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: |
#1. Which of the following terms is defined in the NEC as “Performing a function without the necessity of human intervention.” ?
CORRECT ANSWER INFO:
Correct answer is D: Automatic
NEC DEFINITION:
Automatic: Performing a function without the necessity of human intervention.
(Article 100 Definitions; Part I General)
#2. What is a cutout box?
CORRECT ANSWER INFO:
Correct answer is D: An enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure.
NEC DEFINITION:
Cutout Box: An enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure.
(Article 100 Definitions: Part I General)
#3. What is a string of outdoor lights that is suspended between two points called?
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)
#4. The NEC defines a continuous load as one where the maximum current is expected to continue for
CORRECT ANSWER INFO:
Correct answer is B: 3 hours or more.
NEC DEFINITION:
Continuous Load: A load where the maximum current is expected to continue for 3 hours or more.
(Article 100 Definitions: Part I General)
#5. The term the NEC uses to describe a device that provides a means for connecting equipment bonding conductors of communications systems to the grounding electrode of a buildings electrical system is called
CORRECT ANSWER INFO:
Correct answer is A: an intersystem bonding termination
NEC DEFINITION:
Intersystem Bonding Termination: A device that provides a means for connecting intersystem bonding conductors for communications systems to the grounding electrode system.
(Article 100 Definitions: Part I General)
#6. Intermittent operation of electrical equipment in which the load conditions are regularly recurrent is called
CORRECT ANSWER INFO:
Correct answer is C: periodic duty
NEC DEFINITION:
Duty, Periodic: Intermittent operation in which the load conditions are regularly recurrent.
(Article 100 Definitions: Part I General)
NT NOTE:
For the sake of study convenience we list the NEC definitions for types of duty as applied to the cycling of electrical loads:
Duty, Continuous: Operation at a substantially constant load for an indefinitely long time.
Duty, Intermittent: Operation for alternate intervals of (1), load and no load; or (2) load and rest; or (3) load, no load, and rest.
Duty, Periodic: Intermittent operation in which the load conditions are regularly recurrent.
Duty, Short-Time: Operation at a substantially constant load for a short and definite, specified time.
Duty, Varying: Operation at loads, and for intervals of time, both of which may be subject to wide variation.
For the new apprentice electrician and even experienced ones, all this can seem confusing but keep in mind the NEC is for all electricians in different capacities of work. An industrial electrician or one that is part of a facilities management team will understand these terms as they apply to their job more than say an electrician performing residential or commercial construction and service work.
#7. Which of the following types of circuit breakers is one where there is purposely introduced a delay in the tripping action of the circuit breaker, which delay decreases as the magnitude of the current increases?
CORRECT ANSWER INFO:
Correct answer is C: Inverse Time Circuit Breaker
NEC DEFINITION:
Inverse Time Circuit Breaker: A qualifying term indicating that there is purposely introduced a delay in the tripping action of the circuit breaker, which delay decreases as the magnitude of the current increases.
(Article 100 Definitions; Part I General)
#8. What is a general term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media?
CORRECT ANSWER INFO:
Correct answer is C: Askarel
NEC DEFINITION:
Askarel: A general term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media.
(Article 100 Definitions; Part I General)
#9. What is a dead front?
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)
#10. As applied to wiring methods, the NEC defines “exposed” as
CORRECT ANSWER INFO:
Correct answer is D: On or attached to the surface or behind panels designed to allow access.
NEC DEFINITION:
Exposed (as applied to wiring methods): On or attached to the surface or behind panels designed to allow access.
(Article 100 Definitions: Part I General)
NT NOTE:
So there are two definitions of exposed in the NEC. One is as applied to wiring methods (see above) and the other is as applied to live parts.
We list the other definition here for your convenience:
Exposed (as applied to live parts): Capable of being inadvertently touched or approached nearer than a safe distance by a person.
Informational Note: The term applies to parts that are not suitably guarded, isolated, or insulated.
(Article 100 Definitions: Part I General)