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CDL Doubles and Triples Endorsement T Practice Test

Pass the CDL Doubles & Triples Endorsement Test on your very first try! Take our FREE Practice Test for the ultimate test preparation. Our practice tests have 25 multiple choice questions straight from the handbook and give immediate feedback.
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Double/Triple Trailers Endorsement Test: What You Need to Know

Although it is illegal in some states to operate a triple trailer, all states offer the double/triple trailer endorsement to enable to you to operate these vehicles when you need to. To receive the endorsement, all you need to do is pass the test. Here's what you need to know about the CDL Double and Triple Trailer Endorsement Test.

What's On the Test

Below is the information that you should expect to see on the T-endorsement test. Many doubles and triples practice test will cover this information also, so practice tests are worth your time. To earn the T-endorsement, you need to know:

  • Handling and stability characteristics including off-tracking, response to steering, sensory feedback, braking, oscillatory sway, rollover in steady turns, and yaw stability in steady turns
  • The problems associated with pulling multiple trailers
  • Proper placement of the heaviest trailer
  • Coupling and uncoupling the double/triple trailer
  • Inspecting the air brakes, and other operating practices

Who Needs the Test

The double/triples trailer endorsement is primarily for truck drivers or those looking for work with trucking and transportation companies. Those looking to add the T-endorsement to their current commercial driver's license are advised to prepare for the test with doubles and triples practice tests. Practice tests will ensure that you earn the endorsement on your first try and position yourself for open positions or better paying positions.

What You Need for the Test

Before you start on any doubles and triples practice tests, you need to have your commercial driver's license first. Some states allow you to get both the commercial license and the T-endorsement at the same time, but most do not. Therefore, it's best to get your commercial license first, and then go for the double/triples trailer endorsement test (or check to see if you even need the endorsement).