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 possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Louisiana Commercial Driver License Manual. Questions come from chapters covering:Transporting Passengers and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question
Passing Score

1. To help prevent a rollover, cargo should be:

Explanation
If a vehicle is top-heavy, it is more likely to roll over. The weight of cargo should be positioned as low in a trailer as possible to minimize this risk.

2. On a shipping paper describing both hazardous and non-hazardous materials, the hazardous materials may be identified by being:

Explanation
If a shipping paper includes information about both hazardous and non-hazardous materials, the hazardous items must be clearly identified on the paper. They may be entered first, highlighted in a contrasting color, or identified with an "X" placed before the shipping description.

3. When driving a vehicle with empty cargo tanks that are used to transport hazardous materials, a driver:

Explanation
If your vehicle has cargo tanks that are used to carry hazardous materials, you must stop before crossing railroad tracks. This is true whether the tanks are full or empty.

4. During a cargo fire, opening the trailer doors may actually cause the fire to expand because doing so:

Explanation
When experiencing a cargo fire, it may be a bad idea to open the doors to the trailer. Doing so allows oxygen to enter the area, potentially causing the fire to flare up and expand.

5. During a pre-trip inspection, belts should be:

Explanation
When inspecting your vehicle, you should check all belts for tightness and excessive wear. You should learn how much "give" is appropriate for each belt.

6. If driving in extremely hot weather and the air pressure in your tires is too high, you should:

Explanation
Air expands as it gets warmer, so the air pressure in your tires could reach dangerously high levels while being driven in very hot weather. If this happens, stop and let your tires cool. Do not let air out of the tires, as this could result in the pressure dropping to an unsafe level once they cool down.

7. Which of the following is not a reason to use your mirrors?

Explanation
While regular mirror checks should be part of your normal driving routine, checking your mirrors is especially important when turning, changing lanes, merging, and performing tight maneuvers.
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