2025 Colorado Cdl Air Brakes - Test 1
The following questions are from real Colorado 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. While driving, spring brakes are generally held in place by:
Air pressure.
Chocks.
Foundation brakes.
Sturdy ties.
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Key Data
Number of Tests: 18
Number of Question: 25
Passing Score: 20
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