Using the trailer hand valve while driving: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Illinois Do you currently have motorcycle insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance. Click here to compare rates from our insurance partner. Question Using the trailer hand valve while driving: Answers Will help you turn safely. Will stop your trailer safely. Can cause a skid. Is impossible. Explanation Never use the trailer hand valve while operating your vehicle. Using the trailer hand valve while driving can cause your trailer to skid. This questions appears in the following tests: Connecticut Combination District Of Columbia Combination Georgia Double Georgia Combination Kansas Combination Massachusetts Combination North Carolina Combination North Dakota Tank North Dakota Combination South Dakota Combination Texas Combination Wisconsin Combination Wyoming Combination