Free Diagnostic Quiz
Find out where you stand before committing to a full study plan. 25 questions covering NEC code knowledge and electrical calculations - the same topics on the journeyman electrician exam.
- 25 questions
- ~15 minutes
- 70% to pass
- Instant results
Short on time? The 10-question version takes about 6 minutes and still shows your weakest categories.
NEC Code Knowledge
Questions on grounding, overcurrent protection, conductor sizing, raceway fill, and more - straight from the NEC codebook.
Electrical Calculations
Voltage drop, conduit fill, box fill, Ohm's law, and other calculations you'll see on the journeyman exam.
Instant Feedback
See if you're right or wrong after each question, with detailed explanations and NEC code references.
Frequently Asked Questions
How long does the diagnostic quiz take?
About 15 minutes for most candidates. It is 25 questions and untimed — you can pause and come back if needed, though your session stays in browser storage so you should finish in one sitting. Short on time? The quick 10-question version takes about 6 minutes.
Do I need an account to take the quiz?
No. The diagnostic is completely free, no signup required. You see your score instantly. Enter your email if you want the full category-by-category breakdown, the per-question review with explanations, and a copy of your score report in your inbox.
How is my score calculated?
Your overall score is the percentage of questions you got right. We also break the score down by category and exam portion (NEC Knowledge vs Calculations) so you can see exactly where to focus your study time.
Will this match my state’s exam format?
Questions are written in the same multiple-choice format used by PSI, ICC, and other testing providers. The categories map to the major NEC content domains tested by every state exam — Texas, California, Florida, and beyond.
Can I retake the quiz?
Yes, as many times as you want. Each attempt pulls from a random subset of the question bank, so your second attempt will look different from your first.