10 and 320.15 for details and examples, figure 100-4)
ampacity
acceptable to the authority having jurisdiction means ______
approved
a device that established a connection between the conductors of the attached flexible cord and the conductors connected to the receptacle is called a(n)
ANY of these
-attachment plug
-plug cap
-plug
where no statutory requirements exists, the AHJ could be a property owner or his/ her agent, such as an architect or engineer
TRUE
a _________ is an area that includes a basin with a toilet, tub, or shower
Bathroom
bonded can be described as ______ to establish electrical continuity and conductivity
connected
resistance: opposition to current flow in DC circuit
impedance: opposition to current flow in AC circuit, inductive reactance, capacitive reactance
the connection between the grounded conductor and the equipment grounding conductor at the service is accomplished by installing a(n) _________ jumper
main bonding
the conductors between the final over current device protecting the circuit and the outlet(s) are known as _________ conductors
branch - circuit
a branch circuit that supplies only one utilization equipment is a(n) ______ branch circuit
individual
*“dedicated” has no meaning in the code
for a circuit to be considered a multi-wire branch circuit, it shall have _____
ALL of these:
- two or more ungrounded conductors with a voltage potential between them
-a grounded conductor having equal voltage potential between it and each ungrounded conductor of the circuit
-a grounded conductor connected to the neutral or grounded terminal of the system
the NEC defines a(n) _________ as a structure that stands alone or that is cut off from adjoining structures by firewalls, with all the opening therin protected by approved fire doors.
Building.
An enclosure for either surface mounting or flush mounting provided with a frame in which a door can be hung is called a(n)
cabinet
_________ 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 circuit increases
inverse - time
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
a clothes closet is defined as a _______ room or space intended primarily for storage of garments and apparel
nonhabitable
communications equipment includes equipment used for the transmission of _____
All of these
-audio
-video
-data
cables are considered ______ is rendered inaccessible by the structure or finish of the building
concealed
a separate portion of a raceway system that provides access through a removable cover to the interior of the system, defines the term _________
conduit body
a solderless pressure connector is a device that ________ between conductors or between conductors and a terminal by means of mechanical pressure
establishes a connection
a load is considered to be continuous if the maximum current is expected to continue for _______ or more
3 hours
a ______ is a device that governs, in some predetermined manner, the electric power delivered to the apparatus to which it is connected
controller
the choice of overcurrent protective devices so that an overcurrent condition will be localized and restrict outages to the cicuit or equipment affected, is called _____
selective coordination
_______ are designed for surface mounting with a swinging door
cutout boxes
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
a unit of an electrical system that carries or controls electric energy as its principal function is a(n) ________
device
a(n) ______ is a device by which the conductors of a circuit can be disconnected from their source of supply
disconnecting means
*in sight of/ within sight of
a _____ is a single unit that provides independent living facilities for persons, including permanent provisions for living, sleeping, cooking, and sanitation.
dwelling unit
a building that contains three or more dwelling units is called a ______
multifamily dwelling
a fixed, stationary, or portable self-contained, electrically illuminated equipment with words or symbols designed to convey information or attract attention, describes _____
an electric sign
as used in the NEC, equipment includes _________
ALL of these:
-fittings
-appliances
-machinery
on or attached to the surface or behind access panels designed to allow access is known as _____
exposed
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 overcurrent device”
feeder
an accessory, such as a locknut, intended to perform a mechanical function best describes a _______
fitting
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.
