New Jersey Electrical Contractor Exam Practice Exam
Free Practice Exam
Test your knowledge with 10 questions from our pool of 20 free questions.
- 10 questions per attempt
- 30 minute time limit
- Unlimited attempts
- A new mix each time
- Instant results
Full Practice Exam
Complete exam simulation matching the real PSI test format.
- 100 questions (same as real exam)
- 255 minute time limit
- 12 topic areas covered
- 440 questions in pool
- Detailed explanations
Texts preferred · 9am–9pm Central
New Jersey Electrical Contractor Practice Exam Guide
What's on the exam
Questions per topic, out of 100This practice exam follows the official content outline for the New Jersey Electrical Contractor exam: General Electrical Knowledge, Raceways and Enclosures, Services, Feeders, and Branch Circuits, Overcurrent Protection, Conductors and Cables, Grounding and Bonding, Equipment for General Use, Special Occupancies, Special Equipment and Conditions, Motors and Controls, Low Voltage and Communications Circuits, Safety.
You can practice two ways. The free practice exam gives you 10 questions per attempt, and you can retake it whenever you like. The full practice exam gives you 100 questions on a 255 minutes clock, with a new draw from our question bank each attempt.
General Electrical Knowledge 10 items
Raceways and Enclosures 10 items
Services, Feeders, and Branch Circuits 10 items
Overcurrent Protection 5 items
Conductors and Cables 9 items
Grounding and Bonding 16 items
Equipment for General Use 9 items
Special Occupancies 5 items
Special Equipment and Conditions 5 items
Motors and Controls 12 items
Low Voltage and Communications Circuits 6 items
Safety 3 items
Our study plan for this topic: Working space clearances and dimensions around electrical equipment; Guarding of live parts against accidental contact; Arc-flash hazard warning labels and markings; Ground-fault circuit-interrupter (GFCI) protection for temporary installations; Equipment approval, listing, labeling, and identification requirements; Disconnecting means identification and lockout provisions; Enclosure type selection for environmental conditions; Overcurrent protection and interrupting ratings for temporary wiring.
Sample 1 — Grounding and Bonding
Question: You are connecting the grounding electrode conductor to a concrete-encased electrode at a new dwelling. The connection will be buried in concrete and inaccessible after construction. Is this installation acceptable?
- A. No, the connection must be enclosed in an accessible junction box
- B. Yes, an encased or buried connection to a concrete-encased electrode is not required to be accessible
- C. No, all grounding electrode conductor terminations must always be accessible
- D. Yes, but only if the connection is made with solder
Correct Answer: B
Per NEC 250.68(A), Exception No. 1, an encased or buried connection to a concrete-encased, driven, or buried grounding electrode shall not be required to be accessible. This permits the connection to be buried in concrete.
Reference: NEC 2023 Section 250.68(A), Exception No. 1
Sample 2 — Motors and Controls
Question: For motor overload protection, what percentage of the motor nameplate current rating is typically used as the maximum setting for overload devices?
- A. 125% for motors with a service factor of 1.15 or greater
- B. 130% for all motors regardless of service factor
- C. 115% for motors with a service factor less than 1.15
- D. Both A and C are correct
Correct Answer: D
According to NEC 430.32(A)(1), overload devices shall be rated or selected to trip at no more than 125% of the motor nameplate full-load current rating for motors with a marked service factor of 1.15 or greater, and 115% for motors with a service factor less than 1.15 or motors with a marked temperature rise not over 40°C.
Reference: NEC 2023 Section 430.32(A)(1)
Sample 3 — General Electrical Knowledge
Question: Under what condition may the authority having jurisdiction waive specific NEC requirements?
- A. When the installation is temporary
- B. When equivalent safety objectives can be achieved by alternative methods
- C. When the cost of compliance is excessive
- D. When the equipment is listed by a testing laboratory
Correct Answer: B
According to NEC 90.4, by special permission, the authority having jurisdiction may waive specific requirements in this Code or permit alternative methods where it is assured that equivalent objectives can be achieved by establishing and maintaining effective safety. Cost, convenience, or temporary status alone are not grounds for waiving NEC requirements.
Reference: NEC 2023 Section 90.4(C)
Your first attempt tells you where you're starting from. After every attempt, the results page shows your score for each outline topic, so you can see what to study next. Compare your score with the real exam's passing score, 70% correct, and keep going until you pass consistently.
- Answer the questions you know first, and bookmark the rest. Our practice exams let you bookmark and come back.
- Return to your bookmarks on the second pass.
- Keep a steady pace. The real exam works out to about 2 minutes 33 seconds per question.
- After each attempt, look up each missed question's reference and read the section.
| Questions | 100 questions |
| Time limit | 255 minutes |
| Passing score | 70% correct |
| Books in the exam room | Open book |
| Exam fee | $84 |
- Scores are given immediately after the examination, with a successful score report for passers and a diagnostic report of strengths and weaknesses for those who do not pass.
- Candidates retake only the failed examination(s), must wait 6 months from the previous testing date after a first or second failed attempt, and must pass all three examinations within three attempts.
Source: Electrical Contractor Licensure Examination Candidate Information Bulletin — New Jersey State Board of Examiners of Electrical Contractors, Updated 3/5/2026. Check the bulletin before test day: fees and rules can change.