Free Practice Test
Free Journeyman Electrician Practice Test
Try 10 free journeyman electrician practice questions with explanations. No signup is required for this practice set. Exam rules and adopted code editions vary by jurisdiction, so verify your current candidate bulletin before exam day.
What this set covers
What is included in this free journeyman electrician practice test?
The page includes 10 practice questions covering conductor sizing, overcurrent protection, grounding and bonding, wiring methods, receptacles, and voltage drop. The interactive widget scores its own five-question set; that result is practice feedback, not an exam-readiness or pass prediction.
Question count, time limit, passing score, allowed references, testing vendor, and adopted NEC edition vary by licensing authority. Use the current bulletin from the authority or vendor administering your exam.
Reference check
How do you verify an NEC reference?
Start with the exact code edition named by your licensing authority or candidate bulletin. Article and table references can change between editions, and local amendments can change what applies. Treat each practice explanation as a study prompt, then check it against the official edition and rules for your exam.
- 1. Confirm the editionUse the edition and permitted references in your current exam bulletin, not the year in a search result or an older practice book.
- 2. Open the sourceFind the article or table in the official NFPA publication for that edition before relying on a summarized answer.
- 3. Read the full conditionsCheck the table heading, notes, material, temperature column, and every condition in the question. A nearby number is not enough.
- 4. Check related rulesFollow any section references named by the table, then check the licensing authority's amendments before recording your answer.
Example — 2023 NFPA 70
For a question about the allowable ampacity of an insulated conductor, Table 310.16 can be a starting point. Its heading and notes define when the table applies, and the table directs readers to Section 240.4(D) for small-conductor overcurrent-protection limits. The conditions in the question determine the result; this example identifies a lookup path, not a universal conductor-size answer.
Journeyman Electrician · Question 1 of 5
What is the minimum size copper grounding electrode conductor required for a service supplied by 3/0 AWG copper service-entrance conductors?
Pick an answer to see the explanation + an instant AI breakdown.
10 Free NEC Practice Questions
Q1. A 20A branch circuit requires a minimum conductor size of:Show answer
✓ Correct Answer: 12 AWG
Per NEC Table 310.12, 12 AWG copper has an ampacity of 20A at 60°C — the minimum for a 20A circuit (NEC 210.19(A)).
Q2. The maximum overcurrent protection for 14 AWG copper conductors is:Show answer
✓ Correct Answer: 15A
NEC 240.4(D)(3) limits 14 AWG copper to a maximum 15A overcurrent device, regardless of ampacity calculations.
Q3. GFCI protection is required for receptacles within how many feet of a kitchen sink?Show answer
✓ Correct Answer: 6 feet
NEC 210.8(A)(6) requires GFCI protection for all receptacles within 6 feet of a kitchen sink in dwelling units.
Q4. What NEC article covers grounding and bonding?Show answer
✓ Correct Answer: Article 250
Article 250 covers all grounding and bonding requirements — the most heavily tested article on the journeyman exam.
Q5. The recommended maximum voltage drop for a branch circuit is:Show answer
✓ Correct Answer: 3%
NEC 210.19(A) FPN No. 4 recommends a maximum 3% voltage drop on branch circuits, with a combined 5% maximum for feeders and branch circuits.
Q6. AFCI protection is required in which areas of a dwelling unit per the 2023 NEC?Show answer
✓ Correct Answer: All 120V circuits in all rooms
The 2023 NEC expanded AFCI requirements to virtually all 120V branch circuits throughout dwelling units, including kitchens, bathrooms, and garages.
Q7. The minimum burial depth for Type UF cable under a residential driveway is:Show answer
✓ Correct Answer: 24 inches
Per NEC Table 300.5, UF cable installed under a residential driveway (motor vehicle traffic) requires a minimum 24-inch burial depth.
Q8. What is the maximum number of disconnecting means permitted for a single service?Show answer
✓ Correct Answer: 6
NEC 230.71(A) permits a maximum of 6 disconnects grouped in a single location for service entrance equipment.
Q9. Which NEC article covers wiring methods in general?Show answer
✓ Correct Answer: Article 300
Article 300 covers general requirements for wiring methods and materials — required reading for the journeyman exam. Article 310 covers conductors specifically.
Q10. A general-purpose 15A, 120V receptacle outlet must be installed so that no point on the wall is more than how far from an outlet?Show answer
✓ Correct Answer: 6 feet
Per NEC 210.52(A), receptacles must be spaced so that no point on a wall is more than 6 feet from an outlet — meaning outlets are required every 12 feet maximum.
What Does the Journeyman Electrician Exam Cover?
Journeyman electrician exams can cover wire sizing and ampacity, grounding and bonding, branch circuits and load calculations, overcurrent protection, wiring methods, conduit fill, voltage drop, and service equipment. The scope and code edition vary by licensing authority, so use the current candidate bulletin as your exam-specific checklist.
How Hard Is the Journeyman Electrician Exam?
Difficulty depends on the licensing authority, adopted NEC edition, question mix, time limit, and allowed references. Use this practice set to identify topics to review, then confirm the current format and rules in the bulletin for the exam you will take.
How to Study for the Journeyman Electrician Exam
- 1.Confirm allowed references. Check whether your exam is open-book and which markings or tabs the testing authority permits.
- 2.Drill calculations daily. Practice voltage drop, wire sizing, and conduit fill, then compare your weak areas with the topic list in your candidate bulletin.
- 3.Use timed practice deliberately. Match the question count and timing to the current format published for your exam.
- 4.Review every explanation. Use missed questions to choose the next code topic or calculation to revisit.
Frequently Asked Questions
Does the free-practice score show whether I am ready for the exam?
No. The score describes only the questions answered in that practice set. Use it to choose what to review next, not as a pass prediction.
Which NEC edition should I study?
Study the edition named in your current candidate bulletin or licensing-authority instructions. The adopted edition varies by jurisdiction and exam window.
How many questions and how much time are on the journeyman electrician exam?
There is no single national format. Confirm the current question count, time limit, passing score, allowed references, and calculator rules in your exam bulletin.
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