Electrical Licensing

Journeyman Electrician Practice Test

Free sample questions with NEC article explanations, plus a full timed practice exam built to match the open-book journeyman licensing format.

NEC-cited answers Full timed exam Calculation walkthroughs AI instructor included

What the journeyman electrician exam actually tests

Journeyman exams are administered by your state board or a testing provider such as PSI, Pearson VUE, or ICC. The typical format is 80–100 multiple-choice questions in 4 hours, open-book against the NEC edition your state has adopted, with a 70–75% passing score. Confirm the exact question count, time limit, and code edition in your provider's candidate bulletin.

The hard part is not theory — it is finding the right article fast and running calculations without second-guessing the method. That is what our practice questions are built to train.

Calculations

Box and conduit fill, ampacity and derating, voltage drop, service and feeder sizing, dwelling load calculations, and motor circuits — the sections that decide most pass/fail outcomes.

Wiring methods & materials

Chapter 3 support spacing, bends, fittings, cable types (NM, MC, AC), and raceway rules that come up as fast lookup questions.

Grounding & bonding

Article 250 top to bottom: grounding electrode systems, equipment grounding conductor sizing, bonding jumpers, and separately derived systems.

Overcurrent protection

Article 240 small-conductor rules, tap rules, standard device ratings, and where the next-size-up rule does and does not apply.

Special occupancies & equipment

Hazardous locations, pools and spas, health care, HVAC and appliance circuits, transformers, and generators.

General requirements & safety

Article 110 working clearances, terminations, labeling, plus OSHA and NFPA 70E practices proctors like to test.

Free journeyman electrician practice questions

Four sample questions from the full Fieldora Journeyman Electrician Exam Prep track. Each one names the code article so you learn the lookup, not just the answer.

1. A 120-volt, 20-amp branch circuit supplies general-purpose receptacles in a dwelling. What is the maximum number of 12 AWG THHN conductors permitted in a 4 x 2-1/8 in. square box (30.3 cu in.) with no devices, clamps, or grounding conductors counted separately?
  • 10
  • 12
  • 13
  • 15
Explanation: NEC 314.16(B) assigns 12 AWG a free-space volume of 2.25 cu in. per conductor. 30.3 cu in. ÷ 2.25 = 13.4, so 13 conductors is the maximum. The trap is rounding up — box fill always rounds down.
2. Six current-carrying 10 AWG THHN conductors are installed in a single raceway in a 30°C ambient. Starting from the 75°C column, what is the adjusted ampacity?
  • 24 amps
  • 28 amps
  • 32 amps
  • 35 amps
Explanation: Table 310.16 gives 10 AWG THHN 35 amps at 75°C. Table 310.15(C)(1) requires an 80% adjustment factor for 4–6 current-carrying conductors: 35 × 0.80 = 28 amps. Note the 10 AWG overcurrent limit in 240.4(D)(7) still caps the breaker at 30 amps unless an exception applies.
3. What is the minimum size copper equipment grounding conductor required for a branch circuit protected by a 100-amp overcurrent device?
  • 10 AWG
  • 8 AWG
  • 6 AWG
  • 4 AWG
Explanation: Table 250.122 lists 8 AWG copper for overcurrent devices rated up to 100 amps. Candidates frequently confuse Table 250.122 (equipment grounding conductors, sized by breaker) with Table 250.66 (grounding electrode conductors, sized by service conductors).
4. A single-phase, 240-volt motor has a full-load current of 28 amps. What is the minimum branch-circuit conductor ampacity required?
  • 28 amps
  • 31 amps
  • 35 amps
  • 45 amps
Explanation: NEC 430.22 requires branch-circuit conductors for a single motor to be sized at 125% of the motor full-load current: 28 × 1.25 = 35 amps. Remember to use the table FLC value from Article 430 rather than the nameplate amps when the question supplies it.

What's inside the full prep course

Code-cited lessons

Every lesson points at the NEC article it comes from, so studying doubles as lookup practice.

Module quizzes

Targeted quizzes after each topic with instant feedback and worked calculations.

Full timed practice exam

Same pacing pressure as the real thing, so exam day is not the first time you're on a clock.

AI instructor

Ask why an answer is wrong and get the step-by-step method, diagrams, and drills on your weak areas.

Not ready for the journeyman exam yet?

Start with the free fundamentals track and move up when the calculations feel routine. Already licensed as a journeyman? The master track covers the business, load-calculation, and code-administration content the master exam adds.

Frequently asked questions

What is on the journeyman electrician exam?

Most state and city journeyman exams are open-book NEC exams of roughly 80–100 multiple-choice questions with a 4-hour limit and a 70–75% passing score. Content is weighted toward general requirements, wiring and protection, wiring methods and materials, equipment for general use, special occupancies, and calculations such as box fill, conduit fill, conductor ampacity and derating, service and feeder sizing, and motor circuits.

How many questions are on a journeyman electrician practice test?

Our timed practice exam mirrors the real format so you build code-lookup speed under pressure. This page gives you free sample questions first; the full Journeyman Electrician Exam Prep track includes module quizzes plus a full-length timed exam with an explanation and NEC article citation for every answer.

Is the journeyman electrician exam open book?

In nearly every jurisdiction, yes — you bring your own copy of the NEC edition your state has adopted. Tabbing is normally allowed; loose notes and handwritten margin additions usually are not. Always confirm the rules in your testing provider's candidate bulletin (PSI, Pearson VUE, ICC, or your state board) before exam day.

How hard is the journeyman electrician test?

The difficulty is rarely the electrical theory — it is time. Candidates who fail usually knew the material but could not find the code article fast enough. Practicing with a timed exam and drilling calculations until the method is automatic is what moves pass rates.

How much experience do I need before I can sit for the journeyman exam?

Most states require roughly 4 years (about 8,000 hours) of documented electrical experience under a licensed electrician, often paired with classroom hours through an apprenticeship. Requirements vary by state, so check your state license guide for exact hours, filing deadlines, and fees.

Is this journeyman electrician practice test free?

The sample questions on this page are free, with full explanations. The complete prep course — lessons, module quizzes, the full timed practice exam, and the AI instructor — is part of the Fieldora Journeyman Electrician Exam Prep track.

$99

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Enroll in Journeyman Prep
  • Code-cited lessons
  • Module quizzes
  • Full timed practice exam
  • AI instructor with diagrams
  • Certificate of completion
Built for the open-book NEC exam

Written by trades instructors and licensed electricians.