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Timed practice
Code and calculation sessions draw from 40 original NEC 2026 questions at the pace of each exam portion.
NEC 2026 practice · iPhone
You know the trade.
Now beat the clock.
Practice finding answers in your 2026 code book. Start with ten free questions, then review the cited NEC sections at your own pace.
Free diagnostic · iOS 17+ · 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 sessions
Practice with separate code and calculation pools at their respective exam pace. Sessions draw from the 40-question bank without repeating a question within a session.
What's inside
Built for the jobsite, not a classroom
Dark, one-handed and offline. Every question is keyed to the 2026 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
Knowing the material and finding it efficiently are different skills. Practise both: record how long a lookup takes, check the reference, and repeat the topics that slow you down.
- Every answer cites its NEC article, so you learn where it lives
- Drills are timed by default — pressure is the point
- Questions and supported calculator values checked against the 2026 NEC
- Weak domains surface automatically as you practise
Pricing
Try the diagnostic first
The 10-question diagnostic is free. The full 40-question bank, timed practice, calculators and Index Speed Trainer require a purchase.
Monthly
$11.99/mo
The 40-question bank, timed practice, calculators and Index Speed Trainer. Renews monthly unless cancelled.
7-day free trial
BEST VALUE
Lifetime · Texas
$39.99
One payment for the Texas content in the app, including the NEC 2026 question bank and study tools.
One-time purchase · no renewalFAQ
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. Those historical figures do not establish why candidates failed or predict your result on the current exam.
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?
WattPrep 1.0.4 uses 40 original questions checked against the 2026 National Electrical Code. Independent review by a licensed Texas electrician has not been completed. Read the edition notes and verify answers in your own code book.
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.
Get the free iPhone diagnostic