2025 Idaho Cdl Double - Test 1
The following questions are from real Idaho 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. Alcohol evaporators are:
Illegal.
Used to add alcohol to braking systems to prevent items from freezing.
Only allowed on vehicles carrying hazardous materials.
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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