FREE Air Brakes Endorsement Test Online | Illinois 2023
Train for FREE online with our Illinois CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a IL Class A/Class B driver license in 2021, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
1 . To use the controlled braking method, you should:
The method of controlled braking involves applying the brakes as hard as you can without locking the wheels. If you need to make large steering adjustments while using controlled braking, you should remove your foot from the brake pedal, steer, then reapply the brakes.
2 . Air tank drains:
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do so can cause damage. Manually operated drains should be used at the end of each day of driving.
3 . A dual air brake system:
A dual air brake system has two separate air brake systems that use a single set of brake controls. One system typically operates the regular brakes on the rear axle or axles. The other system operates the regular brakes on the front axle.
4 . Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
5 . On newer vehicles, how do you put on the parking brake?
On newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The knob is pulled out to set the brakes, and pushed in to release them.
6 . If using air tanks with manually operated drains, how often should you drain the tanks?
To prevent the build up of oil and water in a vehicle's air tanks, manually operated air tank drains should be used at the end of each day of driving.
2023 Illinois | Frequently Asked Questions
You will be given three chances to complete the written and/or road tests successfully. A 90-day waiting period will apply if the written and/or road tests are not passed satisfactorily.
The CDL test in Illinois consists of 50 questions.
A CLP is obtained by passing the Combination Knowledge (Class A) written test and/or the applicable Endorsement/Restriction Knowledge written test(s), as well as paying the appropriate fee (s). After you've gotten your CLP, you'll need to book a CDL appointment to complete the required skills and driving tests.
That, like any other exam, is contingent on your preparation. The Illinois CDL general knowledge and endorsement examinations may be more difficult than they need to be if you've just tried to memorize the manual.