South Carolina DMV CDL General Knowledge Quick Practice Test 1 For 2024

CDL Class A, B or C. Complete CDL driver training course. All the questions in this test are from the official DMV written exam. You can use our free online tests to evaluate how likely you are to pass the official DMV test. Or you can just cut to the chase and increase your chances of passing by upgrading to Premium Membership and unlock official DMV tests. In addition, you will also receive a master cheat sheet which contains all your state’s DMV questions and answers. Premium membership also unlocks a smart tracker which keeps an inventory of all incorrectly answered questions for easy, fast and effective revision. Practice with our free tests or hit Upgrade button below for premium access and increase your chances of passing your DMV written exam.

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Quick Facts:

Number of Questions – 20

Passing Percentage – 80%

Test Type – Free Test

1. Air tank drains should:

2. While still below the legal limit, a driver operating a CMV with a detectable amount of alcohol in their system will:

3. If a vehicle gets stuck on a railroad track, the driver should:

4. To prevent your vehicle from rolling backward when beginning to move, you can:

5. If involved in a crash, basic procedures should include all of the following, except:

6. Header boards:

7. Retreaded tires:

8. When traveling down a steep grade, you switch into a lower gear: