Quick note: This test is timed! You have N MINUTES to complete the test! All unanswered questions will be marked as incorrect. Good luck and godspeed!

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If you are planning to take your CDL Illinois SOS permit test so you can make a career out of driving some of the heaviest and most imposing vehicles out there – you might just be heading for a Class A permit test in Illinois. Scoring a passing grade on the Illinois Class A test is the first step towards securing your Class A drivers license; you will then be able to take your extra endorsement permit tests and your practical driving exam. Holding a Class A license will qualify you to drive any combination vehicles with a gross combination weight rating of over 26,001 lbs. which can include a towable trailer of over 10,000 lbs. Pretty impressive!

Depending on which additional endorsement DMV written test for 2018 you decide to take, you could end up driving double or triple trailer vehicles, tank vehicles, livestock transportation vehicles or flatbeds. As the Class A CDL is considered the most advanced type of drivers license, you will also be allowed to drive any Class B or Class C vehicle, providing you hold the necessary endorsements for that vehicle, without having to take another Class B or Class C knowledge test in Illinois. This is because the general knowledge DMV test in Illinois is no different for different classes of driving permit. That’s right – the Illinois DMV test is the same for everybody, only the endorsements and practical driving tests set them apart. The simplicity of this system means you can use the same, good-quality DMV CDL practice test to revise for your exam, no matter which class of CDL learners permit you apply for.

We may be biased, but we recommend you use this 2018 Illinois CDL practice test. It’s totally free and there are few other free CDL practice tests on the internet which come close to it in terms of quality - or paid CDL practice test for that matter! This DMV practice test 2018 Illinois quiz marries real, past DMV test questions with new questions designed by commercial drivers license specialists. Every question you’ll come across on this practice permit test is based on information in the Illinois DMV handbook and could easily appear on the actual DMV written test 2018. If you want authenticity in a Class A license Illinois practice test quiz, you’ve got it.

When you’re done practicing for your CDL general knowledge test, you might want to try out some of the other Class A drivers license practice tests on the website. We have a Class A CDL practice test for the Combination Vehicle endorsement exam, which is compulsory for Class A drivers; we also have the practice test for an Air Brake endorsement, which is compulsory for both Class A and Class B drivers. Aside from these two types of CDL practice test, we also have other kinds of DMV permit practice test which relate to the other optional endorsements. These include the Tank endorsement which allows you drive vehicles which carry liquids; the Passenger endorsement which allows you to carry passengers and the HazMat endorsement which allows you to carry hazardous materials. You won’t find any information on these endorsements in this Illinois CDL general knowledge practice test, with the exception of some general material relating to hazardous materials that every driver would need to know.

Get your brain in gear ready for the SOS CDL permit test and have fun while you work, with this user-friendly 2018 CDL practice test!