General Knowledge (409 questions)
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Questions 1-50
General Knowledge Test 1
Start your journey here. Covers the essentials of safely operating a commercial vehicle in Illinois. Unlimited attempts. Detailed explanations.
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Questions 51-100
General Knowledge Test 2
Expect questions on vehicle checks, proper braking technique, fire prevention, visibility, space around your vehicle, stopping distance, and matching speed. -
Questions 101-150
General Knowledge Test 3
Explore essential concepts including vehicle inspection, alcohol and driving, transporting cargo safely, inspecting cargo, air brakes, and important definitions. -
50 questions
General Knowledge Test Simulator
Designed to replicate the actual CDL test experience. 50 multiple choice questions chosen at random from our database. Each new attempt generates a new set of questions.
HazMat (30 questions)
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Questions 1-30
IL CDL HazMat Test 1
The path towards a HazMat Endorsement starts here. Questions cover loading requirements, regulated products, document storage, tire inspection, and item descriptions.
Passenger Vehicles (20 questions)
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Questions 1-20
IL Passenger Vehicles Test 1
Test your knowledge of key concepts including proper procedures at railroad crossings, effective use of mirrors, matching speed with traffic, and stopping distances.
School Bus (20 questions)
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Questions 1-20
IL CDL School Bus Test 1
Master the key aspects of operating a school bus. This practice test covers crucial topics like approaching stops, matching speed, and transporting passengers safely.
Air Brakes (25 questions)
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Questions 1-25
IL CDL Air Brakes Test 1
Begin testing your knowledge of air brakes here. Covers tractor valves, pressure gauges, spring brakes, dual air brakes, brake fading/failure, air storeage tanks and more.
Combination Vehicles (24 questions)
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Questions 1-24
IL Combination Vehicles Test 1
Boost your understanding of coupling tractor semi trailers, trailer hand valves, rollover risks, and trailer air lines with this powerful practice test.
Double/Triple Trailers (20 questions)
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Questions 1-20
IL Double/Triple Trailers Test 1
Covers crucial topics including mastering proper steering techniques, coupling and decoupling trailers, navigating curves, managing space, and handling skids.
Tanker Vehicles (30 questions)
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Questions 1-30
IL CDL Tanker Vehicles Test 1
The path towards a Tanker Vehicles Endorsement starts here. Covers identifying tanker vehicles, outage, high center of gravity, bulkheads, and baffled/unbaffled tanks.
Pre-Trip Inspection (9 questions)
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Questions 1-9
IL CDL Pre Trip Inspection Test 1
Covers overall vehicle safety, documentation checks, vehicle components, the brake system, and operational elements such as lights, signals, and controls.
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Illinois CDL Handbook 2024
Get the latest (2024) official IL CDL Handbook.
Illinois CDL Overview
Understanding the types of CDLs available in Illinois and their requirements is crucial for aspiring commercial drivers. Let’s break down the essential information you need to know.
Types of Illinois CDL Licenses
Class A CDL
A Class A CDL in Illinois allows you to operate any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more, provided the towed vehicle is heavier than 10,000 pounds. This license is ideal for those looking to drive tractor-trailers, truck and trailer combinations, or tank vehicles.
Class B CDL
With a Class B CDL, you can drive any single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing a vehicle not heavier than 10,000 pounds. This license is suitable for driving straight trucks, large buses, and dump trucks with small trailers.
Class C CDL
A Class C CDL is required for operating vehicles designed to transport 16 or more passengers (including the driver) or for transporting hazardous materials. This license covers smaller vehicles that don’t fall under Class A or B but are used for specific commercial purposes.
Available Endorsements
In addition to the basic CDL classes, Illinois offers several endorsements to expand your driving capabilities:
- H – Hazardous Materials
- N – Tank Vehicles
- P – Passenger Vehicles
- S – School Buses
- T – Double/Triple Trailers
- X – Combination of Tank Vehicle and Hazardous Materials
Each endorsement requires additional testing and, in some cases, background checks.
