Journeyman Electrician's 2026 Edition 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 2026 Edition flashcards as text
In a commercial occupancy, what is the general lighting load used for load calculations expressed in volt-amperes per square foot?
Answer: 3 VA/sq ft
NEC Table 220.12 assigns a general lighting load of 3 VA per square foot for commercial occupancies.
What is the purpose of an equipment bonding jumper in an electrical system?
Answer: To provide a low-impedance fault return path to the source
An equipment bonding jumper connects non-current-carrying metal parts to ensure a low-impedance path back to the source to facilitate overcurrent device operation.
When is an arc-fault circuit interrupter (AFCI) required for a bedroom circuit in a dwelling unit?
Answer: For all 120V, 15A or 20A branch circuits supplying outlets in bedrooms
NEC 210.12(A) requires AFCI protection for all 120V, 15A or 20A branch circuits supplying outlets or devices in dwelling unit bedrooms.
What is the minimum headroom required in front of electrical equipment rated over 600V?
Answer: 6.5 feet
NEC 110.26(A)(1) requires a minimum working space height of 6.5 feet (or the height of the equipment if greater) for electrical equipment rated over 600V.
For a 3-phase motor with a nameplate full-load current (FLC) of 40A, what is the maximum rating of an inverse time circuit breaker used as the branch-circuit short-circuit and ground-fault protective device?
Answer: 100A
Per NEC Table 430.52, an inverse time breaker for a 3-phase AC motor may be rated up to 250% of FLC; 40A × 250% = 100A.
What is the minimum wire-bending space required at the terminals of a panelboard bus when the conductor is 1/0 AWG copper?
Answer: 3 inches
NEC Table 312.6(A) requires a minimum 3-inch wire-bending space for a 1/0 AWG conductor entering a terminal in a panelboard.
A 120/240V single-phase service entrance has two ungrounded conductors and one grounded (neutral) conductor. What is the minimum size copper grounding electrode conductor for a 200A service?
Answer: 4 AWG
Per NEC Table 250.66, a 200A service with copper service entrance conductors requires a 4 AWG copper grounding electrode conductor.