CDL Prep

Contains ads
3.72K reviews
Content rating
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About this app

CDL Prep is the best way to prepare for the Commercial Drivers License General Knowledge, and various endorsement exams. CDL Prep contains questions on the following topics: General Commercial, Air Brakes, Combinations, Hazmat, Passenger, Tanks, School Bus, and Doubles/Triples.

1. Over 500 questions to practice with.

2. Exam Mode - 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 questions on endorsement topics. At the end, review your score and any incorrect answers.

3. Practice Mode - Answer questions and receive instant feedback if you answered incorrectly.

4. Answer Randomization - Answers to questions will not always be in the same position.

5. Performance tracking - Review your performance on every question. Red = You have an average score less than 70%, Orange = You have an average score between 70-89%, Green = You have an average score of 90% and above.

Please send any feedback or request to: Thank you and good luck on your exams!
Updated on
Sep 23, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted
3.72K reviews
Tim Ryan (Foolsbal143)
July 14, 2020
Great app! Really helps and it's not complicated to figure out. But the lending tree ads are making me lose my mind. You can't exit out of it and end up never finding your score. I don't mind ads... they're necessary but if I have to close the app every time lending tree comes up I might as well get a different app
71 people found this review helpful
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Jonathan Harp
May 19, 2021
The ui is a bit clunky but it out did my expectations having all the manuals in the app and all of the endorsements. The questions were like word for word lol. I passed container ,general knowledge, airbrakes, doubles&triples, and tanker first try. But I've had experience as a diesel mechanic so that helped a little. Thank you for the app. Edit: I will add you definitely should study the manual for doubles and triples. I barely passed that one.
49 people found this review helpful
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Humble without Weakness
December 2, 2022
Ads, who cares, it's free. Passed my CLP Class A NC. The questions are on the test, but not all. And, the wording on some of the questions or answers were not 100% accurate. Use this app has a supplement to get into testing mode if haven't taken a test for sometime. If you cannot answer the questions in the manual, then your not prepared.
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What's new

Bug fixes and grammatical improvements.