NEC Article 100 Definitions Quiz

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About NEC Article 100 Definitions Quiz

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This quiz through repetition by design helps you learn the definitions contained in Article 100. It contains only 10 questions generated from a bank of 121 questions. Quick and painless.
Each time you take the quiz, questions are shuffled and 10 are picked randomly from the bank. The more often you take it the more questions you will be exposed to and the more you will learn the definitions within the National Electrical Code. And you will learn them.
Pressing the submit button immediately returns your score along with the test questions and correct answer information for those questions you answered wrong. The test results are a very useful study tool.

Trade Category:	Electrical
Test Category:	National Electrical Code
Test Subject:	Article 100 Definitions
Test Number:	1 of 1
Questions on Test:	10
From Bank of:	121 Questions
Randomly Generated:	Yes
Test Time:

Results

#1. A Composite Optical Fiber Cable is

a cable made of multiple materials that looks good to the eye and is healthy because it is also made of fiber.

a cable used for composing musical data for use in mp3 files.

RG-6 cable.

a cable containing optical fibers and current-carrying electrical conductors.

CORRECT ANSWER INFO:

Correct answer is D: a cable containing optical fibers and current-carrying electrical conductors.

NEC DEFINITION:

Composite Optical Fiber Cable: A cable containing optical fibers and current-carrying electrical conductors.

(Article 100 Definitions: Part 1 General)

#2. What is a dead front?

Without live parts exposed to a person on the operating side of the equipment.

An impotent electrician.

Extreme weather patterns such as a series of tornado's wiping out everything in its path with death and destruction causing major electrical surging and blowing out substation switchgear. It is oddly often followed by a tropical front.

The front of energized switchgear when an inexperienced person gets hung up on live parts.

CORRECT ANSWER INFO:

Correct answer is A: Without live parts exposed to a person on the operating side of the equipment.

NEC DEFINITION:

Dead Front: Without live parts exposed to a person on the operating side of the equipment.

(Article 100 Definitions: Part I General)

#3. “Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts.”

Isolated

Elevated

Enclosed

Contained

CORRECT ANSWER INFO:

Correct answer is C: Enclosed

NEC DEFINITION:

Enclosed: Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts.

(Article 100 Definitions: Part I General)

#4. What is the definition of “dust-ignitionproof” as it applies to hazardous locations?

Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure.

Equipment that if there is dust upon it, does not allow switching to take place in hazardous locations unless you dust it off first.

Self-dusting equipment that does not allow the accumulation of dust in certain hazardous (classified) locations.

Equipment that douses the dust accumulated on it with a fire-retardant mist so that it does not ignite in the presence of arcs, sparks, or excessive heat.

CORRECT ANSWER INFO:

Correct answer is A: Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure.

NEC DEFINITION:

Dust-Ignitionproof [asapplied to Hazardous (Classified) Locations: Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure.

(Article 100 Definitions: Part I General)

#5. Which of the following power systems could be considered part of a hybrid system?

Photovoltaic systems

Electric power production and distribution systems.

Wind power systems

A and C

CORRECT ANSWER INFO:

Correct answer is D: A and C

NEC DEFINITION:

Hybrid System: A system comprised of multiple power sources. These power sources could include photovoltaic, wind, micro-hydro generators, engine-driven generators, and others, but do not include electric power production and distribution network systems. Energy storage systems such as batteries, flywheels, or superconducting magnetic storage equipment do not constitute a power source for the purpose of this definition. The energy regenerated by an overwhelming (descending) elevator does not constitute a power source for the purpose of this definition.

(Article 100 Definitions: Part I General)

#6. Which of the following defines an industrial control panel in the NEC?

An assembly of two or more components consisting of power circuit components only, such as motor controllers, overload relays, fused disconnect switches, and circuit breakers.

An assembly of two or more components consisting of control circuit components only, such as pushbuttons, pilot lights, selector switches, timers, switches, and control relays.

An assembly of two or more components consisting of a combination of power and control circuit components.

Any of the above.

CORRECT ANSWER INFO:

Correct answer is D: Any of the above

NEC DEFINITION:

Industrial Control Panel: An assembly of two or more components consisting of one of the following: (1) Power circuit components only, such as motor controllers, overload relays, fused disconnect switches, and circuit breakers. (2) Control circuit components only, such as pushbuttons, pilot lights, selector switches, timers, switches, and control relays. (3) A combination of power and control circuit components. These components, with associated wiring and terminals, are mounted on, or contained within, an enclosure or mounted on a subpanel.

The industrial control panel does not include the controlled equipment.

(Article 100 Definitions: Part I General)

#7. According to the NEC, Information Technology Equipment (ITE)

is rated 1000V or less

is located in ordinary locations such as offices and business establishments

does not process communications circuits as defined in NEC Art 800.2

All of the above

CORRECT ANSWER INFO:

Correct answer is D: Any of the above

NEC DEFINITION:

Information Technology Equipment (ITE): Equipment and systems rated 1000V or less, normally found in offices or other business establishments and similar environments classified as ordinary locations, that are used for creation and manipulation of data, voice, video, and similar signals that are not communications equipment as defined in Part I of Article 100 and do not process communications circuits as defined in 800.2.

Informational Note: For information on listing requirements for both information technology equipment and communications equipment, see UL 60950-1-2014, Information Technology Equipment — Safety —Part 1: General Requirements or UL 62368-1-2014, Audio/Video Information and Communication Technology Equipment Part 1: Safety Requirements.

(Article 100 Definitions: Part I General)

#8. Which is the NEC definition of a “Clothes Closet”?

A small storage area where clothes, shoes, and deep secrets are kept.

A large, almost room-like area where your wife keeps thousands of shoes, many of which she will only wear once, and also enough clothes to insulate the Taj Mahal even if it were located in Santa Land at the North Pole.

A nonhabitable room or space intended primarily for storage of garments and apparel.

A nonhabitable room where you keep your extra set of golf clubs among other paraphernalia.

CORRECT ANSWER INFO:

Correct answer is C: A nonhabitable room or space intended primarily for storage of garments and apparel.

NEC DEFINITION:

Clothes Closet: A nonhabitable room or space intended primarily for storage of garments and apparel.

(Article 100 Definitions: Part 1 General)

#9. What is a string of outdoor lights that is suspended between two points called?

Temporary Lighting

Festival Lighting

Festoon Lighting

Outdoor Lighting

CORRECT ANSWER INFO:

Correct answer is C: Festoon Lighting

NEC DEFINITION:

Festoon Lighting: A string of outdoor lights that is suspended between two points.

(Article 100 Definitions: Part I General)

#10. What is a covered conductor?

A conductor encased within material of composition or thickness that is not recognized by the Code as electrical insulation.

An insulated conductor.

A conductor that is concealed.

A conductor that is approved by the NEC.

CORRECT ANSWER INFO:

Correct answer is A: A conductor encased within material of composition or thickness that is not recognized by the Code as electrical insulation.

NEC DEFINITION:

Conductor, Covered: A conductor encased within material of composition or thickness that is not recognized by this Code as electrical insulation.

(Article 100 Definitions: Part I General)

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