Tank Endorsement Test | South Carolina 2025 #1

Train for FREE with our South Carolina tank endorsement practice test online. 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 tank 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 CDL tank vehicle endorsement may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . When backing a trailer, you must turn the steering wheel:

In the direction you want the trailer to move.

In the direction opposite of where you want the trailer to move.

To the left until backing is complete.

When backing a vehicle with a trailer, you must turn the steering wheel in the direction opposite of where you want to go. Once your trailer starts to turn, you should turn the steering wheel the other way to follow the trailer.

2 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven

Seven to eight

Eight to nine

Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.

3 . A clue that your shipment contains hazardous materials is that:

The shipper is in a certain type of business, such as a fireworks dealer or pest control firm.

The last shipment you picked up was labeled as hazardous.

The packaging looks damaged.

The shipper's business is located in a bad part of town.

One clue that a shipment may contain hazardous materials is that the shipper is in a line of business that you would expect to involve hazardous materials. Examples of such businesses include paint dealers, chemical supply businesses, or pest control firms.

4 . You should always be able to stop within:

10 feet of your vehicle.

1,000 feet of your vehicle.

Your view of the road ahead.

One minute of hitting the brakes.

It is essential that your vehicle will be able to stop within the area of the road that you are able to see. This means that you must slow down whenever conditions reduce visibility.

5 . Aggressive driving is:

Operating a vehicle in a selfish or pushy manner.

Operating a vehicle with a strong regard for other motorists’ safety.

Operating a vehicle in the left lane.

Aggressive driving is the act of operating a motor vehicle in a selfish, bold, or pushy manner and without regard for the rights or safety of other road users.

6 . When starting an engine, warning lights and buzzers should:

Turn on and stay on.

Flicker occasionally.

Turn off right away.

After starting a vehicle's engine, the warning lights and buzzers for oil, coolant, charging circuits, and the Anti-Lock Braking System (ABS) should go out right away.

7 . Before driving a power steering-equipped vehicle, you should make sure that:

The fluid is at a proper level.

The hoses are connected to the battery.

Any leak is small.

When inspecting a vehicle that is equipped with power steering, check the hoses, pumps, and fluid level. In particular, you should look for leaks in the hoses.

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2025 South Carolina | Frequently Asked Questions

To secure a CDL Doubles/Triples endorsement in South Carolina, you must first have a Commercial Driver's License (CDL). After that, you need to pass a written knowledge test on handling large vehicles. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and anticipating and handling different driving situations.

To obtain a CDL Doubles/Triples license, you must have a valid Commercial Driver’s License (CDL). Then, you'll need to pass a Doubles/Triples endorsement knowledge test. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and handling various driving situations. Training or experience driving these types of vehicles is also beneficial.

While it's not required by law, having practical training or experience driving double/triple trailers is highly beneficial and might be required by employers. The CDL Doubles/Triples endorsement primarily requires passing a knowledge test. However, understanding how to handle these large vehicles, including coupling/uncoupling and inspection procedures, is crucial for safety.

Yes, to obtain a CDL Doubles/Triples endorsement in South Carolina, you must pass a written knowledge test. This test covers specific topics related to driving doubles and triples, such as coupling and uncoupling, inspecting these types of vehicles, and handling various driving situations. It's an additional requirement beyond the general CDL license.

The CDL Doubles/Triples endorsement test is primarily a written exam, focusing on knowledge rather than practical skills or maneuvers. It covers areas like coupling and uncoupling, vehicle inspection, and handling specific driving situations. However, practical skills such as maneuvering these vehicles safely can be beneficial, even if not directly tested. Always check with your local DMV for specific requirements.

No, it is not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in South Carolina. This endorsement is required by law to ensure that drivers have the necessary skills and knowledge to safely operate multiple trailers. Violating this requirement can result in penalties and potential loss of driving privileges.

You can append the CDL Doubles/Triples endorsement to your existing CDL license. You do not need to initiate a new application for a separate license. However, you will need to pass the Doubles/Triples knowledge test, and pay the appropriate fees to add this endorsement to your current CDL license. Always check with your local DMV for specific procedures.

Yes, drivers with a CDL Doubles/Triples endorsement are subject to specific rules and regulations. For instance, they must comply with weight restrictions, follow safety protocols for coupling and uncoupling trailers, and adhere to specific driving techniques. Additionally, they must abide by all general CDL rules, including maintaining a logbook and observing Hours of Service regulations.

In South Carolina, a combination vehicle (like a double or triple trailer) can have a maximum weight of 80,000 lbs. The maximum length for a double trailer is 61 feet for the two trailers combined. For triple trailers, the total combined length is typically limited to 75 feet. However, these restrictions can vary based on local regulations and the specific roadways being used.

Yes, there are specific safety guidelines and regulations in South Carolina for driving double/triple trailers with a CDL Doubles/Triples endorsement. These include maintaining proper following distances, adjusting driving techniques to account for the longer length and increased weight of the combination, and being aware of potential stability issues. It is important to adhere to these guidelines to ensure safe operation of double/triple trailers on the road.