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In Partnership with Williston Community Library

FREE ND CDL Double/Triple Trailers Practice Test 2019

This CDL practice test is a great place to start if you’re after the ND Double/Triple Trailers endorsement. Each of the 20 questions is based on the official 2019 CDL manual. The test is designed to prepare you for the Double/Triple Trailers portion of your 2019 Commercial Driver’s License exam. There are several answer options, but only one of them is correct. Every time you answer a question, you’ll get immediate feedback with a detailed explanation, so you won’t need to wait until the end of the test to know the correct answers.

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4 mistakes allowed to pass
Passing score required at the ND DOT: 80%
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