2025 Kentucky Cdl Combination - Test 1
The following questions are from real Kentucky 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. What is the tractor protection valve?
A valve that keeps air in the brake system should a bad leak occur
A valve that prevents the trailer from being accidentally released
A valve that prevents the vehicle from going too fast
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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