2025 Oregon Cdl HazMat - Test 1
The following questions are from real Oregon 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. Regulations require hazardous materials employees to be trained and tested how often?
Once every year
Once every three years
Once every five years
Once every 10 years
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Key Data
Number of Tests: 18
Number of Question: 30
Passing Score: 24
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