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 four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Indiana 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

8. The controlled braking method is:

Explanation
The method of controlled braking involves applying the brakes as hard as you can without locking the wheels. If you need to make large steering adjustments while using controlled braking, you should remove your foot from the brake pedal, steer, then reapply the brakes.

9. ____ is a thin layer of ice that forms on road surfaces.

Explanation
Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. This makes the road look as if it is merely wet.

10. If an aggressive driver is involved in a crash on the road ahead of you, you should:

Explanation
If you observe a crash involving an aggressive driver, you should stop a safe distance from the crash scene, wait for police to arrive, and inform them of the aggressive behavior you witnessed.

11. Tanks usually have:

Explanation
Driving tank vehicles requires special care because they have high centers of gravity. Drivers should be particularly aware of their speeds when operating in turns and curves

12. An Anti-Lock Braking System (ABS) will:

Explanation
Anti-Lock Braking Systems (ABS) will help you to maintain control during hard braking. ABS will not necessarily shorten your stopping distance.

13. A convex mirror is sometimes called a ____ mirror.

Explanation
Large vehicles often have curved, convex mirrors, sometimes referred to as "fisheye," "spot," or "bug-eye" mirrors. These mirrors provide a wider view than flat mirrors. However, they also make objects seem smaller and farther away than they actually are.

14. Which of the following is not a tire problem to check for and avoid?

Explanation
During an inspection, there are a number of tire problems to check for and avoid. Look for air pressure that is too low or too high; excessive wear; cuts or other damage; tread separation; dual tires that come into contact with each other or other parts of the vehicle; mismatched tire sizes; radial and bias-ply tires used together; cut or cracked valve stems; and regrooved, recapped, or retreaded tires on the front wheels of a school bus.
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