Illinois CDL Mock Exam

50 questions, matching the real Illinois SOS exam's length and 80% passing score — as close to test day as a practice run gets.

Topics covered: accident procedures, air brakes, backing parking, basic control, cargo securement, combination vehicles basics, drugs alcohol cdl, fire safety, general driving knowledge, hazmat awareness, hours of service, medical requirements, out of service, railroad crossings, speed space management, vehicle inspection, vehicle systems.