Class A Driving Test | Illinois 2025 #2

Train for FREE online with our Illinois class A 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 A permit in 2025, 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 A requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

1 . Without oil in its engine:

A vehicle will likely run smoothly.

A vehicle will make quick jerks while driving.

A vehicle's engine may be damaged quickly.

A vehicle's gas mileage will improve.

An engine can be rapidly destroyed if it is run without oil. If its oil pressure gauge is low or fluctuating, do not operate a vehicle.

2 . The use of hand-held cell phones while driving:

Is permitted for drivers age 18 and older.

Is permitted for drivers age 21 and older.

Is permitted for drivers age 25 and older.

Is prohibited.

In Illinois, the use a hand-held cell phone or other communication device while operating a motor vehicle is prohibited.

3 . Distracted driving:

Is not a concern.

Only happens when drivers are physically doing something, like using a cell phone.

Can occur due to mental activities, such as daydreaming.

Is encouraged on uncrowded roads.

Mental distractions can be just as dangerous as physical ones. It is possible for a person to look right at a hazard on the road but fail to notice it because their thoughts are occupied by something else.

4 . Overloading a vehicle with cargo can affect all of the following, except:

Steering.

Braking.

Speed control.

Cruise control.

Overloading can have negative effects on a vehicle's steering, braking and speed control.

5 . After starting a trip while transporting cargo:

You will not need to inspect the cargo.

The cargo should only be inspected if it is making noise.

The cargo should only be inspected if there is an obvious concern.

The cargo should be inspected after 50 miles on the road to ensure it is still properly secured.

The securement of cargo must be checked before beginning a trip, within the first 50 miles of a trip, and then again every three hours or 150 miles.

6 . Test the low pressure warning signal:

Once a month.

Once a week.

Twice a week.

Before every trip.

It is essential that your low pressure warning light function properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.

7 . More than ____ during a single skills test exercise will result in an automatic failure.

One encroachment

Two encroachments

Three encroachments

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.

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2025 Illinois | Frequently Asked Questions

To acquire a CDL Tank endorsement in Illinois, you must first have a Commercial Driver's License (CDL). Next, study the Tank Vehicles section of the Illinois Commercial Driver's License Study Guide. Once prepared, schedule and pass the written tank vehicle endorsement test at a Secretary of State Driver Services facility. The endorsement will then be added to your CDL.

To obtain a CDL Tank license, it is essential to have a Commercial Driver's License (CDL) first. Then, you need to study the Tank Vehicles section of the Illinois Commercial Driver's License Study Guide. After studying, you must pass the written tank vehicle endorsement test at a Secretary of State Driver Services facility in Illinois.

While specific training or experience isn't legally mandatory for a CDL Tank endorsement in Illinois, it is highly recommended. Understanding the operation of tank vehicles and handling of liquid cargo is crucial. Studying the Tank Vehicles section of the Illinois Commercial Driver's License Study Guide and passing the written test at a Secretary of State Driver Services facility is required.

Yes, to obtain a CDL Tank endorsement in Illinois, you must pass an additional written test. This test covers specific knowledge related to the safe transport of liquid and gaseous materials in tank vehicles. The information for the test can be found in the Tank Vehicles section of the Illinois Commercial Driver's License Study Guide.

The written test for the CDL Tank endorsement in Illinois covers various subjects including: high and low center of gravity and its impact on vehicle stability, how to inspect tank vehicles, how to drive vehicles loaded with liquids or gases, and special safety considerations for hazardous materials. All these subjects are detailed in the Illinois Commercial Driver's License Study Guide.

The CDL Tank endorsement assessment evaluates your understanding of tank-specific operations. You'll be tested on handling liquid surge, inspecting tank vehicles, managing a high center of gravity, and the implications of carrying a full or partial load. However, it's primarily a knowledge test, so specific driving maneuvers aren't typically assessed in this endorsement.

Yes, drivers with a CDL Tank endorsement must comply with specific requirements and regulations. These include maintaining a clean driving record, undergoing regular medical examinations, and adhering to hours-of-service regulations. Additionally, drivers must follow safety procedures when loading and unloading tanks, and comply with hazardous materials transportation regulations if applicable.

No, you cannot legally transport liquid or gas materials without a valid CDL Tank endorsement in Illinois. This endorsement is necessary for operating a commercial vehicle designed to transport any liquid or gaseous materials within a tank or tanks having an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more.

Yes, the CDL Tank endorsement can be added to your current license in Illinois. You don't need to apply for a fresh license. However, you must pass the Tank Vehicle endorsement test. Once passed, the endorsement will be added to your existing CDL, allowing you to legally operate tank vehicles.

Yes, handling hazardous materials with a CDL Tank endorsement requires adherence to specific regulations. Drivers must pass the Hazardous Materials (HazMat) endorsement knowledge test, undergo a federal background check, and submit fingerprints. They must also follow safety protocols for loading and unloading hazardous materials, and comply with shipping paper requirements.