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 three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Maryland Commercial Driver Guide. 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. When checking your vehicle's lights before driving:

Explanation
To check your vehicle's lights before a trip, you should set the parking brake, turn off the engine, remove the key from the ignition, and take the key with you. Turn on your low beam headlights and four-way flashers. Get out of the vehicle to make sure the lights are working properly.

2. When starting an engine, oil pressure should come up to a normal level:

Explanation
Look at your truck's gauges when starting the engine. The oil pressure in an engine should come up to a normal level within seconds of the vehicle's engine being started.

3. 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.

4. If a vehicle is equipped with power steering, you should inspect:

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

5. Which of the following is acceptable?

Explanation
When inspecting a vehicle, you should ensure that dual tires do not come into contact with each other or with other parts of the vehicle. Tire sizes should not be mismatched, and tires should not be cut or damaged in any way. Regrooved, recapped, or retreaded tires are not permitted to be used on the front wheels of a bus.

6. A highway curve should be taken:

Explanation
Due to a high center of gravity, tank vehicles are especially prone to tipping over in turns and curves. To counteract this, you should take curves and ramps at speeds that are well below the posted limits.

7. If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:

Explanation
You should stay in the right lane of a multilane road if your vehicle is being slowed down by a heavy load. Allow other vehicles to pass your truck using the left lane.
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