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Timed mock exams
Two-part mocks at the real exam’s pace and 70% thresholds, drawn from a growing bank of NEC-verified questions — no question repeats within a mock.
Texas Journeyman · 2023 NEC
You know the trade.
Now beat the clock.
The exam is open-book — which is exactly why it's hard. It measures how fast you find the answer in the Code. WattPrep trains that one skill.
7-day free trial · iPhone · works offline · no account needed
27.86%
passed in FY2024 (TDLR)
130 min
for 59 code questions
110 min
for 26 calculations
70%
to pass — on each part
How it works
Three steps, one skill
Find the gap, drill it under a clock, then prove it on a timed mock.
1
Take the free diagnostic
Ten questions, about five minutes. You get a readiness score broken down by NEC domain — no guessing where you're weak.
2
Drill your weak domains
Practice by domain with the clock running. Every answer cites the article it came from, so you learn the book's layout as you go.
3
Run timed mocks
Two separately scored parts at the real exam’s pace — 2.2 minutes a question — and the same 70% thresholds. When exam day feels like a repeat, the clock stops being the enemy.
What's inside
Built for the jobsite, not a classroom
Dark, one-handed, offline. Everything keyed to the 2023 NEC.
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Field calculators
Conduit fill, ampacity derating, motor circuits, dwelling and service loads, box fill, voltage drop.
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Index Speed Trainer
Drill how fast you land on the right article — the skill that decides the clock.
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Readiness by domain
Accuracy across all seven exam domains, updated with every answer.
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Private by design
No account, no analytics, no tracking. Your data never leaves the phone.
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Works offline
Runs fully on device — basements, trucks, anywhere without signal.
Why speed wins
Open-book is the trap
Most candidates walk in knowing the material. Then they burn four minutes hunting one table and never get the time back. The book is allowed precisely because finding things in it is the test.
- Every answer cites its NEC article, so you learn where it lives
- Drills are timed by default — pressure is the point
- Calculations hand-checked against the 2023 NEC
- Weak domains surface automatically as you practise
Pricing
Costs less than one retake
Start with the free diagnostic. No ads, no upsells, no subscription traps.
Monthly
$11.99/mo
Full question bank, unlimited timed mocks and the Index Speed Trainer. Cancel anytime.
7-day free trial
BEST VALUE
Lifetime · Texas
$39.99
One payment. Every question, mock, drill and calculator — yours through the NEC 2026 changeover.
Pays for itself in 3 monthsFAQ
Questions, answered
How hard is the Texas journeyman electrician exam?
Per TDLR figures for FY2024, 2,365 of 8,490 attempts passed — a 27.86% pass rate. Because the exam is open-book, the difficulty is rarely the code knowledge itself: it's finding the right article fast enough.
How many questions is it, and how long do I get?
Two parts: 59 code-knowledge questions in 130 minutes, and 26 calculation questions in 110 minutes. You need 70% on each part separately — passing one doesn't carry the other.
Which NEC edition does WattPrep use?
The 2023 National Electrical Code. Every calculator and explanation cites the article it comes from, so you build a map of the book as you study.
Are these real exam questions?
No. Everything is original study material written for exam prep. WattPrep is not affiliated with TDLR, PSI or the NFPA, and we don't reproduce secured exam content.
Is my study data private?
Yes. There's no account and no analytics. Your answers, scores and drill results live only on your iPhone and are deleted with the app. See the privacy policy.
How do I cancel?
Subscriptions are handled by Apple: Settings → your name → Subscriptions → WattPrep. Cancel at least 24 hours before renewal. The Lifetime purchase isn't a subscription and never renews.
Ready when you are
Find out where you stand — free
A 10-question diagnostic scores your readiness by domain in about five minutes.
Start your free diagnostic