Article 90 - Introduction to the NEC (Quarter 4)

Chapters 5, 6, and 7 of the NEC apply to _____. A: special occupancies B: special equipment C: special conditions D: all of these

D

Chapters 1 through 4 of the NEC apply _____. A: generally to all electrical installations B: only to special occupancies and conditions C: only to special equipment and material D: all of these

A

The Code does not cover installations under the exclusive control of an electrical utility such as _____. A: service drops and laterals B: electric utility office buildings C: electric utility warehouses D: electric utility garages

A

The NEC does apply to installations in _____. A: floating buildings B: mobile homes C: recreational vehicles D: all of these

D

Installations supplying _____ power to ships and watercraft in marinas and boatyards are covered by the NEC. A: shore B: primary C: secondary D: auxiliary

A

The _____ has the responsibility for deciding on the approval of equipment and materials. A: manufacturer B: authority having jurisdiction C: testing agency D: the owner of the premises

B

Compliance with the provisions of the NEC will result in _____. A: good electrical service B: an efficient electrical system C: an electrical system essentially free from hazard D: all of these

C

Electrical hazards often occur because the initial _____ did not provide for increases in the use of electricity and therefore wiring systems become overloaded. A: inspection B: owner C: wiring D: builder

C

Factory-installed _____ wiring of listed equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage. A: external B: associated C: internal D: all of these

C

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. A: electrical engineer B: master electrician C: authority having jurisdiction D: permit holder

C

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. A: are B: are sometimes C: are not D: may be

C

Installations used to export electric power from vehicles to premises wiring or for _____ current flow are covered by the NEC. A: emergency B: primary C: bidirectional D: secondary

C

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. A: external B: associated C: internal D: all of these

C

The NEC is _____. A: intended to be a design manual B: meant to be used as an instruction guide for untrained persons C: for the practical safeguarding of persons and property D: published by the Bureau of Standards

C

When the Code uses "_____," it means the identified actions are allowed but not required, and they may be options or alternative methods. A: shall B: shall not C: shall be permitted D: shall or shall not

C

Compliance with the Code and proper maintenance result in an installation that is _____. A: essentially free from hazards B: not necessarily efficient or convenient C: not necessarily adequate for good service or future expansion D: all of these

D

Hazards often occur because of _____. A: overloading of wiring systems by methods or usage not in conformity with the NEC B: initial wiring not providing for increases in the use of electricity C: manufacturing defects D: 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

D

In the NEC, the word(s) \"_____\" indicate a mandatory requirement. A: shall B: shall not C: shall be permitted D: shall or shall not

D

Nonmandatory Informative Annexes contained in the back of the Code book are _____. A: for information only B: not enforceable as a requirement of the Code C: enforceable as a requirement of the Code D: for information only and not enforceable as a requirement of the Code

D

The Code contains provisions considered necessary for safety, which will not necessarily result in _____. A: efficient use B: convenience C: good service or future expansion of electrical use D: all of these

D

The NEC applies to the installation of _____. A: electrical conductors and equipment within or on public and private buildings B: signaling and communication conductors C: optical fiber cables 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

This Code covers the installation of _____ for public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings. A: optical fiber cables B: electrical equipment C: raceways D: all of these

D

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

Installations shall comply with the material located in the NEC Annexes because they are part of the requirements of the Code. Answer 1: True Answer 2: False

False

The Code covers underground mine installations and self-propelled mobile surface mining machinery and its attendant electrical trailing cable. Answer 1: True Answer 2: False

False

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. Answer 1: True Answer 2: False

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. Answer 1: True Answer 2: False

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. Answer 1: True Answer 2: False

True

The NEC does not cover electrical installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles. Answer 1: True Answer 2: False

True