CDL Practice Written Test

Study for the CDL written exam

CDL Practice Written Test is an education app for people preparing for a commercial driver’s license knowledge test. It suits new drivers working toward a Class A or Class B CDL, as well as current drivers studying for an additional endorsement. Practice material is organized around the subjects commonly covered in CDL written testing.

Topics and test areas

The app includes practice questions for general CDL knowledge, air brakes, and combination vehicles. It also covers several endorsement areas, including passenger, school bus, hazardous materials, tank vehicles, and double or triple trailers. State-focused practice is available for CDL applicants preparing for requirements in different parts of the United States.

• Class A and Class B general knowledge
• Air brakes and combination vehicles
• Bus and passenger endorsements
• Hazardous materials and tank vehicles
• Double and triple trailers
• State-specific CDL practice tests

Useful for focused revision

Rather than serving as a driving simulator, the app is built around written-test preparation. You can use the question sets to review one subject at a time or check your knowledge across several CDL areas. That makes it suitable for short study sessions before working through the official testing requirements for your state.

App details

Developer: DMV Written Test
Category: Education
Rating: 4.65 out of 5 from 3,774 ratings
Installs: 100,000+

Its audience is broad: first-time commercial driver applicants, drivers adding endorsements, and anyone who wants extra practice with CDL knowledge questions before sitting a written exam.