⚡ Kevin's Electrical Prep CourseNEC 2023 Study Guide

NEC 2023 Journeyman & Master Electrician Exam Prep

The complete practice test and study guide for the journeyman and master electrician license exams — built on the 2023 National Electrical Code by a 26-year electrician and 17-year electrical inspector.

Take the free 15-question test →
636 practice questions Worked-out math solutions Video lessons Drive-along audio Timed practice test NEC 2023
$200 for 6 months of full access
🛡️ Pass or your money back: if you fail your exam twice within your 6 months, you get a full refund.

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15-question sample test

Real exam-style journeyman & master questions — pick an answer and see the correct one plus the full worked-out explanation, exactly like the paid study guide. No sign-up needed.

Question 1 of 15Score: 0

See inside

A look inside the platform

A full walk-through of what you get on the inside — the questions, the flash cards, the videos, and the timed practice test, and how it all works together.

Simple pricing

One price. Full access.

No monthly fees, no upsells — everything above, for six months.

$200 / 6 months
Full access to the entire NEC 2023 study guide
  • All 636 practice questions with worked solutions
  • Spaced-repetition flash cards & browse-by-category
  • All video lessons and drive-along audio
  • The 80-question timed practice test
  • Printable NEC reference & test-day sheets
  • Study on your phone, tablet, or computer
🛡️ Pass or your money back — fail your exam twice within your 6 months and get a full refund.

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⏰ When to start — give yourself a runway

Start about 4 to 5 months before the date you plan to take your exam. That way, if you don't pass the first time, you can get right back in and retake within 2 to 3 weeks — while everything is still fresh in your mind. That's exactly why you get a full 6 months of access.

Free — no sign-up

Take these with you

A few things straight from inside the guide — free to use right now.

🎧

Hear the drive-along audio

About 30 seconds of the study-while-you-drive audio — real exam questions read aloud, quiz-style. This piece is the swimming-pool questions.

🚗 Play it in the truck — press play, lock your phone, and it keeps going.

📝

Test-day worksheet

The brain-dump sheet I write from memory before the exam — the Ohm's Law & Power wheels and the voltage-drop formulas. Print it or save the PDF.

Open & print the worksheet →
📖

How to look up code fast

A one-page guide to finding any rule in the NEC 2023 book fast — the index, the contents, and the numbering trick. Print it for your code book.

Open & print the guide →

Everything you get

What's inside the full study guide

One place to prepare for every kind of question on the journeyman and master exam — memorize, drill, calculate, watch, and listen.

📝

636 practice questions

Every question written to match the real journeyman & master exam and verified against the NEC 2023 book.

440 multiple-choice + 196 recall
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Worked-out math solutions

Every calculation is solved step-by-step — the rule, the table values, the answer, and the common mistakes.

130+ fully worked problems
🎯

Spaced-repetition flash cards

Smart review that brings back what you're about to forget and mixes in new questions as you improve.

Learns your weak spots
📚

Browse by NEC category

Drill one subject at a time — grounding, motors, boxes, services, load calcs — and track your mastery.

Every NEC subject
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Video lessons

Full topic walk-throughs — Ohm's Law, motors, box fill, services, and more — plus a clip on every math problem.

25 topic videos
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Drive-along audio

Study hands-free in the truck. Definitions and quick-recall facts read aloud, made for the road.

Screen-off, car-ready
📜

Timed practice test

An 80-question exam that feels like test day — real state timer, flag & review, and saved history, just like the PSI test.

Set to your state's clock
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NEC reference sheets

How the code book is laid out, how to look up a rule fast, conductor sizing, conduit fill, and motor circuits — printable.

Printable cheat-sheets
📝️

Test-day worksheet

The brain-dump sheet — Ohm's-law wheel, power wheel, and voltage-drop formulas — to write out before you start.

Print & practice

Why students pass

It doesn't just grade you — it teaches you the math

Miss a calculation and you get the whole method: the rule, the table lookups, the arithmetic, the answer, and the mistakes to avoid. Here's a real one from the guide.

Who built it

A real electrician & inspector — not a website that scraped questions

👨‍🏭

Hi, I'm Kevin. I've been an electrician for over 26 years and an electrical inspector for more than 17. I've been exactly where you are — I went through the apprenticeship, and I've taken and passed the journeyman, the master, and the electrical contractor's exams. Every test you're working toward, I've sat for. I took what I've learned as an inspector — looking up code and troubleshooting every single day — and built it into this course. I think it's more genuine because I've lived it, and I'm still living it.

