Article 90

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.

Answer 1: True

Installations shall comply with the material located in the NEC Annexes because they are part of the requirements of the Code.

False

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

False

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

Which of the following systems shall be installed and removed in accordance with the NEC requirements?

Signaling conductors, equipment, and raceways, Communications conductors, equipment, and raceways, and Electrical conductors, equipment, and raceways.

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

The NEC does not cover electrical installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles.

True

Compliance with the provisions of the NEC will result in _____.

an electrical system essentially free from hazard

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, and 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, signaling and communication conductors, and optical fiber cables

Compliance with the Code and proper maintenance result in an installation that is _____.

essentially free from hazards, not necessarily efficient or convenient, and not necessarily adequate for good service or future expansion

The NEC does apply to installations in _____.

floating buildings, mobile homes, and recreational vehicles

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

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

The authority having jurisdiction has the responsibility for _____.

making interpretations of rules, deciding upon the approval of equipment and materials, and waiving specific requirements in the Code and permitting alternate methods and material if safety is maintained

This Code covers the installation of _____ for public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings.

optical fiber cables, electrical equipment, and raceways

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

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

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, and special conditions

Electrical hazards often occur because the initial _____ did not provide for increases in the use of electricity and therefore wiring systems become overloaded.

wiring