Doubles/Triples Endorsement Study Guide

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Practice Tests Included!

Get prepared for your Doubles/Triples Endorsement exam today!


Are you looking to expand your driving career and boost your earning potential with a CDL Double/Triple Trailer Endorsement? Prepare for your exam today with our comprehensive study guide! This course is packed with essential information on driving longer combination vehicles (LCV), understanding how to transport goods more effectively across long distances, and following critical safety protocols that every LCV driver must know.

With easy-to-understand lessons and practice tests, you’ll be ready to pass your exam and hit the road with confidence. Perfect for new LCV drivers or those looking to add a Double/Triple Trailer Endorsement to their license!

Course Includes:


  • In-Depth Study Materials
    Access detailed guides and resources covering every aspect of doubles/triples operations and safety.

  • Interactive Practice Exams
    Test your knowledge with engaging, exam-style practice tests designed to help you succeed.

  • Printable Practice Exams
    Download and print practice exams to study offline at your own pace.

  • Printable Answer Key
    Review your answers with a fully printable answer key to track your progress and improve your performance.


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Training Objectives:

By the end of this training course, you will be able to:

  • Proper techniques for safely connecting and disconnecting multiple trailers
  • Managing longer vehicle lengths and preventing trailer sway
  • Understanding the braking systems used on doubles and triples
  • How to load trailers to ensure even weight distribution
  • Maintaining control of a longer combination vehicle on highways and in difficult driving conditions