Tank

This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or.. Read More

This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has two, three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the South Carolina Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question
Passing Score

1. If a spill occurs from a tank vehicle you are operating:

Explanation
It is illegal to transport liquids or gases in a leaking tank. If you do drive a leaking tank, you may be liable for the costs of cleaning up the spilled material.

2. To operate a vehicle that is used to transport hazardous materials, a driver must have:

Explanation
You must have a commercial driver license with a hazardous materials endorsement before driving a vehicle of any size that is used to transport hazardous materials, even if the vehicle is not transporting hazardous materials at the time of operation.

3. Emergency equipment, such as fire extinguishers, are:

Explanation
All commercial motor vehicles must carry appropriate emergency equipment, including fire extinguishers.

4. When refueling a vehicle transporting hazardous materials:

Explanation
Always turn the engine off before refueling a vehicle carrying hazardous materials. Someone must always be at the nozzle controlling the fuel flow.

5. When traveling down a hill:

Explanation
When a vehicle is traveling on a downward slope, the force of gravity will cause its speed to increase.

6. When loading liquid cargo, you should take into account:

Explanation
Factors that affect how much liquid is safe to load into your tank include how much the liquid will expand in transit, the weight of the liquid, and legal weight limits.

7. When changing lanes, you should:

Explanation
Always change lanes slowly and smoothly. If there is a vehicle in the other lane that you did not see before beginning to move, they will have more time to react to your vehicle.
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