New Jersey Business and Law Exam (Electrical Contractor and Master Plumber) 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.
- 50 questions (same as real exam)
- 130 minute time limit
- 11 topic areas covered
- 257 questions in pool
- Detailed explanations
Texts preferred · 9am–9pm Central
New Jersey Business and Law (Electrical Contractor and Master Plumber) Practice Exam Guide
What's on the exam
Questions per topic, out of 50This practice exam is built around the official content outline for the New Jersey Business and Law (Electrical Contractor and Master Plumber) exam: Business Organization, Licensing, Estimating and Bidding, Contract Management, Project Management, Risk Management, Safety, Labor Law, Financial Management, Tax Law, Lien Law.
There are two ways to practice. The free practice exam gives you 10 questions per attempt, and you can take it as many times as you like. The full practice exam gives you 50 questions on a 130 minutes clock, with a new draw from our question bank each time.
Business Organization 2 items
Our study plan for this topic: Business naming, trade names, trademarks, and New Jersey name reservation procedures.
Licensing 5 items
Our study plan for this topic: Electrical contractor license eligibility requirements (age, education, experience); Master plumber license eligibility requirements (age, experience, apprenticeship); License examination structure, scheduling, and retake rules; License renewal, late renewal, suspension, reactivation, and reinstatement procedures; Bonding, insurance, and workers' compensation requirements; Pressure seal issuance, proper use, misuse penalties, and return obligations; Commercial vehicle, stationery, and advertising identification requirements; Exemptions from licensure (electrical and plumbing).
Estimating and Bidding 7 items
Contract Management 8 items
Project Management 5 items
Risk Management 4 items
Our study plan for this topic: Workers' compensation insurance: NJ coverage requirements and penalties; Employment-related insurance (unemployment insurance, SUTA dumping, Social Security).
Safety 4 items
Our study plan for this topic: Underground utility safety and New Jersey One Call requirements; Environmental regulations and permits (EPA, New Jersey DEP).
Labor Law 4 items
Our study plan for this topic: Required federal and New Jersey state workplace postings; Workers' compensation coverage requirements and fraud.
Financial Management 5 items
Tax Law 3 items
Lien Law 3 items
Our study plan for this topic: Definition and purpose of a construction lien under NJ law (N.J.S. 2A:44A-1 et seq.); Parties entitled to file a lien claim (contractors, subcontractors, suppliers, licensed professionals); Exemptions from lien rights (public works, security agreements, residential contract non-compliance); Process and form requirements for filing a lien claim (N.J.S. 2A:44A-6 and 2A:44A-8); Filing deadlines (90-day non-residential / 120-day residential from last work provided); Service of lien claim requirements (10-day rule, methods of service, consequences of late service); Lien fund calculation and priority of lien claimants (first, second, third tier); Bonding around a lien and discharge of lien claim (surety bond or cash deposit).
Sample 1 — Contract Management
Question: Which contract provision allocates responsibility for extra costs due to unexpected subsurface or other physical conditions that differ materially from what was disclosed during the bid process?
- A. Indemnification
- B. Schedule acceleration
- C. Differing site conditions
- D. Force majeure
Correct Answer: C
A differing site conditions provision allocates the responsibility for extra costs due to unexpected site conditions. The owner is responsible for disclosing all site information during the bid process, and if errors or omissions occur, the owner may be responsible for incurring the extra construction cost.
Reference: NASCLA Contractors Guide, Contract Management chapter — Provisions to Limit Risk section
Sample 2 — Estimating and Bidding
Question: You own a piece of construction equipment that costs $30,000 per year to operate and maintain, and you estimate using it for 1,000 hours this year. For an upcoming project requiring 40 hours of use, what is your estimated project equipment cost?
- A. $750
- B. $1,500
- C. $3,000
- D. $1,200
Correct Answer: D
According to the NASCLA Contractors Guide (Page 7-4), the unit cost is calculated by dividing total yearly cost by estimated annual hours: $30,000 ÷ 1,000 = $30/hour. For 40 hours on a project: $30 × 40 = $1,200.
Reference: NASCLA Contractors Guide, Bidding and Estimating chapter — Determining Estimated Costs section
Sample 3 — Licensing
Question: A board that administers licensure examinations must report, on an annual basis, the passage and failure rates for each examination it administers. To whom must that report be made?
- A. The Division of Consumer Affairs
- B. The Legislature
- C. The Attorney General
- D. The Office of Administrative Law
Correct Answer: B
N.J.S.A. 45:1-43.1 requires any professional or occupational board, agency, or committee in the Division of Consumer Affairs or the Department of Environmental Protection that administers licensure examinations to report annually to the Legislature the passage and failure rates, along with any additional information relevant to interpreting examination results.
Reference: NASCLA Contractors Guide, New Jersey (2nd ed.), Appendix I, Page I-38
Your first score is just a starting point. After every attempt, the results page shows how you did on each outline topic, so you can see what to work on next. Compare your score with the real exam's passing score, 70% correct, and keep at it until you pass consistently.
- Start with the questions you know. Go through the whole exam once and bookmark anything you're unsure about. Our practice exams let you bookmark and come back.
- Circle back to your bookmarks on the second pass.
- Keep an eye on your pace. The real exam works out to about 2 minutes 36 seconds per question.
- Turn every miss into a lesson. After each attempt, look up each missed question's reference in your book and read the section.
| Questions | 50 questions |
| Time limit | 130 minutes |
| Passing score | 70% correct |
| Books in the exam room | Open book |
| Exam fee | $47 |
- 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.