Article 90 Quiz

unit quiz for article 90 unit

The NEC is _____.

for the practical safeguarding of persons and property

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

all of these

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

an electrical system essentially free from hazard

The code contains provisions considered necessary for safety, which will not necessarily result in _____.

all of these

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

wiring

Hazards often occur because of _____.

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

The NEC applies to the installation of _____.

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

Installations supplying _____ power to ships and watercraft in marinas and boatyards are covered by the NEC.

Installations used to export electric power from vehicles to premises wiring or for _____ current flow and covered by the NEC.

The NEC does apply to installations in _____.

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

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

The code does not cover installations under the exclusive control of an electrical utility such as _____.

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.

Chapters1 through 4 of the NEC apply _____.

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.

Chapters 5, 6, and 7 of the NEC apply to _____.

Communications wiring such as telephone, antenna, and CATV wiring within a building shall not be required to comply with the installation requirements of chapter 1 through 7, except where specifically referenced in chapter 8.

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

The _____ has the responsibility for deciding on the approval of equipment and materials.

The authority having jurisdiction has the responsibility for _____.

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.

In the NEC, the word(s) “_____” indicate a mandatory requirement.

When the code uses “_____,” it means the identified actions are allowed but not required, and they may be options or alternative methods.

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.

Non-mandatory informative annexes contained in the back of the code book are _____.

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.

Factory installed _____ wiring of listed equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage.