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In Partnership with Cook Memorial Library

FREE OR CDL Double/Triple Trailers Practice Test 2018

This CDL practice test is a great place to start if you’re after the OR Double/Triple Trailers endorsement. Each of the 20 questions is based on the official 2018 CDL manual. The test is designed to prepare you for the Double/Triple Trailers portion of your 2018 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 OR DMV: 80%
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More OR CDL Resources:

  1. OR CDL General Knowledge Test
  2. OR CDL General Knowledge Test 2
  3. OR CDL General Knowledge Test 3
  4. OR CDL General Knowledge Test 4
  5. OR CDL General Knowledge Test 5
  6. OR CDL General Knowledge Test 6
  7. OR CDL General Knowledge Marathon
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  10. OR CDL HazMat Test 2
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  16. OR CDL School Bus Test 3
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  2. OR CDL Passenger Vehicles Test
  3. OR CDL Passenger Vehicles Test 2
  4. OR CDL Passenger Vehicles Test 3
  5. OR CDL Passenger Vehicles Marathon
  6. OR CDL Passenger Vehicles Test: Exam Mode
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  8. OR CDL Air Brakes Test 2
  9. OR CDL Air Brakes Test 3
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  15. OR CDL Combination Vehicles Test 3
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  3. OR CDL Double/Triple Trailers Test 2
  4. OR CDL Double/Triple Trailers Test 3
  5. OR CDL Double/Triple Trailers Marathon
  6. OR CDL Double/Triple Trailers Test: Exam Mode
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  8. OR CDL Tanker Vehicles Test 2
  9. OR CDL Tanker Vehicles Test 3
  10. OR CDL Tanker Vehicles Marathon
  11. OR CDL Tanker Vehicles Test: Exam Mode
  12. OR CDL Pre-Trip Inspection Test
  13. OR CDL Pre-Trip Inspection Test 2
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