Illinois CDL Requirements
To obtain an Illinois CDL, you must meet the following requirements:
- Age restrictions:
- 18 years or older for intrastate commerce
- 21 years or older for interstate commerce
- Medical requirements:
- Pass a Department of Transportation (DOT) physical examination
- Obtain a Medical Examiner’s Certificate
- Residency rules:
- Provide proof of Illinois residency
- Hold a valid Illinois driver’s license
Additionally, you must pass a series of knowledge and skills tests, which we’ll cover in the next section.
Illinois CDL Test Information
The Illinois CDL test consists of two main components: the written exam and the skills test. Understanding each part will help you prepare effectively.
Written Exam
The written exam tests your knowledge of commercial driving rules, regulations, and best practices. It includes:
- General Knowledge Test: Required for all CDL applicants
- Endorsement Tests: Based on the specific endorsements you’re seeking
- Air Brakes Test: Required if you plan to operate vehicles with air brakes
Each test consists of multiple-choice questions drawn from the Illinois CDL manual. You’ll need to score at least 80% to pass.
Ilinois CDL Tests At a Glance
Skills Test
After passing the written exam, you’ll need to take the skills test, which includes:
- Vehicle Inspection: Demonstrate your ability to perform a thorough pre-trip inspection
- Basic Control: Show proficiency in basic vehicle control maneuvers
- Road Test: Prove your ability to safely operate a commercial vehicle in various traffic situations
State-Specific Elements
Illinois may include additional questions or requirements specific to state laws and regulations. Always refer to the most recent Illinois CDL manual for the most up-to-date information.
Our Free Illinois CDL Practice Tests
We offer a comprehensive suite of free practice tests to help you prepare for your Illinois CDL exam. Each test is designed to mimic the format and difficulty of the official exam, ensuring you’re well-prepared on test day.
General Knowledge Test
Our General Knowledge practice test covers the essentials all CDL holders must know, including traffic laws, safe driving techniques, and basic vehicle operation.
Combination Vehicles Test
If you’re aiming for a Class A CDL, this test will help you master the concepts related to operating combination vehicles safely.
Air Brakes Test
Essential for anyone planning to drive vehicles with air brakes, this test covers the operation, maintenance, and safety of air brake systems.
Hazardous Materials Test
Prepare for the H endorsement with our Hazmat practice test, covering the transportation of hazardous materials.
Tanker Vehicles Test
Master the skills needed for the N endorsement with our tanker vehicles practice test.
Doubles/Triples Test
If you’re seeking the T endorsement, use this practice test to familiarize yourself with the operation of double and triple trailers.
Passenger Vehicles Test
Aspiring bus drivers can prepare for the P endorsement with our passenger vehicles practice test.
School Bus Test
For those seeking the S endorsement, our school bus practice test covers the specific knowledge needed for safely transporting students.
Study Tips for the Illinois CDL Exam
Effective preparation is key to passing your CDL exam. Here are some strategies to help you succeed:
Using Practice Tests Effectively
- Take multiple practice tests to familiarize yourself with the format and types of questions
- Review your incorrect answers and focus on areas where you need improvement
- Use practice tests to track your progress and identify knowledge gaps
Studying the Illinois CDL Manual
- Read the entire manual thoroughly
- Pay special attention to sections related to your desired class and endorsements
- Use highlighting and note-taking to emphasize key points
Time Management Strategies
- Create a study schedule and stick to it
- Break your study sessions into manageable chunks
- Alternate between reading the manual and taking practice tests
Remember, consistent effort over time is more effective than cramming at the last minute.
Start Your Free Illinois CDL Practice Test Now!
You’re now equipped with the knowledge to begin your journey toward obtaining your Illinois CDL. Our comprehensive practice tests are designed to give you the confidence and skills needed to pass your exam on the first try.
Don’t wait – start your free Illinois CDL practice test today and take the first step toward your new career in commercial driving. Select a test to begin, and join the ranks of successful CDL holders driving the roads of the Land of Lincoln!
Remember, with dedication, thorough preparation, and our practice tests, you’ll be well on your way to achieving your goal of becoming a licensed commercial driver in Illinois. Good luck, and safe driving!