2025 Iowa Cdl HazMat - 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 loading compressed gas, the liquid discharge valves should be:
Closed.
Removed.
Opened.
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Key Data
Number of Tests: 18
Number of Question: 30
Passing Score: 24
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