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CDL · Study Guide

CDL Study Guide

Short lessons written for the CDL, each followed by practice questions on the same topic.

What is included

50 lessons in 8 sections: General Knowledge, Air Brakes, Combination Vehicles, Hazardous Materials, Tank Vehicles, Doubles and Triples, Passenger Transport, School Bus
Audio in English and Spanish for every lesson, with the section being read highlighted
Spanish text for every lesson
Check yourself questions with explanations in every lesson
992 flashcards for quick review
2,689 CDL practice questions with explanations

General Knowledge

18 lessons · 114 min

Licensing and Medical Requirements7 min readOpen lesson Legal Duties and Disqualifications6 min read Inspecting Before and During Trips7 min read Steering Backing and Gear Selection8 min read Scanning and Signaling Clearly6 min read Choosing Speed and Keeping Space8 min read Spotting Hazards and Avoiding Conflict6 min read Driving With Limited Visibility6 min read Handling Cold and Hot Weather6 min read Crossing Railroad Tracks Safely5 min read Controlling Speed on Steep Grades6 min read Reacting to Sudden Road Emergencies7 min read Preventing Skids and Using ABS6 min read Responding to Crashes and Fires6 min read Checking Cargo Before and En Route6 min read Distributing Cargo Weight Safely5 min read Securing Ordinary and Special Loads8 min read Recognizing Regulated Hazardous Cargo5 min read

Air Brakes

6 lessons · 37 min

Making and Storing Compressed Air5 min readOpen lesson Applying Service and Spring Brakes7 min read Understanding Separate Air Circuits6 min read Checking Brake Hardware and Adjustment6 min read Testing Air Pressure and Brake Response6 min read Braking Safely With Compressed Air7 min read

Combination Vehicles

6 lessons · 34 min

Controlling Articulated Rigs5 min readOpen lesson Managing Tractor and Trailer Air7 min read Using Antilock Brakes Across Units5 min read Connecting a Tractor and Semitrailer5 min read Separating a Tractor and Semitrailer6 min read Checking the Complete Connected Rig6 min read

Hazardous Materials

8 lessons · 49 min

Understanding Hazard Terms and Symbols6 min readOpen lesson Knowing Who Must Do What6 min read Identifying Hazard Classes and Materials4 min read Reading Papers Labels and Placards7 min read Loading Packaged Hazardous Cargo7 min read Handling Bulk Hazardous Shipments6 min read Following Hazardous Cargo Road Rules7 min read Responding to Hazardous Cargo Incidents6 min read

Tank Vehicles

3 lessons · 16 min

Inspecting Tanks and Transfer Equipment5 min readOpen lesson Controlling Liquid Movement6 min read Making Smooth Stops and Turns5 min read

Doubles and Triples

3 lessons · 18 min

Controlling Multiple Trailers5 min readOpen lesson Connecting and Separating Trailer Sets7 min read Inspecting Trailer Sets and Airflow6 min read

Passenger Transport

3 lessons · 18 min

Checking Buses Before and After Trips6 min readOpen lesson Boarding Passengers and Preparing to Leave5 min read Transporting Riders Safely on the Road7 min read

School Bus

3 lessons · 21 min

Seeing Around the Bus7 min readOpen lesson Managing Students at Stops and on Board7 min read Handling Critical Bus Situations7 min read

Study guide included with CDL plans

Every lesson in full, the audio, Check yourself questions and the full CDL practice bank in one account.

1 month~~$44.99~~ $22.49
3 months~~$131.99~~ $65.99
Lifetime~~$269.99~~ $134.99

One payment, no subscription.

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Sample lessons: Licensing and Medical Requirements · Making and Storing Compressed Air · Controlling Articulated Rigs · Understanding Hazard Terms and Symbols · Inspecting Tanks and Transfer Equipment · Controlling Multiple Trailers · Checking Buses Before and After Trips · Seeing Around the Bus

Original lessons written for CDL practice. Exam names are trademarks of their owners; tests.global is not affiliated with them.