Illinois General Knowledge Practice Test 3
25 questions covering general knowledge content, drawn from the FMCSA-aligned CDL question pool and the Illinois Commercial Driver's License Study Guide.
What this test covers
The General Knowledge test has 50 multiple-choice questions in most states (some states use a slightly different question count). You need an 80% score to pass. Topics include safe driving practices, transporting cargo safely, vehicle inspection procedures, communication with other drivers, speed and space management, hazard awareness, distracted-driving rules, fatigue and hours of service basics, accident procedures, and the consequences of alcohol and controlled substance use. The test draws from the General Knowledge section of your state's CDL manual.
Sample General Knowledge questions
Preview of what is on Practice Test 3. Unlock with Pro to take the full 25-question test.
Before uncoupling a trailer, you should:
The longer the combination vehicle, the more the trailer will off-track. What should a driver do when making a right turn with a long trailer?
Under federal hours-of-service rules, how many consecutive hours of driving are allowed after 10 consecutive hours off duty?