Article 90
Which of the following systems shall be installed and removed 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 D
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 D
Compliance with the provisions of the NEC will result in _____.
an electrical system essentially free from hazard
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.
are not
If the NEC requires new products that are not yet available at the time a new edition is adopted, the ______ may permit the use of the products that comply with the most recent previous edition of the Code adopted by that jurisdiction.
authority having jurisdiction
The _____ has the responsibility for deciding on the approval of equipment and materials.
authority having jurisdiction
Installations used to export electric power from vehicles to premises wiring or for _____ current flow are covered by the NEC.
bidirectional
The Code contains provisions considered necessary for safety, which will not necessarily result in _____.
efficient use, convenience, good service or future expansion of electrical use.
The NEC applies to the installation of ______.
electrical conductors and equipment within or on public and private buildings, outside conductors and equipment on the premises, optical fibers and raceways.
Compliance with the Code and proper maintenance result in an installation that is _____.
essentially free from hazards, not necessarily efficient or convenient, not necessarily
The Code covers underground mine installations and self-propelled mobile surface mining machinery and its attendant electrical trailing cable.
false
This Code covers the installation of _____ for public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings.
fiber optics cables, electrical equipment, raceways
Nonmandatory Informative Annexes contained in the back of the Code book are _____.
for information only and not enforceable as a requirement of the Code
The NEC is _______.
for the practical safeguarding of persons and property
Chapters 1 through 4 of the NEC apply _____.
generally to all electrical installations
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
It is the intent of the NEC that 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
Hazards often occur because of _____.
overloading of wiring systems by methods or usage not in conformity with the NEC and initial wiring not providing for increases in the use of electricity
The Code does not cover installations under the exclusive control of an electrical utility such as _____.
service drops and laterals
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
In the NEC, the word(s) "_____" indicate a mandatory requirement.
shall or shall not
The NEC does apply to installations in _____.
ships, watercraft other than floating buildings, railways rolling stock, aircraft, or automobile vehicles other than mobile homes and recreational vehicles
Installations supplying _____ power to ships and watercraft in marinas and boatyards are covered by the NEC.
shore
Chapters 5, 6, and 7 of the NEC apply to _____.
special occupancies, special equipment, special conditions
Chapters 5, 6, and 7 apply to special occupancies, special equipment, or other special conditions and may supplement or modify the requirements in Chapters 1 through 7.
true
Communications wiring such as telephone, antenna, and CATV 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.
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.
true
Installations shall comply with the material located in the NEC Annexes because they are part of the requirements of the Code.
true
The NEC does not cover electrical installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles.
true
Electrical hazards often occur because the initial _____ did not provide for increases in the use of electricity and therefore wiring systems become overloaded.
wiring
