CDL Trainer USA

Pass your CDL test the first time

855 CDL practice test questions based on the official FMCSA manual — every answer explained. Works 100% offline.

855 unique questionsBased on the official FMCSA manualNo repeats, no filler

Download the app — pick your store

Install without paying and try it first. One purchase unlocks the full course — the same on Google Play, App Store and Microsoft Store.

Try 8 questions right here ↓

CDL Trainer USA app - home screen with all CDL test sections

Try 8 questions right here

Real questions from the app, with the same explanations. Nothing to install.

What the app looks like

CDL Trainer USA app - home screen with all CDL test sections Air Brakes technical diagram - every numbered part explained Hazard perception - a photo from the driver's seat and 8 seconds to decide

Why our students pass

855 questions — every section

Based on the official CDL Manual (FMCSA model) — the same book the real test is based on.

198 road signs, not a sample

Regulatory, warning, construction and truck-specific signs — the full set you can be tested on, plus the ones you meet on the road every day. Drill them until you recognize each one instantly.

Authentic MUTCD signs

Official federal-standard vector artwork — the signs look exactly like on the road. Exam-required signs are marked EXAM

Every answer explained

Not just right or wrong — a clear explanation of why, so the rule sticks instead of being memorized and forgotten.

Works offline

A single file that opens in any browser on your phone, tablet or computer. Study in your truck, at the parking lot, no internet needed.

Smart progress

Per-section and overall counters, training and exam modes, go back to previous questions, reset progress.

No surprises on test day

Three tests, exactly like the DMV gives them — General Knowledge, Air Brakes, Combination Vehicles. Same 80% federal passing score, same PASS/FAIL. The exam screen behaves like the real one too: skip a question, flag it to come back to, review everything before you submit.

Glossary + ELD logbook trainer

40 key trucking terms with instant search, plus an interactive RODS logbook trainer (duty status, Personal Conveyance, Yard Move).

Works in every state

The core CDL theory follows one national FMCSA standard, so the same material is on the test wherever you sit it. Pick your state and you get its official CDL manual and the agency that issues the license — all 50 states and DC — plus only what actually differs from the national standard: permit validity, third-party testing, extra requirements.

28 technical diagrams

Air Brakes and Pre-Trip Inspection drawn out — compressor, governor, S-cam brake, slack adjuster, spring brake chamber, glad hands, fifth wheel, landing gear, suspension, tires. Every numbered part is explained, so you can name what the examiner points at.

Hazard perception

25 photos from the driver's seat, 8 seconds to decide: Brake / Ease off / Nothing. Built on the Dutch CBR scheme — the habit of reading the road before it turns into an emergency.

In plain words, and one search box

Every section boiled down to about 10 simple sentences, plus search across the whole app — questions, explanations, summaries and glossary in one place.

A manual for every button

Open How to Use on the Home screen: 18 sections covering every screen and all 135 buttons, with what each one does. Tap a section to expand it. It opens without a purchase and works offline.

15 sections — everything on the test

General Knowledge 125
Air Brakes 57
Combination Vehicles 52
Road Signs 74
Pre-Trip Inspection 40
Hazard Awareness 44
Hours of Service & ELD 35
Basic Control Skills 29
On-Road Driving 30
Tanker 35
Doubles / Triples 44
HazMat 72
Passenger 44
School Bus 50
Bonus Road Signs 124

Plus two hands-on trainers that aren't question sets — a paper Daily Log Book and a real ELD simulator — and a trucking terms glossary.

Where to get it

📱 iPhone and iPad — App Store

An icon on your home screen, so studying fits into the gaps in the day: in the cab, waiting at the DMV, on a break. Also runs on Apple Silicon Macs. One purchase — new questions and features arrive free.

Download on theApp Store

🤖 Android — Google Play

Phones and tablets, fully offline once installed — the entire question bank travels with you, no signal needed. One purchase — every update from here on is free.

GET IT ONGoogle Play

💻 Windows — Microsoft Store

The whole app on a big screen. Best for sitting down at home and working through the long explanations, the terms glossary and the ELD logbook trainer in comfort. One purchase — future updates included, free.

Get it fromMicrosoft Store

FAQ

Do the questions match the real test?

They are based on the official CDL Manual (FMCSA) — the source the real exam is built from. The English wording is always shown.

Is it a subscription?

No. One purchase — yours forever, updates are free.

Will it work for my state?

Mostly, yes. The core CDL knowledge (FMCSA's Model CDL Manual) is the same nationwide, but some states add their own rules — always check your state's current CDL manual before the exam. The app covers all 50 states and DC: pick yours and you get a link to its official manual and to the agency that issues the CDL, plus only what differs from the national standard — permit validity, third-party testing, extra requirements. That information reflects the situation as of the app's release.

Are the signs real?

Yes — official MUTCD/FHWA artwork (the U.S. federal standard), the same drawings used on American road signs.

Why 855 and not more?

Every question is unique and based on the official FMCSA CDL Manual — we don't pad the bank with repetitive rephrasings just to inflate the count.

What if I can't figure out the app?

The Home screen has a How to Use section. It goes through every screen and every button — 135 of them — and says what each one does, with the buttons drawn exactly as they look in the app. It opens without a purchase and works offline.

🏫 For CDL schools — classroom licensing · coming soon →