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In Partnership with Skokie Public Library

FREE Illinois CDL General Knowledge Test 2018 | IL

If you want to acquire a Commercial Driver’s License from the State of Illinois, you’re going to have to pass a general knowledge test. This test covers all aspects of commercial driving, from basic care of your vehicle to road skills, from cargo loading to correct behavior in an emergency. You’re going to have to get a minimum of 80% on this test to obtain your CDL license. The questions below are taken directly from the 2018 Illinois CDL manual; each question has a hint to help you and a detailed explanation of the answer. Good luck!

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10 mistakes allowed to pass
Passing score required at the IL DMV: 80%
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More IL CDL Resources:

  1. IL CDL General Knowledge Test (you are here)
  2. IL CDL General Knowledge Test 2
  3. IL CDL General Knowledge Test 3
  4. IL CDL General Knowledge Test 4
  5. IL CDL General Knowledge Test 5
  6. IL CDL General Knowledge Test 6
  7. IL CDL General Knowledge Marathon
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  10. IL CDL HazMat Test 2
  11. IL CDL HazMat Test 3
  12. IL CDL HazMat Marathon
  13. IL CDL HazMat Exam Simulator
  14. IL CDL School Bus Test
  15. IL CDL School Bus Test 2
  16. IL CDL School Bus Test 3
  17. IL CDL School Bus Marathon
  1. IL CDL School Bus Exam Simulator
  2. IL CDL Passenger Vehicles Test
  3. IL CDL Passenger Vehicles Test 2
  4. IL CDL Passenger Vehicles Test 3
  5. IL CDL Passenger Vehicles Marathon
  6. IL CDL Passenger Vehicles Exam Simulator
  7. IL CDL Air Brakes Test
  8. IL CDL Air Brakes Test 2
  9. IL CDL Air Brakes Test 3
  10. IL CDL Air Brakes Test 4
  11. IL CDL Air Brakes Marathon
  12. IL CDL Air Brakes Exam Simulator
  13. IL CDL Combination Vehicles Test
  14. IL CDL Combination Vehicles Test 2
  15. IL CDL Combination Vehicles Test 3
  16. IL CDL Combination Vehicles Test 4
  17. IL CDL Combination Vehicles Marathon
  1. IL CDL Combination Vehicles Exam Simulator
  2. IL CDL Double/Triple Trailers Test
  3. IL CDL Double/Triple Trailers Test 2
  4. IL CDL Double/Triple Trailers Test 3
  5. IL CDL Double/Triple Trailers Marathon
  6. IL CDL Double/Triple Trailers Exam Simulator
  7. IL CDL Tanker Vehicles Test
  8. IL CDL Tanker Vehicles Test 2
  9. IL CDL Tanker Vehicles Test 3
  10. IL CDL Tanker Vehicles Marathon
  11. IL CDL Tanker Vehicles Exam Simulator
  12. IL CDL Pre-Trip Inspection Test
  13. IL CDL Pre-Trip Inspection Test 2
  14. IL CDL Pre-Trip Inspection Test 3
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