Instructions

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 chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Mississippi Professional Driver’s Manual. Questions come from chapters covering: Transporting Cargo, Transporting Passengers and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question 20

Passing Score 16

1. During a bus ride:

Carry-on baggage may be kept in the aisle.

Passengers may sit in the aisle.

Aisles must remain free of obstacles.

Items may be placed in the aisle if passengers could easily step over them.

Do not allow riders to leave carry-on baggage in any doorway or aisle. There should be nothing in the aisle that might trip other riders. Secure baggage in a way that prevents damage.

2. Tanks have high centers of gravity, which means:

They get very good gas mileage.

They are easy to roll over.

They are very stable.

They are easy to steer.

Tank vehicles have high centers of gravity, which makes them vulnerable to rollover.

3. In general, before loading or unloading any flammable liquids, an engine should be:

Turned off.

Revved up.

Turned on.

Before loading or unloading a tank with flammable liquids, you should turn off the engine, unless running the engine is necessary to operate a pump. Ground the tank before opening the filling hole and maintain the ground until after closing the filling hole.

4. Identification numbers assigned to chemicals can be found:

In the DOT Emergency Response Guidebook.

In the truck's operation manual.

On the EPA’s website.

At fuel stations.

The United States Department of Transportation (DOT)’s Emergency Response Guidebook (ERG) lists all hazardous chemicals and their assigned identification numbers.

5. Driving with a cargo of hanging meat in a trailer:

Is discouraged during the summer months.

Can be problematic because animals are attracted to the smell of the meat.

Is challenging because the load has a high center of gravity.

An operator should drive with care when transporting a cargo of hanging meat. Such a load is unstable, both because it has a high center of gravity and because the swinging of the meat can affect the driver's handling of the vehicle.

6. When loading or unloading a tank that is divided by bulkheads, equal weight distribution is:

Essential.

Unimportant.

Optional.

Some tanks are divided into multiple smaller tanks by bulkheads. When loading or unloading such tanks, pay attention to weight distribution. Be careful not to place too much weight on a single end of the tank.