Prepare for theory tests
General Knowledge, Air Brakes, Combination and other required exams
Start preparationFrequently Asked Questions
In which states can I take exams in Russian?
Exams in Russian are available in Washington, Oregon, New York, New Jersey, Florida and some other states.
How many questions are on the exam?
General Knowledge - 50 questions, Air Brakes - 25 questions, Combination - 20 questions.
How many mistakes can I make?
You need to answer 80% of questions correctly to pass.
Can I take the exam without knowing English?
In some states, exams are available in other languages, including Russian.
How to get access to all tests? Is the app paid?
The basic version is free. Full access to all tests and features is available by subscription.
How many questions are in the app and what's the difference between 'Express' and 'Full'?
The app has over 1200 questions. Express includes basic tests, Full - all tests and endorsements.
Did you really add all possible questions?
We regularly update the question bank based on official DMV sources from each state.
How long does it take to prepare for the CDL exam?
Most students need 2-4 weeks of regular practice to prepare for the written CDL exam. Using our app with daily practice sessions of 30-60 minutes significantly increases your chances of passing on the first attempt.
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