As a beginner-level DMV practice permit test, this Illinois sign test quiz features just 20 questions which will not change no matter how many times you use it. To make sure you are ready for anything you could be asked, you will need to read the entire road signs section of the rules of the road book, in addition to completing our 2020 DMV practice test Illinois quiz. When organizing your study plan for the DMV permit test, keep in mind that whether you get 10, 12 or 15 questions on the Illinois permit test signs exam, there are hundreds of different road signs in the DMV database which could be chosen to fill one of the question slots. Our Illinois rules of the road, road signs and traffic signals DMV practice test features just 20 multiple-choice questions, so as not to be overwhelming for newer learners. The real DMV test features 35 Illinois driving test questions and answers and asks that 28 correct answers are provided for the participating applicant to be awarded a permit.The safest tactic, however, is to aim for a full score on each DMV practice test. It means you should answer at least 28 out of 35 questions correctly to pass both this practice test and the real DMV test. The passing score in Illinois is 80 percent. Illinois Driver's License Practice Test In Spanish.