Built to help you pass. First try.
The practice app for the US CDL knowledge tests. Questions for your state, mock exams, and plain-words explanations. Free on Google Play.
Ten minutes a day.
Short practice sets built from the CDL manual your state's test is based on. 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 you read why in plain words, with the section of the CDL manual it comes from. No guessing, no digging through the handbook 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. Built to help you pass 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 ten-question sets that fit a fuel stop. It works offline at the truck stop and covers all 50 states and DC.
Everything you need to pass
Questions for your state
DMV-style questions written from the CDL manual your state's test is based on.
Mock exams with the real pass mark
Full-length tests with the actual question counts and the 80% line.
Every wrong answer explained
A plain-words explanation and the manual section, right after you answer.
Ten questions at a time
A practice set fits a fuel stop. Review your mistakes in one tap.
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.
- Short sets
- Ten questions, done before the pump clicks off.
Every endorsement. One app.
From your first General Knowledge test to Hazmat and Doubles/Triples. Tap a sign for free sample questions.
On Google Play now
Free practice sets every day, on any Android phone. Pro unlocks unlimited questions and every mock exam.
Get it on Google PlayOn an iPhone?
PassRig is Android only for now. Leave your email and we will tell you when the iPhone version is ready.
Questions
Is it free?
Practice sets are free every day. Pro unlocks unlimited questions and the full-length mock exams for all eight tests, with a 7-day free trial on the monthly plan. Prices are shown in Google Play before you buy.
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 only for now. An iPhone version comes later; leave your email at the bottom of the home page 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.