2025 Vermont Cdl Combination - Test 2
The following questions are from real Vermont 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 tractor protection valve:
Ensures that oil adequately lubricates the engine.
Protects the tractor from exceeding a set speed.
Keeps air in the truck braking system if the trailer develops a leak.
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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