TruckTrailerPro CDL School is based in Ohio, so we will answer this question for Ohio. However, most of the other states are the same. Permit exam for CDL-A drivers has 3 different exams. You can see the details below;
General Knowledge – 50 Questions – 40 Correct Answers
Combination Vehicles – 25 Questions – 20 Correct Answers
Air Brakes – 25 Questions – 20 Correct Answers