2025 Iowa Cdl Class B Knowledge 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. When you must travel down a hill, when should you switch into a lower gear?
As you begin to move downward
As you go downhill and pick up speed
Before you start going downhill
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Key Data
Number of Tests: 18
Number of Question: 50
Passing Score: 40
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