Electrical Codes & Standards Flashcards
7 cards from real Licensed Electrical Contractor practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Electrical Codes & Standards flashcards as text
Under NEC 700.12, legally required standby systems must restore power within how many seconds after loss of normal supply?
Answer: 30 seconds
NEC 700.12 requires emergency systems (Article 700) to restore power within 10 seconds, while legally required standby (Article 701) restores within 60 seconds.
NEC 406.9(B) requires all 15- and 20-ampere receptacles installed in wet locations to be listed as what type?
Answer: Weather-resistant and GFCI protected
NEC 406.9(B)(1) requires receptacles in wet locations to be listed as weather-resistant AND be GFCI protected.
According to NEC 501.15, in Class I, Division 1 hazardous locations, what type of conduit seal is required within 18 inches of an enclosure?
Answer: A conduit seal fitting filled with sealing compound
NEC 501.15(A)(1) requires a conduit seal fitting with sealing compound within 18 inches of any enclosure in Class I, Division 1 locations.
NEC 210.8(A)(2) requires GFCI protection for all 125-volt receptacles installed in which specific dwelling unit location?
Answer: Garages and grade-level portions of unfinished accessory buildings
NEC 210.8(A)(2) specifies GFCI protection for receptacles in garages and grade-level portions of unfinished or finished accessory buildings.
Under NEC 358.26, the maximum number of 90-degree bends between pull points in EMT conduit is:
Answer: Four 90-degree bends
NEC 358.26 limits EMT installations to a maximum of four quarter-bends (360 degrees total) between pull points.
NEC Article 800 covers communications circuits. These circuits must be separated from power circuits by at least how many inches when run in the same enclosure without a barrier?
Answer: 1 inch
NEC 800.133(A)(1)(b) requires a minimum of 2 inches of separation between communications and power conductors in the same enclosure unless a permanent barrier is installed.
According to NEC 550.32, a mobile home park must supply electrical service to each lot. The minimum service required per lot is:
Answer: 50-ampere, 120/240-volt service
NEC 550.32(A) requires each mobile home lot to be supplied with a minimum 50-ampere, 120/240-volt service.