Before entering a curve, you should: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in South dakota 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 Before entering a curve, you should: Answers Not use the mirrors. Speed up. Downshift. Explanation It is important that the driver of a CMV always downshifts before entering a curve. This questions appears in the following tests: Arizona Class A Knowledge Test Iowa Class B Knowledge Test Kentucky Double Louisiana Tank Mississippi Class A Knowledge Test Nebraska Passenger South Dakota Passenger