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. The term “solidly grounded” means
CORRECT ANSWER INFO:
Correct answer is A: Connected to ground without inserting any resistor or impedance device.
NEC DEFINITION:
Grounded, Solidly: Connected to ground without inserting any resistor or impedance device.
(Article 100 Definitions: Part I General)
#2. What is an overcurrent device that generally consists of a control module that provides current-sensing, electronically derived time-current characteristics, energy to initiate tripping, and an interrupting module that interrupts current when an overcurrent occurs? (Such fuses may or may not operate in a current-limiting fashion, depending on the type of control selected.)
CORRECT ANSWER INFO:
Correct answer is A: Electronically Actuated Fuse
NEC DEFINITION:
Electronically Actuated Fuse: An overcurrent device that generally consists of a control module that provides current-sensing, electronically derived time-current characteristics, energy to initiate tripping, and an interrupting module that interrupts current when an overcurrent occurs. Such fuses may or may not operate in a current-limiting fashion, depending on the type of control selected.
(Article 100 Definitions: Part I General)
#3. Which is the general definition of a “circuit breaker” in the NEC?
CORRECT ANSWER INFO:
Correct answer is C: A device designed to open and close a circuit by nonautomatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.
NEC DEFINITION:
Circuit Breaker: A device designed to open and close a circuit by nonautomatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.
(Article 100 Definitions; Part I General)
#4. What is a “Multiwire Branch Circuit”?
CORRECT ANSWER INFO:
Correct answer is D: A branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has an equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system.
NEC DEFINITION:
Multiwire Branch Circuit: A branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has an equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system.
(Article 100 Definitions; Part I General)
#5. What is an electric power production system that is operating in parallel with and capable of delivering energy to an electric primary source supply system?
CORRECT ANSWER INFO:
Correct answer is C: Interactive system
NEC DEFINITION:
Interactive System: An electric power production system that is operating in parallel with and capable of delivering energy to an electric primary source supply system.
(Article 100 Definitions: Part I General)
#6. A multi-family dwelling is defined in the NEC as
CORRECT ANSWER INFO:
Correct answer is A: A building that contains three or more dwelling units.
NEC DEFINITION:
Dwelling, Multi-Family: A building that contains three or more dwelling units.
(Article 100 Definitions: Part I General)
NT NOTE:
For the sake of study convenience we list the NEC definitions for the different types of dwelling units:
Dwelling, One-Family: A building that consists solely of one dwelling unit.
Dwelling, Two-Family: A building that consists solely of two dwelling units.
Dwelling, Multifamily: A building that contains three or more dwelling units.
Dwelling Unit: A single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
#7. Which of the following terms is defined as “A device that, by insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.”
CORRECT ANSWER INFO:
Correct answer is D: All of the above
NEC DEFINITION:
Attachment Plug (Plug Cap) (Plug): A device that, by insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.
(Article 100 Definitions; Part I General)
#8. What is a grounding electrode?
CORRECT ANSWER INFO:
Correct answer is A: A conducting object through which a direct connection to earth is established.
NEC DEFINITION:
Grounding Electrode : A conducting object through which a direct connection to earth is established.
(Article 100 Definitions: Part I General)
NT COMMENTARY:
Although the three other answer choices are considered grounding electrodes according to NEC 250-52, the definition in Article 100 is as above in correct answer A.
#9. What is the NEC’s definition of an electric sign?
CORRECT ANSWER INFO:
Correct answer is B: A fixed, stationary, or portable self-contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols designed to convey information or attract attention.
NEC DEFINITION:
Electric Sign: A fixed, stationary, or portable self-contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols designed to convey information or attract attention.
(Article 100 Definitions: Part I General)
NT NOTE:
I kinda like my simplified answer better… A.) An energized display that communicates information.
#10. What is defined as a unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function.
CORRECT ANSWER INFO:
Correct answer is B: Device
NEC DEFINITION:
Device: A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function.
(Article 100 Definitions: Part I General)
NT NOTE:
The other three choices; switch, receptacle, and cord cap, are all devices.