General Electrical Theory & Code Definitions Flashcards
7 cards from real NEC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Electrical Theory & Code Definitions flashcards as text
Under the NEC, what is the definition of a 'branch circuit'?
Answer: The circuit conductors between the final overcurrent device and the outlet(s)
NEC Article 100 defines a branch circuit as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).
Which NEC term describes equipment that has been tested and listed by a nationally recognized testing laboratory?
Answer: Listed
NEC Article 100 defines 'listed' as equipment that has been evaluated by a nationally recognized testing laboratory and found to meet specific requirements.
What is the NEC definition of 'ampacity'?
Answer: The current in amperes a conductor can carry continuously under use conditions without exceeding its temperature rating
Ampacity is defined in NEC Article 100 as the current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
According to NEC Article 100, what is a 'feeder'?
Answer: All circuit conductors between the service equipment and the final branch-circuit overcurrent device
A feeder is defined as all circuit conductors between the service equipment, the source of a separately derived system, or other supply source and the final branch-circuit overcurrent device.
What does the NEC term 'identified' mean when applied to equipment or conductors?
Answer: Recognizable as suitable for a specific purpose, function, or use
Per NEC Article 100, 'identified' means recognizable as suitable for the specific purpose, function, use, environment, or application.
In electrical theory, if voltage remains constant and resistance doubles, what happens to current?
Answer: Current is halved
By Ohm's Law (I = V/R), if voltage is constant and resistance doubles, the current is halved.
What is the NEC definition of 'dwelling unit'?
Answer: A single unit providing complete and independent living facilities for one or more persons
NEC Article 100 defines a dwelling unit as a single unit providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking, and sanitation.