2025 Iowa Cdl Air Brakes - Test 2
The following questions are from real Iowa 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 you are driving and the ABS light comes on, it means that the ABS:
Cannot work due to weather conditions.
Has just been activated.
Is not working properly.
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Key Data
Number of Tests: 18
Number of Question: 25
Passing Score: 20
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