01General Knowledge: Learn to Make Safe Driving Decisions
Build a study routine around hazard recognition, space, vehicle condition and the decisions you must explain before driving a commercial vehicle.
- 6 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →02Air Brakes: Understand the System Before Memorizing the Test
Learn what pressure, warnings and brake checks tell you, then use your state manual and the vehicle-specific procedure for supervised practice.
- 6 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →03Combination Vehicles: Coupling, Turning and Backing With a Plan
Study the connection between tractor and trailer, then practice a repeatable method for checking the connection and controlling the full vehicle path.
- 6 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →04Pre-Trip Inspection: A Repeatable Learning Method
Learn to identify a component, inspect its condition and explain its safety purpose. Use the exact inspection procedure accepted by your state and testing provider.
- 6 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →05HazMat: Build a Study Map Before Applying
Separate endorsement eligibility, required training, security screening and cargo-safety learning so you can verify each part with the responsible agency.
- 3 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →06ELDT Theory: Turn Module Study Into a Learning Plan
Understand the difference between free theory practice and required entry-level driver training, then use a review log to prepare for the next step.
- 3 lesson sections
- Decision scenario and common mistakes
- Official-source links and printable worksheet
Read the full lesson →Use the guides as a learning path
Start with General Knowledge, add the subjects for your vehicle and endorsements, then use Pre-Trip to organize supervised inspection practice. Free study tools are independent practice; they do not satisfy official ELDT or licensing requirements.
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