Journeyman Electrician’s Exam Journeyman Electrician's 2026 Edition 4

Question 1

In a commercial occupancy, what is the general lighting load used for load calculations expressed in volt-amperes per square foot?

Accepted Answer

3 VA/sq ft

Answer

NEC Table 220.12 assigns a general lighting load of 3 VA per square foot for commercial occupancies.

Question 2

What is the purpose of an equipment bonding jumper in an electrical system?

Accepted Answer

To provide a low-impedance fault return path to the source

Answer

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.

Question 3

When is an arc-fault circuit interrupter (AFCI) required for a bedroom circuit in a dwelling unit?

Accepted Answer

For all 120V, 15A or 20A branch circuits supplying outlets in bedrooms

Answer

NEC 210.12(A) requires AFCI protection for all 120V, 15A or 20A branch circuits supplying outlets or devices in dwelling unit bedrooms.

Question 4

What is the minimum headroom required in front of electrical equipment rated over 600V?

Accepted Answer

6.5 feet

Answer

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.

Question 5

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?

Accepted Answer

100A

Answer

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.

Journeyman Electrician’s Exam Practice Test

Journeyman Electrician’s Exam Practice Test

Journeyman Electrician’s Exam Journeyman Electrician's 2026 Edition 4