My goal is for this program to fully prepare you for every question you might face on the test — with real practice questions, worked-out math, video lessons, and audio you can study to while you drive. If you focus and try hard, you can learn anything and be the best at it.

26+ yrs electrician17+ yrs inspectorPassed JourneymanPassed MasterPassed Contractor

A taste of the memorizing

Random Things to Know

109 quick-recall facts every journeyman & master has to know cold — heights, clearances, ampacities, and all the little rules that show up on the test. Here's a look at some of them:

1
The grounded conductor is also known as the ___?
The neutral.
2
Who publishes the NEC?
The NFPA.
3
What is the stated purpose of the NEC?
The practical safeguarding of persons and property.
4
In the NEC, what does the word “shall” mean?
A mandatory requirement.
5
Plans/specifications may be required for builds over what size? (NEC Art. 80, where adopted)
Over 400 A and over 3,500 sq ft (NEC 80.21 — administrative; applies where the jurisdiction adopts Article 80).
6
What defines a “dwelling unit”?
Provisions for living, sleeping, cooking, and sanitation.
7
What kind of circuit must power a furnace?
An individual branch circuit.
8
Minimum bonding conductor for CSST gas piping?
#6 copper, to the service equipment.
9
NM cable is rated for what temperature?
60 °C.
10
Minimum size for overhead service-drop conductors?
#8.
11
How far above the roof must a service weatherhead be?
18 in (with a drip loop).
12
Service-entrance conductors cannot share a raceway with what?
Fused feeders or branch circuits.
13
Working space for a 120/240 V service panel?
3 ft deep, 6½ ft high, 30 in wide.
14
Maximum number of service disconnects (grouped together)?
6.
15
Minimum service size for a dwelling?
100 A.
16
Minimum service size for a commercial building?
60 A.
17
100–400 A dwelling service conductors may be sized at what % of the rating?
Not less than 83%.
18
Outdoor service disconnect for a mobile home — minimum height above ground?
2 ft.
19
Edison-base fuse holder — max voltage and amperes?
125 V, not over 30 A.
20
What adapter is used to fit an Edison-base fuse holder?
Type S.
21
An unmarked circuit breaker's interrupting rating is assumed to be?
5,000 A.
22
An AC general-use snap switch may control a MOTOR load up to what % of its rating?
80% for motor loads (it may carry resistive/inductive loads up to its FULL rating).
23
Where are overcurrent devices NOT permitted?
In bathrooms (dwellings).
24
Minimum ground-rod (GEC) conductor where not protected?
#6 copper.
25
A single ground rod must be ≤ how many ohms (or add a second)?
25 ohms.
26
Minimum bare copper for a concrete-encased (Ufer) electrode?
#4.
27
Minimum conductor for a ground ring?
#2.
28
Diameter and length of a ground rod?
5/8 in diameter, 8 ft long.
29
Bare aluminum grounding wire must be at least how far from earth?
18 inches.
30
What color are bonding screws?
Green.
31
How many threads must a grounding machine screw engage?
At least 2.
32
Floor receptacles don't count as wall receptacles if more than ___ from the wall?
18 inches.
33
Cables/raceways must be set back how far from the outer edge of a stud?
1¼ inches.
34
Thickness of a steel nail plate?
1/16 inch.
🔒 + 75 more facts — and the full printable list — in the course

Questions

Frequently asked

Is this study guide for the NEC 2023 code?
Yes. Every question, answer, code reference, and math problem is built and verified against the 2023 National Electrical Code (NFPA 70).
Does it cover both the journeyman and master exams?
Yes. It's a combined journeyman and master electrician prep guide, with load calculations, motors, services, grounding, conductor sizing, and the code-lookup questions both exams draw from.
How much is it and how long do I get access?
It's a one-time $200 for 6 months of full access — no monthly subscription and no auto-renewal surprises.
Do I have to download anything?
No. It runs in your web browser on your phone, tablet, or computer. You can also add it to your home screen to open it like an app.
What makes it different from other electrician exam prep?
It's built by a 26-year electrician and 17-year electrical inspector who passed the journeyman, master, and contractor exams — with every math problem worked out step-by-step, video lessons, and audio you can study to while you drive.
Will it work for my state's electrical exam?
The exams are based on the National Electrical Code, so the material applies anywhere the NEC 2023 is adopted. The practice test even sets its timer to your state's real exam clock (for example, the PSI journeyman and master exams).