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. What does the NEC define as: “A drawing or other document provided by the manufacturer of the intrinsically safe or associated apparatus, or of the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus, that details the allowed interconnections between the intrinsically safe and associated apparatus or between the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus?
CORRECT ANSWER INFO:
Correct answer is D: Control Drawing [as applied to Hazardous (Classified) Locations]
NEC DEFINITION:
Conduit Drawing [as applied to Hazardous (Classified) Locations]: A drawing or other document provided by the manufacturer of the intrinsically safe or associated apparatus, or of the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus, that details the allowed interconnections between the intrinsically safe and associated apparatus or between the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus.
(Article 100 Definitions: Part I General)
#2. What is an inverter intended for use in parallel with an electric utility to supply common loads and may deliver power to the utility?
CORRECT ANSWER INFO:
Correct answer is B: Interactive inverter
NEC DEFINITION:
Interactive Inverter: An inverter intended for use in parallel with an electric utility to supply common loads that may deliver power to the utility.
(Article 100 Definitions: Part I General)
NT COMMENTARY:
The answers for C (solar power inverter) and D (wind power inverter) are interactive inverters.
#3. What is the conductor that is used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system?
CORRECT ANSWER INFO:
Correct answer is B: Grounding Electrode Conductor
NEC DEFINITION:
Grounding Electrode Conductor: A conductor used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system.
(Article 100 Definitions: Part I General)
#4. What is a conduit body?
CORRECT ANSWER INFO:
Correct answer is D: A separate portion of a conduit or tubing system that provides access through a removable cover to the interior of the system at a junction of two or more sections of the system or at a terminal point of the system.
NEC DEFINITION:
Conduit Body: A separate portion of a conduit or tubing system that provides access through a removable cover(s) to the interior of the system at a junction of two or more sections of the system or at a terminal point of the system.
Boxes such as FS and FD or larger cast or sheet metal boxes are not classified as conduit bodies.
(Article 100 Definitions: Part I General)
#5. Which of the following terms does the NEC define as ” The connection between the grounded circuit conductor and the equipment grounding conductor at the service.” ?
CORRECT ANSWER INFO:
Correct answer is B: Main Bonding Jumper
CORRECT ANSWER INFO:
Main Bonding Jumper: The connection between the grounded circuit conductor and the equipment grounding conductor at the service.
(Article 100 Definitions; Part I General)
#6. What is an enclosure defined as?
CORRECT ANSWER INFO:
Correct answer is D: Enclosure
NEC DEFINITION:
Enclosure: The case or housing of apparatus, or the fence or walls surrounding an installation to prevent personnel from accidentally contacting energized parts or to protect the equipment from physical damage.
(Article 100 Definitions: Part I General)
#7. Exposed (as applied to live parts) is defined as
CORRECT ANSWER INFO:
Correct answer is C: Capable of being inadvertently touched or approached nearer than a safe distance by a person.
NEC DEFINITION:
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)
NT Note:
So there are two definitions of exposed in the NEC. The first is as applied to live parts and the second is as applied to wiring methods.
We list it here for your convenience:
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)
#8. What are circuit conductors called that are between the service equipment and the final branch-circuit overcurrent device?
CORRECT ANSWER INFO:
Correct answer is B: Feeder
NEC DEFINITION:
Feeder: All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device.
(Article 100 Definitions: Part I General)
#9. When a piece of equipment is said to be externally operable, it is
CORRECT ANSWER INFO:
Correct answer is A: capable of being operated without exposing the operator to contact with live parts.
NEC DEFINITION:
Externally Operable: Capable of being operated without exposing the operator to contact with live parts.
(Article 100 Definitions: Part I General)
#10. When an electrical installation is said to be covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers, casings, barriers, rails, screens, mats, or platforms to remove the likelihood of approach or contact by persons or objects to a point of danger, it is said to be
CORRECT ANSWER INFO:
Correct answer is C: Guarded
NEC DEFINITION:
Guarded: Covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers, casings, barriers, rails, screens, mats, or platforms to remove the likelihood of approach or contact by persons or objects to a point of danger.
(Article 100 Definitions: Part I General)
NT COMMENTARY:
Imagine the code-making panel having to provide all that language to define the word “guarded”? Probably because years ago they had to change it from a simple common sense definition to cover an incident before this specific language had to be included!