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. An “Adjustable Speed Drive System” is
CORRECT ANSWER INFO:
Correct answer is B: a combination of an adjustable speed drive, its associated motor(s), and auxiliary equipment.
NEC DEFINITION:
Adjustable Speed Drive System: A combination of an adjustable speed drive, its associated motor(s), and auxiliary equipment.
(Article 100 Definitions: Part 1 General)
#2. 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.
#3. Operation of electrical equipment at a substantially constant load for a short and definite specified time is called
CORRECT ANSWER INFO:
Correct answer is D: short-time duty
NEC DEFINITION:
Duty, Short-Time: Operation at a substantially constant load for a short and definite, specified time.
(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.
#4. What is the equipment protection called that is provided at current levels less than those required to protect conductors from damage through the operation of a supply circuit overcurrent device?
CORRECT ANSWER INFO:
Correct answer is C: Ground-fault protection of equipment
NEC DEFINITION:
Ground-Fault Protection of Equipment: A system intended to provide protection of equipment from damaging line-to-ground fault currents by operating to cause a disconnecting means to open all ungrounded conductors of the faulted circuit. This protection is provided at current levels less than those required to protect conductors from damage through the operation of a supply circuit overcurrent device.
(Article 100 Definitions: Part I General)
#5. According to the NEC, which of the following defines a Combustible Gas Detection System [as applied to Hazardous (Classified) Locations]?
CORRECT ANSWER INFO:
Correct answer is A:. A protection technique utilizing stationary gas detectors in industrial establishments.
NEC DEFINITION:
Combustible Gas Detection System [as applied to Hazardous (Classified) Locations] A protection technique utilizing stationary gas detectors in industrial establishments.
(Article 100 Definitions: Part 1 General)
#6. “Readily Accessible” is defined as
CORRECT ANSWER INFO:
Correct answer is D: capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to take actions such as to use tools (other than keys), to climb over or under, to remove obstacles, or to resort to portable ladders, and so forth.
NEC DEFINITION:
Readily Accessible: Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to take actions such as to use tools (other than keys), to climb over or under, to remove obstacles, or to resort to portable ladders, and so forth.
(Article 100 Definitions: Part I General)
#7. In the NEC a bare conductor is defined as
CORRECT ANSWER INFO:
Correct answer is C: a conductor having no covering or electrical insulation whatsoever.
NEC DEFINITION:
Conductor, Bare: A conductor having no covering or electrical insulation whatsoever.
(Article 100 Definitions: Part 1 General)
#8. What type of branch circuit is one that supplies two or more more receptacles or outlets for lighting and appliances?
CORRECT ANSWER INFO:
Correct answer is A: General-Purpose Branch Circuit
NEC DEFINITION:
General-Purpose Branch Circuit: A branch circuit that supplies two or more more receptacles or outlets for lighting and appliances?
(Article 100 Definitions; Part I General)
#9. A device or piece of equipment electrically connected to a source of voltage is said to be
CORRECT ANSWER INFO:
Correct answer is C: energized
NEC DEFINITION:
Energized: Electrically connected to, or is, a source of voltage
(Article 100 Definitions: Part I General)
#10. What is the NEC definition of ground?
CORRECT ANSWER INFO:
Correct answer is C: The earth
NEC DEFINITION:
Ground: The earth.
(Article 100 Definitions: Part I General)
NT NOTE:
Lets not overcomplicate this… It’s the earth… The common denominator in all electrical installations… Just stick a rod in it and we’re done.