Electrical Code & Standards Flashcards
7 cards from real CEI practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Electrical Code & Standards flashcards as text
Which standard governs the testing and listing of electrical equipment used to establish NEC compliance for listed products?
Answer: UL listing standards
UL (Underwriters Laboratories) and other NRTLs develop product safety standards used to list electrical equipment referenced in the NEC.
The National Electrical Safety Code (NESC) primarily applies to which type of electrical installation?
Answer: Utility supply lines and communication systems
ANSI C2 (NESC) governs utility electric supply and communication lines, and their support structures, outside of buildings.
Under the NEC, what is the maximum length of a flexible cord that may be used as a substitute for fixed wiring when connecting a stationary appliance?
Answer: Flexible cords cannot be used as a substitute for fixed wiring
NEC 400.12 prohibits the use of flexible cords and cables as a substitute for the fixed wiring of a structure.
According to NEC 230.70, the service disconnecting means must be located at a readily accessible location nearest to:
Answer: The point of entrance of the service conductors into the building
NEC 230.70(A)(1) requires the service disconnect to be located at the nearest point of entrance of the service conductors.
When inspecting a commercial kitchen, which NEC section would a CEI reference to verify GFCI protection requirements for receptacles?
Answer: 210.8(B)
NEC 210.8(B) covers GFCI protection requirements for receptacles in commercial/non-dwelling occupancies, including commercial kitchens.
Under the NEC, which wiring method is NOT permitted for use in ducts, plenums, or air-handling spaces?
Answer: Nonmetallic sheathed cable (NM-B)
NEC 300.22 prohibits NM-B (nonmetallic sheathed cable) in ducts, plenums, or other air-handling spaces due to fire and smoke spread concerns.
NEC 110.3(B) requires that listed or labeled equipment be installed and used in accordance with:
Answer: Instructions included in the listing or labeling
NEC 110.3(B) mandates that listed or labeled equipment be installed and used per the instructions included in the listing or labeling.