Journeyman Electrician's Hazardous Locations Flashcards
7 cards from real Journeyman Electrician’s Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Journeyman Electrician's Hazardous Locations flashcards as text
NEC Article 500 classifies hazardous locations using which system?
Answer: Division system only
NEC Article 500 establishes the Division classification system (Division 1 and Division 2) for Class I, II, and III hazardous locations.
Which NEC article governs spray application, dipping, and coating processes using flammable or combustible liquids?
Answer: Article 516
NEC Article 516 covers spray application, dipping, coating, and printing processes that use flammable or combustible liquids or powders.
A commercial gasoline dispensing station (gas station) is primarily governed by which NEC article?
Answer: Article 514
NEC Article 514 covers motor fuel dispensing facilities, including commercial gas stations and marinas where fuel is dispensed into vehicles.
Commercial garages used for vehicle repair and service are covered by:
Answer: Article 511
NEC Article 511 covers commercial garages and repair/storage garages where volatile flammable liquids or gases are used in fueling or repairing motor vehicles.
In a Class I, Zone 0 location under NEC Article 505, which protection technique is acceptable?
Answer: Intrinsic safety 'ia' or special protection 's'
Zone 0 has ignitable concentrations present continuously, requiring only the highest protection levels: intrinsic safety 'ia' or special protection 's' per NEC 505.
Aircraft hangars are covered under which NEC article?
Answer: Article 513
NEC Article 513 covers aircraft hangars where volatile flammable liquids and gases used as aircraft fuels create hazardous conditions.
Under NEC Article 505, Zone 2 is most comparable to which Division classification?
Answer: Class I, Division 2
Zone 2 under Article 505 is roughly equivalent to Division 2, where ignitable concentrations are unlikely to occur under normal operating conditions.