2025 Washington Cdl Tank - Test 1
The following questions are from real Washington CDL practice tests. After selecting the answer, you can see the explanation. After confirming, click "Next" to jump to the next question.
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1. The trailer hand valve should be used:
To test the trailer brakes.
To check the connection between the trailer and tractor.
To accelerate.
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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