2025 Maine Cdl Air Brakes - Test 1
The following questions are from real Maine 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. If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
55 and 75 psi.
80 and 95 psi.
65 and 100 psi.
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Key Data
Number of Tests: 18
Number of Question: 25
Passing Score: 20
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