2025 Utah Cdl Tank - Test 1
The following questions are from real Utah 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. A trolley valve:
Should be used while driving.
Should only be used to test trailer brakes.
Should be used when parking uphill.
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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