Illinois CDL Combination Vehicles Practice Test (IL) 2021

A new Illinois DMV CDL practice test for the 2021 combination test to take you one step closer to nailing the exam this year!

  • 20 Questions
  • 80% Passing Score
  • 4 Mistakes Allowed
92% of students found this test helpful!
Rated 4.6 out of 5 by 15 drivers

Illinois CDL Test Facts

  • Questions: 50
  • Correct answers to pass: 40
  • Passing score: 80%
  • Test locations: Secretary of State (SOS) Offices
  • Test languages: English, Spanish
  • Based upon: Illinois CDL Book
Improve your chances of passing the test by reading the official Illinois drivers manual Drivers Manual

If your dream is to start a career driving some of the largest and heaviest commercial vehicles on the road, passing the Illinois CDL combination test is a must. Driving combination vehicles such as livestock transportation trucks, tank-vehicles and double or triple trailer vehicles will require a Class A commercial drivers license. The most difficult of the three commercial drivers license classes to obtain, Class A is associated with several types of mandatory SOS written test, of which the CDL combination test for Illinois drivers is one. The Illinois CDL combination practice test which you can access from this page has been designed to help you prepare for this challenging assessment in the shortest possible time!

Our Illinois CDL practice test for Combination Vehicle endorsement applicants is not a one-stop study solution; you will also need a copy of the 2021 permit test study guide which can be obtained as a free PDF download from the DMV website or here on As well as containing all the information needed to pass the Illinois CDL general knowledge test 2021 exam, the permit book includes a dedicated section for the Combination Vehicles permit test. Reading this chapter will acquaint you with essential combination vehicle operation theory, such as breaking distances, lane changing, crossing railways, parking rules and roll-over prevention. Having studied this information, you can use our Illinois combination CDL practice test to get some experience applying your knowledge to genuine DMV test questions!

As we mentioned above, there are several Illinois DMV written test 2021 exams you will need to pass before you can start learning to drive a combination vehicle. Of all the CDL practice tests we offer on, this CDL combination practice test for Illinois learners is not the first one you will need! Before sitting any endorsement exams, all commercial driving license applicants must pass the 50-question CDL general knowledge exam to ensure their basic road and vehicle operation knowledge is sufficient. Our CDL general knowledge practice test for Illinois students can help you get ready for this extensive DMV permit test. As soon as you have secured a passing grade of 80 percent or higher, you can return to this Illinois drivers license practice test for aspiring combination vehicle drivers and get your endorsement exam preparation underway.

Driving any Class A combination vehicle will also require an Air Brakes endorsement, as all medium and heavy-weight vehicles must be equipped with this breaking system by law. When you are done with the combination vehicles endorsement, you can start studying for the air brakes exam using our Class B and Class A practice test for Illinois Air Brakes endorsement applicants. The study material for this endorsement, and every other available to commercial drivers in the state of Illinois, can be found in the CDL permit test study guide.
Wherever you currently stand on the road to becoming a qualified Class A combination vehicle driver, there is a DMV learners permit practice test for Illinois students here on that can help you to fine-tune your knowledge. Working on realistic permit test questions is the best way to ensure you understand all the study material associated with the test you are taking, while retaining it for long-enough to get through the exam. This Illinois CDL Class A combination practice test is built around an impressive selection of real-life combination permit test questions and contains some helpful guidance tools that can boost your knowledge. No better accompaniment for the CDL drivers manual exists anywhere online or in the stores!