Pass your CDL. First try.
The practice app for the US CDL knowledge tests. Questions for your state, mock exams, and plain-words explanations. Launching soon on Google Play.
Ten minutes a day.
Short practice sets built from your state's handbook. Mock exams use the real question counts and the real 80% pass mark, so test day holds no surprises.
Every miss, explained.
Get one wrong and the AI tells you why in plain words. Switch to voice quiz and run through questions hands-free while you sit at the station.
Test day. Green light.
PassRig tracks what you keep missing and brings it back until it sticks. Walk into the DMV knowing the answers, not hoping for them.
Free CDL practice test. Pass your CDL first try.
PassRig is a free CDL practice test app for every US commercial driver's licence knowledge test. Practice the general knowledge test, the air brakes test and every endorsement with over 480 questions written from the FMCSA CDL manual. Mock exams use the real question counts and the real 80% pass mark, and every wrong answer gets a plain-words explanation. Pick your state on the CDL practice test hub and start with a free sample test today.
The app is built for the cab: big buttons, a dark screen and a voice quiz that runs hands-free. It works offline at the truck stop and covers all 50 states and DC.
Everything you need to pass
Questions for your state
Real DMV-style questions matched to your state's handbook.
Mock exams with the real pass mark
Full-length tests with the actual question counts and the 80% line.
Every wrong answer explained
An AI explains each miss in plain words, right after you answer.
Voice quiz, hands free
Ask and answer out loud. Run it in the cab with the screen off.
Works offline
No signal at the truck stop? Keep studying anyway.
Tracks what you keep missing
Weak spots come back until they stick.
Three steps to your CDL
Pick your state and tests
Practice 10 minutes a day
Pass on test day
Built for the cab
- Big buttons
- Tap it with gloves on.
- Dark screen
- Easy on the eyes at night.
- Voice mode
- Ask and answer out loud, hands on the wheel.
Every endorsement. One app.
From your first General Knowledge test to Hazmat and Doubles/Triples. Tap a sign for free sample questions.
Get in before launch
Launching soon on Google Play. Leave your email and we will tell you first.
Questions
Is it free?
The first practice sets are free. Pro unlocks unlimited questions and AI explanations. Prices to be announced.
Which states?
All 50 states and DC. Pick your state once and PassRig loads the questions that match your state's handbook.
Is there an iPhone version?
Android first. An iPhone version comes later. Leave your email and we will tell you when it lands.
How many questions are on the CDL test?
The general knowledge test has 50 questions. Air brakes has 25, hazmat has 30, and combination vehicles, tanker, doubles/triples, passenger and school bus have 20 each. Every one needs 80% to pass.