FREE CDL Class B Driving Test Online | Illinois 2024 Page 3 of 7
Train for FREE online with our Illinois class B license 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 CDL class B permit 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 CDL class B requirements may vary from state to state.
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15 . While driving, if you notice anything affecting safety or mechanics, you should:
Not use that part of the vehicle and hope others don't notice the problem.
At the end of each day of driving, you may be required to make a written report on the vehicle or vehicles driven. Be sure to make note of any issues that could affect the safety of the vehicle or that could lead to a mechanical breakdown.
16 . What happens when a vehicle hydroplanes?
The vehicle becomes heavier.
Hydroplaning occurs when a vehicle's tires lose contact with the road surface and instead glide along on a film of water above the surface of the road.
17 . In a vehicle with dual air brakes, what happens if one system is low on pressure?
The low system will use an auxiliary system to fill the tank.
In a dual air brake system, if one of the air systems gets very low on pressure, either the front or rear brakes will not be operating fully. You should bring your vehicle to a safe stop and have the air system repaired.
18 . Foundation brakes are used:
At each wheel.
Foundation brakes are used at each wheel. The most common type is the S-cam drum brake.
19 . More than ____ during a single skills test exercise will result in an automatic failure.
Zero encroachments
The examiner will score the number of times your vehicle touches or crosses an exercise boundary line. Each encroachment will count as an error, resulting in points against your skills test score. More than three encroachments on a single exercise will result in a basic control skills test failure.
20 . Exceeding the number of pull-ups allotted for a single exercise will result in:
An extra point against your score.
A driver is allowed to use two pull-ups without penalty during any skills test exercise, aside from the straight line backing exercise, during which only one pull-up is permitted. Exceeding the number of permitted pull-ups during a single exercise will result in automatic failure of the basic vehicle control skills test.
21 . Wheel rims that have been welded should:
Not be used.
