Illinois CDL: additional practice sets
282 additional questions across 19 topics. Start a short set, read each explanation and revisit your saved mistakes.
Additional short practice sets
Each numbered set has up to 20 questions. These sets cover this additional question set once, without repeating questions to fill a short set. Published sets keep their questions as new topics are added.
Quick reviews
One focused recap at a time. These short sets keep their original questions and saved attempts.
Prefer a longer session? Open mixed practice →Choose a topic
Vehicle checks and road skills
33 questions · 2 short sets
Conditions and emergency decisions
29 questions · 2 short sets
Cargo, capacity and load behavior
13 questions · 1 short set
Air-system operation and checks
23 questions · 2 short sets
Coupling and trailer connections
20 questions · 1 short set
Doubles and converter-dolly care
5 questions · 1 short set
Tank equipment and inspection
6 questions · 1 short set
Passenger service and bus equipment
13 questions · 1 short set
School-bus observation and evacuation
18 questions · 1 short set
Hazard identification and safe response
8 questions · 1 short set
Practical equipment checks and maneuvers
17 questions · 1 short set
Roadside warnings and operating decisions
9 questions · 1 short set
Cargo inspections, tiedowns and load limits
20 questions · 1 short set
Brake equipment and protection requirements
7 questions · 1 short set
Federal tank-vehicle definitions
4 questions · 1 short set
Vehicle-specific inspection details
7 questions · 1 short set
Hazmat training, papers and response information
18 questions · 1 short set
Hazmat placard arrangements and exceptions
10 questions · 1 short set
Hazmat loading, attendance and incident response
22 questions · 2 short sets