If you want to avoid multiple trips, you also need to be ready with all the qualifying paperwork. Get just 10 wrong and score below an 80% and you are looking at another trip to the DMV on another day. The exam can be tricky and you only have an hour to answer the 50 questions. How much do you know about escape ramps or how to assess the proper following distance behind another vehicle? Whatever you think you already know, you’ll want to check your knowledge against the official California Commercial Driver’s Manual and take some practice tests to hone your answers. Before heading to the California DMV to take the General Knowledge exam to receive your Commercial Driver’s License there are a few things you’ll want to consider.
