SD CDL General Knowledge Marathon
Original questions by our team Based on 2026 SD CDL Handbook
Ready for something a little different? This South Dakota CDL General Knowledge Marathon is a new practice test that contains all 693 questions from our database for this SD endorsement. If you select a wrong answer, we’ll remember that question and will display it to you again at the end of the exam until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. Delivers some serious studying power! Do your best to complete this mega test!