2025 Mississippi Cdl Passenger - Test 1
The following questions are from real Mississippi 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. How is water and compressor oil removed from the bottom of an air storage tank?
The water and oil are siphoned out of the tank.
A drain valve is opened to remove the water and oil from the tank.
The water and oil are removed automatically as the brakes are used.
A sponge is used to soak up the water and oil.
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Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
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