garaje
the word “earth” best describes what NEC term
ground
“connected to ground or to a conductive body that extends the ground connection” is called _________
grounded
a circuit conductor that is intentionally grounded is called a ________
grounded conductor
“connected to ground without the insertion of any resistor or impedance device” is ______
solidly grounded
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 an ______
ground- fault circuit interrupter
a “class A” GFCI-protection device is designed to trip when the ground-fault current is ______ or higher
6 mA
a system intended to provide protection of equipment from damaging line-to-ground fault currents by opening all ungrounded conductors of the faulted circuit at current levels less that the supply circuit overcurrent device defines the term _______
ground-fault protection of equipment installed
the installed conductive path that connects normally noncurrent-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) _____
equipment grounding 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 equipment to a grounding electrode or to a point on the grounding electrode system is called the ______ conductor
grounding electrode
250.66
a ______ is an accommodation that combines living, sleeping, sanitary, and storage facilities within a compartment
guest room
a ________ is an accommodation with two or more contiguous rooms comprising a compartment that provides living, sleeping, sanitary, and storage facilities
guest suite
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
“recognized as a suitable for the specific purpose, function, use, environment, and application” is the definition of _____
identified (as applied to equipment)
within sight means visible and not more than ______ distant from the equipment
50ft
the highest current at rated voltage that a device is intended to interrupt under standard test conditions is the ________
interrupting rating
a device that provides a means to connect ________ systems grounding and bonding conductors to the building grounding electrode system is an intersystem bonding termination
communications
a kitchen is defined as an area with a sink and _____ facilities for food preparation and cooking
permanent
equipment or materials to which a symbol or other identifying mark or a product evaluation organization that is acceptable to the AHJ has been attached is known as _______
labeled
an outlet intended for the direct connection of a lampholder or a luminaire is a(n)
lighting outlet
listed equipment or materials is included in a ______ published by testing labratory acceptable to the AHJ
list
a ________ location would be protected from weather and not subject to saturation with water or other liquids, such locations include partially protected locations under canopies, marquees, and roofed open porches
damp
a ________ location may be temporarily subject to dampness and wetness
dry
conduit installed underground or encased in concrete slabs that are in direct contact with the earth is considered a _______ location
wet
the term “luminaire” includes an individual lampholder
false
a neutral conductor is the conductor connected to the _______ of a system, which is intended to carry neutral current under normal conditions
neutral point
the common point on a wye-connection in a polyphase system describes a neutral point
TRUE
a(n) ________ is a point on the wiring system at which current is taken to supply utilization equipment
outlet
outline lighting may include 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
any current in excess of the rated current of equipment or the ampacity of a conductor is called _______
overcurrent
overload, short circuit, ground fault
an overload is the same as a short circuit or ground fault
FALSE
a panel, including buses and automatice overcurrent devices, designed to be placed in a cabinet or cutout box and accessible only from the front
panelboard
a ________ is a chamber to which one or more ducts are connected and form part of the air distribution system
plenum
premises wiring includes ______ wiring from the service point or power source to the outlets
ALL of these
-interior
-exterior
-underground
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 hazards involved
qualified person
HFPA 70E-2004, Standard for Electrical Safety in the Workplace, provides information to help determine the electrical safety training requirements expected of a “qualified person”
TRUE
a raceway is an enclosure designed for the installation of conductors, cables, or busbars
TRUE
a contact device installed at an outlet for the connection of an attachment plug is known a(n) ________
receptacle
a single receptacle is a single contact device with no other contact device on the same
yoke
an opening in an outlet box where one of more receptacles have been installed is called ______
receptacle outlet
when one electrical circuit controls another circuit through a relay, the first circuit is called a ______
remote control circuit
a(n) _________ system is a premises wiring system whose power is derived from a source of electric energy that has no direct electrical connection to supply conductors originating in another system
separately derived
the conductors from the electric utility that deliver electric energy to the premises is called ______
service
service conductors originate at the service point and terminate at the service equipment
TRUE
overhead service conductor from the last pole or other aerial support to and including the splices, if any, are called ____ conductors
service-drop
the _____ is necessary equipment, usually consisting of a circuit breaker(s) or swith(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
underground service conductors between the street main and the first point of connection to the service entrance conductors are known as the _____
service lateral
the ____ is the point of connection between the serving utility and the premises wiring
service point
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 _____
short circuit current rating
a signaling circuit is any electric circuit that energizes signaling equipment
TRUE
special permission would be the written consent from the ______
AHJ
a structure is that which is built or constructed
TRUE
a(n) ______ is intended to provide limited overcurrent protection for specific applications and utilization equipment, such as luminaires and applications. this limited protection is in addition to the protection provided by the required branch-circuit overcurrent protective device
surge protection device
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
type II
type I - line
type III - 30 ft away
typle IV - at equipment
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
ungrounded describes “not connected to ground or a conductive body that extends the ground connection”
TRUE
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
greatest
a value assigned to a circuit or system for the purpose of conveniently designating its voltage class such as 120/240 V is called _________ voltage
nominal
