Combination #1

Combination Vehicles Practice Test | South Carolina 2025 #1

Train for FREE online with our South Carolina 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 SC combination license in 2025, practice as much as.. Read More

Train for FREE online with our South Carolina 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 SC combination license 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 DMV requirements for issuing a combination license may vary from state to state.

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1 . The trailer hand valve:

Should only be used when transporting cargo. The trailer hand valve should not be used for parking. This could cause all of the air to leak out of the braking system, resulting in the brakes releasing. Instead, use the parking brake.

2 . If your trailer begins to drift off course while you are backing, you should:

Return the steering wheel to the 12 o’clock position. If your trailer begins to drift while you are backing, you should correct the drift immediately by turning the top of the steering wheel in the direction of the drift.

3 . When coupling a trailer:

Only one set of glad hands should be connected. When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.

4 . In a double or triple combination, the ____ trailer should be directly behind the cab.

When positioning trailers in a combination, the most heavily-loaded trailer should be the closest to the tractor. The lightest trailer should be positioned in the rear.

5 . An air supply control in its "emergency" position will:

Accelerate the vehicle. Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.

6 . Look for matching colors when coupling glad hands. Service lines are often:

Blue. When coupling glad hands, make sure to couple together matching glad hands. To help drivers avoid mistakes, color coding is sometimes used. Service lines are often coded with the color blue and emergency lines are often coded with the color red.

7 . In a combination rig, it is best to make:

Slow, planned stops. When driving a combination vehicle, it is important to brake well in advance and look far ahead of your vehicle to avoid the need for sudden stops. Making habits of these actions will help you prevent your trailer from jackknifing.

See the exact questions that will be on the 2025 South Carolina DMV exam.

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2025 South Carolina | Frequently Asked Questions

To acquire a CDL Passenger endorsement in South Carolina, you must first hold a valid CDL. Then, you need to pass the Passenger Transport Test, which covers the special rules and skills for carrying passengers. Lastly, you must pass a driving test in a vehicle similar to one you'll be operating with passengers.
To obtain a CDL Passenger license in South Carolina, you must be at least 21 years old, hold a valid Commercial Driver’s License (CDL), pass a Passenger Transport written test, and complete a skills test in the type of vehicle you'll be driving. A background check and medical examination may also be required.
While South Carolina doesn't require specific training to secure a CDL Passenger endorsement, it's beneficial to have experience driving large vehicles. However, you must pass the Passenger Transport written test and a skills test in a passenger vehicle. Training programs can help prepare you for these tests and enhance your driving skills.
Yes, in South Carolina, to obtain a CDL Passenger endorsement, you must pass the Passenger Transport written knowledge test. This test focuses on specific rules and safety guidelines for transporting passengers. The test covers areas like inspecting passenger vehicles, loading/unloading passengers, and emergency procedures. You may also need to take a road skills test in a passenger vehicle.
During the CDL Passenger endorsement assessment, you'll need to demonstrate your ability to inspect your vehicle, manage passenger entry and exit, handle emergencies, and navigate different road types safely. You'll also need to show proficiency in maneuvering the vehicle through turns, intersections, and various traffic conditions.
No, it's illegal to transport passengers commercially without a valid CDL Passenger endorsement in South Carolina. This endorsement ensures that drivers have the necessary knowledge and skills to safely transport passengers. Violating this can result in fines, loss of commercial driving privileges, and even legal consequences.
Yes, you can add the CDL Passenger endorsement to your existing commercial driver's license. You don't need to apply for a new license. However, you will need to pass the passenger endorsement knowledge test and, in some cases, a skills test. Check with the South Carolina DMV for specific requirements.
Yes, there are restrictions for drivers with a CDL Passenger endorsement. They must comply with all federal and state regulations, including hours of service rules. They cannot transport more passengers than the vehicle is designed for, and they must ensure that all passengers use seat belts. Violation of these rules can lead to fines or loss of endorsement.
Yes, to obtain a CDL Passenger endorsement in South Carolina, you must be at least 21 years old. This is a federal requirement for any driver operating a commercial vehicle that crosses state lines. However, if you're only driving within South Carolina, you may be able to get a CDL at age 18. Always check with the South Carolina DMV for specific state requirements.
With a CDL Passenger endorsement in South Carolina, you can operate commercial vehicles designed to carry 16 or more passengers, including the driver. This includes buses, school buses, shuttle vans, and some types of limousines. Remember, the exact type of vehicle you can drive also depends on other endorsements and restrictions on your CDL.

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See the exact questions that will be on the 2025 South Carolina DMV exam.