Combination #1
Combination Vehicles Practice Test | South Carolina 2024 #1 Page 2 of 3
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 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.
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8 . When should the trailer hand valve be used?
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. Using it while a vehicle is in motion could cause a skid.
9 . One way to prevent a rollover is to:
Keep cargo as far from the ground as possible.
A rollover is more likely if cargo is unevenly loaded in a rig. To help prevent a dangerous rollover, it is important to keep a load as centered on the rig as possible.
10 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
Air pressure is above 45 psi.
In vehicles equipped with an automatic tractor protection valve, the valve will pop out if air pressure drops to a level between 20 and 45 psi. When the valve pops out, the protection valve will close, stopping the flow of air.
11 . What is another name for the service line?
The parallel line
The trailer service air line may also be referred to as the control line or signal line.
12 . Push in the trailer air supply control to:
Supply the trailer with air.
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.
13 . When driving a trailer with ABS, you should:
Try to not brakes as often as you would when driving a vehicle without ABS.
When driving a tractor-trailer combination equipped with an Anti-Lock Braking System (ABS), you should brake in the same manner that you would if operating a vehicle without ABS.
14 . What is the Johnson bar?
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. Using it while a vehicle is in motion could cause a skid.
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2024 South Carolina | Frequently Asked Questions
To obtain a CDL Hazmat endorsement in South Carolina, you must have a valid Commercial Driver's License (CDL). Then, pass the written Hazardous Materials (HazMat) test at a DMV office. You'll also need to undergo a federal background check and fingerprinting. A Transportation Security Administration (TSA) security threat assessment will be conducted before granting the endorsement.
To obtain a CDL Hazmat license, you must first hold a valid Commercial Driver's License (CDL). You should be at least 21 years old and have good driving records. You also need to pass a written Hazardous Materials (HazMat) test. Furthermore, you must pass a federal background check, fingerprinting, and Transportation Security Administration (TSA) security threat assessment.
When applying for a CDL Hazmat endorsement, you'll need to provide your current valid CDL, proof of U.S. citizenship or lawful permanent residency (like a birth certificate or green card), and proof of identity. You'll also need to complete the Hazmat endorsement application and provide fingerprints for the background check. Lastly, you must pass the written Hazmat knowledge test.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. The Hazardous Materials Endorsement Knowledge Test is designed to assess your understanding of the safe transportation of hazardous materials. The test covers topics including loading and unloading, bulk packaging, and emergency response information. It's an essential part of obtaining your Hazmat endorsement.
The written test for the CDL Hazmat endorsement covers various topics, including the identification of different hazardous materials, proper loading and unloading procedures, use of placards and labels, emergency response procedures, and understanding the Hazardous Materials Regulations. It also tests knowledge on how to safely operate a vehicle transporting hazardous materials.
Yes, there are extra charges associated with acquiring a CDL Hazmat endorsement. You will need to pay for the fingerprinting and background check, which can cost around $86.50. Additionally, there may be a fee for the knowledge test and the endorsement itself. Fees can vary, so it's best to check with your local DMV for exact amounts.
Yes, to obtain a CDL Hazmat endorsement, you must undergo a federal background check and fingerprinting. This is part of the Transportation Security Administration's (TSA) security threat assessment. The process helps ensure that hazardous materials are transported safely by checking for criminal history, immigration status, and mental health issues among other factors.
Yes, specialized training is mandatory for the CDL Hazmat endorsement. You must pass a written hazardous materials knowledge test and a TSA security threat assessment. Training typically includes understanding how to handle hazardous materials, emergency response procedures, and safety protocols. The certification is included as an endorsement on your Commercial Driver's License.
No, it's illegal to transport hazardous materials without a valid CDL Hazmat endorsement in South Carolina. The endorsement ensures that you have the necessary training and knowledge to handle and transport hazardous materials safely. Violating this can result in hefty fines, license suspension, or even criminal charges.
Yes, you can add the CDL Hazmat endorsement to your current CDL license in South Carolina. You don't need a new license, but you must pass a written test and a TSA background check. After successful completion, the Hazmat endorsement will be added to your existing CDL license.
