Take JCR’s free 25-question electrical practice test to check your 2020 NEC knowledge. You get answer feedback and NEC references so you can see what to review. Enter your email and choose your state or city to start. No payment or credit card is required.
Try the free electrical mock exam
Open your 2020 NEC and answer the questions before checking the references. Record your time so you can track both accuracy and lookup speed.
Start the free 25-question test
2020 NEC · Email required · No credit card
What does the practice test cover?
The questions cover electrical exam topics including grounding and bonding, wiring methods, load calculations, motors and services. Use the feedback to identify which rules you know and which ones still take too long to find.
This is a short practice set. For a full study plan, compare your results with the subject outline for your license exam. State law, business questions and other required references need their own study time.
Is this the right test for my electrical license?
The free questions use the 2020 NEC. Check your state’s exam edition and official licensing links before using any practice test. Choosing a state in the quiz changes the course recommendation, not the code edition of the questions.
Studying for a journeyman, master or contractor exam? Match your final preparation to that exam’s topics, reference books, question count and time limit. Our journeyman exam guide and master exam guide explain the different paths.
How to learn from every answer
- Choose an answer before opening the explanation. A correct guess still needs review.
- Find the cited section in your NEC. Read the conditions and exceptions that affect the answer.
- Write down why you missed it. Was it the wrong table, a calculation error, a missed exception or an unfamiliar term?
- Practice that skill again. Solve a different question on the same topic before moving on.
If you knew the rule but searched too slowly, use our NEC lookup method. If calculations were the problem, review the electrical exam formulas and work each step on paper.
Need more practice or instructor help?
Get JCR’s 500+ question mock exam for $150, with printed and digital practice and NEC answer references. Want a guided study plan too? Choose your format:
Live Zoom classes Self-study bundle In-person NC classes
Check your exam’s code edition and state-specific requirements before choosing materials.
Free electrical practice test questions
Does the free test include answers?
Yes. JCR provides answer feedback and the relevant 2020 NEC references. Use the references to understand the rule behind each answer.
Can I take it without buying a course?
Yes. The 25-question test is free. The start form asks for your email and the state or city exam you are preparing for.
Are these actual licensing exam questions?
They are JCR practice questions for studying. Your licensing board and testing provider set the actual exam.
Quiz details, source links and JCR products checked October 26, 2026.
