Knowledge Test Class B #2
Class B Driving Test | Illinois 2026 #2 Page 7 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 2026, 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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43 . How often does a truck with a gross weight of more than 8,000 pounds need to be inspected?
Every five years
Trucks registered with a gross weight of more than 8,000 pounds are among the vehicles required to undergo a semi-annual safety inspection.
44 . If someone pulls out in front of you and you cannot stop to avoid a crash, you should:
Accelerate.
If another vehicle pulls out in front of you, it is appropriate to brake as long as there is room for your vehicle to stop while you are using the appropriate braking technique. However, if you do not have room to stop, swerving may be a safer response.
45 . An Anti-Lock Braking System (ABS) will:
Not decrease your stopping distance.
Anti-Lock Braking Systems (ABS) will help you to maintain control during hard braking. ABS will not necessarily shorten your stopping distance.
46 . During exercises that are not the straight line backing exercise, you may exit your vehicle to check its position no more than:
Four times.
A driver is allowed to exit their vehicle to check its position during any basic control skills test exercise. This action is called a "look." During the straight line backing exercise, a driver may not exceed one look. During any other exercise, a driver may not exceed two looks.
47 . Intrastate carriers must have what information displayed on both sides of their vehicle?
The destination
Vehicles operated for intrastate commerce must have signs on both sides of the vehicle displaying the trade name, permit number, and registration number of the carrier.
48 . When exiting your vehicle, you must maintain ____ with the vehicle at all times.
Two points of contact
When exiting your vehicle during the basic vehicle control skills test, you must face the vehicle and maintain three points of contact at all times. If your testing vehicle is a bus, you must maintain contact with the handrail. Exiting the vehicle incorrectly may result in automatic failure of the basic control skills test.
49 . What should a driver do if their vehicle hydroplanes?
Take the vehicle out of gear.
If your vehicle begins to hydroplane, you should slow down by releasing the accelerator and pushing in the clutch.
50 . When performing a pre-trip inspection, you should make sure that:
There is something underneath the brake pedal.
When checking your vehicle's pedals during a pre-trip inspection, you should ensure that there is nothing under or around the pedals that will obstruct their use. Make sure the pedals are in proper working condition and that the surfaces of the pedals are grooved, if applicable.
See the exact questions that will be on the 2026 Illinois DMV exam.
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2026 Illinois | Frequently Asked Questions
A CDL Class B license in Illinois allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. It also permits the operation of vehicles designed to transport 24 passengers or more, including the driver.
A Class B Commercial Driver's License (CDL) in Illinois allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a towed vehicle not exceeding 10,000 pounds GVWR. This includes buses, farm labor vehicles, and any vehicles designed to transport 16 to 23 passengers including the driver.
To acquire a Class B CDL license in Illinois, you must be at least 18 years old (21 for interstate driving), possess a valid non-CDL driver's license, pass a vision test, and obtain a medical certificate. You'll also need to pass written knowledge tests and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam.
In Illinois, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL) for intrastate driving (within Illinois only). However, to drive across state lines or to carry hazardous materials, you must be at least 21 years old.
Endorsements for a Class B CDL license in Illinois are not necessary but can be beneficial. They allow you to operate specific types of vehicles. For instance, a passenger endorsement allows you to drive a bus, while a tank vehicle endorsement lets you drive tank trucks. Each endorsement requires passing additional written and/or skills tests.
The Class B CDL skills assessment in Illinois comprises three parts: a pre-trip vehicle inspection to check your understanding of your vehicle and if it's safe to drive, a basic controls test to assess your control over the vehicle, and an on-road driving test to evaluate your driving skills in various road situations and traffic conditions.
Yes, Class B CDL license holders in Illinois are limited to operating vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or towing vehicles not exceeding 10,000 pounds GVWR. They can't operate Class A vehicles unless they have the appropriate Class A endorsement. Also, transporting passengers or hazardous materials requires specific endorsements.
Yes, in Illinois, the written Class B CDL test is available in languages other than English. The Illinois Secretary of State's office offers the test in Spanish, Polish, and some other languages. However, federal regulations require that all CDL holders must be able to read and speak English sufficiently to converse with the general public, understand traffic signs and signals, and respond to official inquiries.
Yes, if you have a disability, you can request accommodations for the Class B CDL written exam in Illinois. You'll need to provide documentation of your disability and specify the type of accommodation needed. It's advised to make this request well in advance of your scheduled test date to give the DMV time to arrange appropriate accommodations.
Yes, if you don't pass the Class B CDL written test in Illinois, you can retake it. However, you must wait until the next business day to do so. If you fail three times, you'll need to start the application process over again. Remember, there may be additional fees for retaking the test.
