Kentucky Driver's Examination

Combination #1

FREE CDL Combination Vehicles Practice Test Online | Kentucky 2024

Train for FREE online with our Kentucky 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 KY combination license 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 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 . When coupling, after you've connected the air lines to the trailer, you should:

Supply air to the trailer.

Activate the emergency brake.

Disconnect the glad hands.

Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. After connecting the air lines to the trailer while coupling, you should supply air to the trailer.

2 . Operating combination vehicles usually requires ____ operating single vehicles.

Less skill than

About the same level of skill as

More skill than

Combination vehicles are usually heavier and longer than single combination vehicles. Operating a combination vehicle requires a higher level of driving skill than operating a single commercial vehicle.

3 . If a trailer begins to jackknife, the driver:

Should not apply the trailer hand brake.

Should firmly apply the brakes.

Can straighten the trailer with the parking brake.

If a trailer begins to jackknife, you should release the brakes and allow the trailer wheels to regain traction with the road. Do not apply the trailer hand brake to attempt to straighten out the rig because the application of brakes is what caused the wheels to lock in the first place.

4 . To prevent a rollover, cargo should be:

Loaded with most weight on the driver’s side of the trailer.

Placed near the rear of the trailer.

Spread out in the trailer.

Cargo weight should be evenly distributed within a trailer to reduce the risk of a rollover. Do not place too much weight on one side of a trailer.

5 . Pushing in the trailer air supply control will:

Supply the trailer with air.

Deactivate the air brakes.

Prevent the vehicle from skidding.

Push in the trailer air supply control to supply the trailer with air. Pull out the trailer air supply control to turn off the air supply and activate the emergency brakes.

6 . Having anti-lock brakes on only one axle:

Will not make a difference in braking.

Will provide increased control in braking.

Will likely cause the air brakes to malfunction.

If a vehicle has anti-lock brakes on just one axle, the driver will still have more control during braking than they would without any anti-lock brakes.

7 . Shut-off valves:

Prevent air from escaping air brake systems.

Prevent air from entering air brake systems.

Override vehicles that are out of control.

Shut-off valves are used in air supply lines to control the passage of air from one trailer to another. The rear shut-off valve should always be closed to prevent air from leaving the braking system.

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2024 Kentucky | Frequently Asked Questions

In Kentucky, a Commercial Driver's License (CDL) Class B allows holders 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. This class typically includes straight trucks, large buses, segmented buses, and dump trucks with small trailers.

A Class B CDL license in Kentucky allows the holder to operate single vehicles with a gross vehicle weight rating of 26,001 pounds or more, or tow a vehicle not exceeding 10,000 pounds. This includes straight trucks, large buses, segmented buses, dump trucks with small trailers, and farm labor vehicles.

To acquire a Class B CDL license in Kentucky, you must be at least 18 years old (21 for interstate driving), have a valid Kentucky driver's license, pass a vision test, and complete a commercial driver’s license application. You'll also need to pass the General Knowledge test and any other knowledge tests for the specific vehicle type, plus a driving skills test.

In Kentucky, you must be at least 18 years old to obtain a Class B Commercial Driver's License (CDL) for intrastate driving (within Kentucky only). However, federal regulations require that you be at least 21 years old to drive a commercial vehicle across state lines, carry hazardous materials, or transport passengers.

While specific endorsements aren't necessary for a Class B CDL, they can provide additional driving privileges. Endorsements in Kentucky include H (Hazardous Materials), N (Tank Vehicles), P (Passenger Vehicles), S (School Buses), and T (Double/Triple Trailers). Each endorsement requires passing a knowledge test, and some require a skills test.

The Class B CDL skills assessment in Kentucky includes three parts: a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam. These tests assess your ability to inspect your vehicle before the trip, control the vehicle in various situations like backing, and drive safely in typical traffic situations respectively.

Class B CDL license holders in Kentucky are primarily limited to operating vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 26,000 pounds or vehicles towing another vehicle not exceeding 10,000 pounds. They can't operate Class A vehicles (tractor-trailers) without the appropriate license. Also, without specific endorsements, they can't transport hazardous materials, large numbers of passengers, or school children.

In Kentucky, the written Class B CDL test is primarily offered in English. However, Kentucky does provide the test in Spanish as well. It's important to note though, federal regulations require all CDL holders to have a basic understanding of English to communicate with officials and for safety reasons.

Yes, test accommodations are available in Kentucky for the Class B CDL written exam if you have a disability. You can request accommodations such as extra time, a quiet room, or a reader. To request these, you'll need to provide appropriate documentation of your disability to the Kentucky Division of Driver Licensing.

Yes, if you fail the Class B CDL written test in Kentucky, you can retake it. However, you must wait a minimum of one day before retesting. There is no limit to the number of times you can retake the test, but keep in mind that each attempt requires a new testing fee.