Journeyman Electrician's General 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 General flashcards as text
What is the minimum size copper equipment grounding conductor (EGC) required for a circuit protected by a 60-amp overcurrent device?
Answer: 10 AWG
NEC Table 250.122 requires a minimum 10 AWG copper EGC for circuits protected by overcurrent devices rated up to 60 amps.
A receptacle outlet must be installed so that no point along the floor line of a wall in a dwelling unit is more than how far from a receptacle?
Answer: 6 feet
NEC 210.52(A) requires receptacles in dwelling unit living areas such that no point is more than 6 feet from a receptacle along the floor line.
Which conductor color is PROHIBITED from being used as an ungrounded (hot) conductor in a building's wiring system?
Answer: Green
NEC 250.119 reserves green (and green with yellow stripes) exclusively for equipment grounding conductors; it cannot be used for ungrounded conductors.
What is the purpose of the neutral conductor in a 120/240V single-phase, 3-wire service?
Answer: It carries unbalanced current from 120V loads and serves as a common return
The neutral carries the difference (unbalanced) current between the two hot legs for 120V loads and serves as the common return path.
What minimum clearance must unguarded live parts operating at 601–2,500V require from grounded parts in working space?
Answer: 3 feet
NEC Table 110.26(A)(1) Condition 1 specifies a minimum 3-foot working clearance for voltages from 601 to 2,500V to ground.
When installing EMT in a wet location, which of the following is required?
Answer: Fittings and connectors must be listed for use in wet locations
NEC 358.10(B) permits EMT in wet locations provided fittings and connectors are listed for wet locations.
A single-pole breaker protecting a 120V, 20-amp circuit must be capable of interrupting how much fault current to be considered adequate?
Answer: The breaker must match the available fault current at the installation
NEC 110.9 requires that all overcurrent devices have an interrupting rating equal to or greater than the available fault current at the point of installation.