What it is

CDL Test Prep helps truck and bus drivers pass the commercial driver's license knowledge tests. Every question is written from the CDL manual, and after each answer you see the right answer, a short explanation and the manual section to reread.

What is inside

CDL knowledge tests	General Knowledge, Air Brakes, Combination Vehicles, Hazardous Materials, Tank Vehicles, Doubles/Triples, Passenger and School Bus
Practice mode	Explanation and manual section right after each answer
Exam mode	A full set scored against the 80% passing mark of 49 CFR 383.135, then a review of every missed question
Study guides	How to study from the manual, and which tests you need for your license class and endorsements

Screens

Exam mode score and review of missed questions

Free, with ads

The app is free and paid for by advertising. A small banner sits at the bottom of the screen, below the page, so it never covers a question or a button. A full-screen ad can appear between questions, at most once every few minutes, and never when the app opens.

Authorized digital sellers

Advertising in CDL Test Prep is served through Google AdMob under publisher ID pub-3709043100488694. Our app-ads.txt file authorises that publisher ID and is served from the root of this domain:

google.com, pub-3709043100488694, DIRECT, f08c47fec0942fa0

View app-ads.txt

Disclaimer

Independent study aid. Not affiliated with, endorsed by, or connected to any DMV, state licensing agency or the FMCSA. Real test questions are not public: we write our own questions from the CDL manual. Always read your own state's CDL manual, which is the final word if anything differs. Studying with this app does not guarantee any test result.

CDL Test Prep: Practice Tests