Combination Vehicles Practice Test | Illinois 2024 #2

Train for FREE online with our Illinois CDL combination vehicle 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 combination license in 2024, 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 DMV requirements for issuing a combination license may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . Avoid needing to make sudden lane changes by:

Using your horn to encourage other drivers to move out of your lane.

Only driving slower than the posted speed limit.

Watching the road ahead while driving.

Pulling off the road and waiting when there is high traffic.

Making a sudden lane change can be dangerous when driving a combination vehicle. Avoid the need to make a sudden lane change by looking down the road for upcoming obstacles that will require you to change lanes.

2 . When a combination vehicle goes around a corner:

The turn should be made as tightly as possible.

The front and rear wheels move in different paths.

The rear wheels should run over the curb.

It is acceptable for street signs to be knocked over if they are too close to the road.

When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking. This effect is especially pronounced on vehicles with trailers.

3 . Rollovers are most likely to happen when:

Drivers turn too fast.

Driver turn too slowly.

It is windy.

It is raining.

Rollovers happen when an operator turns too fast. Drivers should be sure to slow down before entering turns and curves, especially when transporting a fully-loaded rig.

4 . If colors are being used to distinguish glad hands, which color is used for emergency lines?

Orange

Yellow

Blue

Red

When trailer air lines are color-coded, the service lines are generally blue and the emergency lines are generally red.

5 . To prevent a trailer from rolling over, you should:

Speed up when nearing a corner.

Make sudden steering moves.

Take on-ramps faster than the posted speed limit.

Drive slowly around corners.

To reduce the risk of a rollover when driving a combination vehicle, you should keep the weight of the cargo as low to the ground as possible and drive slowly around turns.

6 . When lightly loaded, combination vehicles:

Should not be driven.

Have reduced braking capabilities.

Will not rollover.

Should be loaded with most of the weight in the rear of the trailer.

When a combination vehicle is lightly loaded, it may have poor traction. It is very easy for wheels to lock up on lightly-loaded vehicles when they are being stopped.

7 . What is the Johnson bar?

A hand valve that works the trailer brakes

A valve that indicates the fuel level

A valve that measures the amount of liquid in the air brake system

A valve that allows for the release of excess pressure in the braking system

The trailer hand valve, also called the trolley valve or Johnson bar, is used to work the trailer brakes. It should be used only to test the brakes.

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2024 Illinois | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in Illinois, you must first have a Commercial Driver’s License (CDL). Then, you need to pass the Hazardous Materials Endorsement Knowledge Test at a Secretary of State facility. After passing, you must complete a federal security threat assessment, which includes fingerprinting. Finally, pay the required fees to receive your endorsement.

To obtain a CDL Hazmat license in Illinois, you must first have a valid Commercial Driver’s License (CDL). You must be at least 21 years old and be able to pass a Hazmat Knowledge Test. Additionally, you will need to pass a Transportation Security Administration (TSA) background check, which includes fingerprinting. Lastly, you'll need to demonstrate ability to read and speak English.

When applying for a CDL Hazmat endorsement, you need to present your valid Commercial Driver's License (CDL). You also need proof of U.S. citizenship or legal status, such as a birth certificate or passport. Proof of Illinois residency is required too. Finally, you need to complete the TSA background check and fingerprinting forms.

Yes, there is a dedicated written test for the CDL Hazmat endorsement in Illinois. The test is designed to ensure drivers understand the safety protocols, regulations, and handling procedures for hazardous materials. It covers topics such as loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures.

The written test for the CDL Hazmat endorsement covers a range of subjects related to hazardous materials. This includes understanding hazard classifications, how to safely load and unload hazardous materials, how to use placards and labels, handling emergencies, and understanding rules for transporting specific types of hazardous materials.

Yes, there are additional fees associated with acquiring a CDL Hazmat endorsement in Illinois. These include a $30 fee for the written test, a $60 fingerprinting fee, and a $86.50 TSA background check fee. Please note that these fees are subject to change and it's recommended to check the latest updates from local DMV.

Yes, background checks are required for the CDL Hazmat endorsement in Illinois. The Transportation Security Administration (TSA) conducts a federal background check and fingerprinting to ensure the driver doesn't pose a security threat. This process includes checking criminal, immigration, and terrorist records. The driver must also not have any disqualifying offenses.

Yes, specialized training is required for the CDL Hazmat endorsement. Applicants must pass a written test that covers hazardous materials regulations and safety procedures. After passing the test, they also need to undergo a TSA security threat assessment. This process verifies their fitness to handle hazardous materials safely and securely.

No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in Illinois. This endorsement is required by federal and state law for drivers who transport hazardous materials. Driving without a valid endorsement can result in serious penalties including fines and potential disqualification of your commercial driving privileges.

Yes, you can add the CDL Hazmat endorsement to your current CDL license in Illinois. You don't need a new CDL, but you must pass the Hazmat knowledge test, undergo a TSA background check, and pay the required fees for the endorsement. Remember to study the Hazmat section of the CDL manual before taking the test.