CDL Prep Test 2025 | EZ Prep 4+

Study anywhere, anytime, offline, or even in the bath! Take EZ Prep’s CDL Study App wherever you want and ace your exam with confidence.

With our extensive library of practice questions and quizzes, we break down topics into digestible categories so you can focus on what you need to.

What sets EZ Prep apart from other study apps, like CoCo or the other outdated CDL apps? It was written and created by licensed drivers. Unlike other apps, it creates personalized learning plans with dynamic questions that get progressively harder based on your preferences and goals.

Don’t be surprised on test day! We know that the exam is constantly evolving, which is why we're committed to providing you with the most accurate and relevant study materials available. Need to simulate an exam environment and remove test day anxiety? Use our Exam Simulator to practice your timing and get a feel for the exam.

Get started for free!

We provided a limited free version so you can get a feel for the app before deciding to upgrade. Subscribe to premium and unlock Bookmarks, Missed Questions, and the Exam Simulator.

Feel confident and study the categories and topics you want!

DRIVING SAFELY
• Vehicle Inspection
• Basic Control of Your Vehicle
• Shifting Gears
• Seeing
• Communicating
• Controlling Your Speed
• Managing Space
• Seeing Hazards
• Distracted Driving
• Aggressive Drivers/Road Rage
• Driving at Night
• Driving in Fog
• Driving in Winter
• Driving in Very Hot Weather
• Railroad-Highway Crossings
• Mountain Driving
• Driving Emergencies
• Anti-lock Braking Systems (ABS)
• Skid Control and Recovery
• Accident Procedures
• Fires
• Alcohol, Other Drugs, and Driving
• Hazardous Materials Rules for All
• Commercial Drivers



TRANSPORTING CARGO SAFELY

• Inspecting Cargo
• Cargo Weight and Balance
• Securing Cargo
• Cargo Needing Special Attention



TRANSPORTING PASSENGERS SAFELY
• Vehicle Inspection before transporting passengers
• Loading and Trip Start with transporting passengers
• On the Road transporting passengers
• After-Trip Vehicle Inspection with transporting passengers
• Prohibited Practices with transporting passengers
• Use of Brake-Door Interlocks with transporting passengers




AIR BRAKES
• Parts of an Air Brake System
• Dual Air Brake
• Inspecting Air Brake Systems
• Using Air Brakes



COMBINATION VEHICLES
• Driving Combination Vehicles Safely
• Combination Vehicle Air Brakes
• Combination vehicles Anti-lock Brake Systems
• Coupling and Uncoupling combination vehicles
• Inspecting a Combination Vehicle



DOUBLES AND TRIPLES
• Pulling Double/Triple Trailers
• Coupling and Uncoupling doubles and triples
• Inspecting Doubles and Triples
• Doubles/Triples Air Brake Check



TANK VEHICLES
• Inspecting Tank Vehicles
• Driving Tank Vehicles
• Safe Driving Rules for tank vehicles



HAZARDOUS MATERIALS
• Intent of the Regulations for hazardous materials
• What does what with Hazardous Materials Transportation
• Communication Rules for hazardous materials
• Loading and Unloading hazardous materials
• Bulk Packaging Marking, Loading, and Unloading for hazardous materials
• Hazardous Materials
• Driving and Parking Rules
• Hazardous Materials
• Emergencies



SCHOOL BUSES
• Danger Zones and Use of Mirrors for school buses
• Loading and Unloading school buses
• Emergency Exit and Evacuation for school buses
• Railroad-Highway Grade Crossings for school buses
• Student Management for school buses
• Anti-lock Braking Systems for school buses
• Special Safety Considerations for school buses



VEHICLE INSPECTION
• Internal Vehicle Inspection
• External Vehicle Inspection
• School Bus vehicle inspection
• Trailer vehicle inspection
• Coach and Transit Bus vehicle inspection

Any questions, please contact us at support@eztestprep.com
Terms of Use: https://www.eztestprep.com/terms-of-use
Privacy Policy: https://www.eztestprep.com/privacy-policy