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 Vermont Commercial Driver’s 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. When starting an engine:

Explanation
After a vehicle is started, the warning lights and buzzers should go out after a few seconds. If the warning signals do not turn off, there may be something wrong with the vehicle.

2. How long should it take for oil pressure to reach a normal level when starting a vehicle?

Explanation
After starting a vehicle's engine, the oil pressure should come up to a normal level within seconds. Do not operate a vehicle if it has oil pressure that is low, dropping, or fluctuating.

3. Backing with a trailer is dangerous because:

Explanation
Backing a truck is always dangerous because the driver may not be able to see everything behind them. CMV operators should avoid backing whenever possible.

4. When driving a tank vehicle with liquid cargo, the driver should:

Explanation
When driving with a tank of liquid, you should increase your following distance in order to reduce the need for sudden stops, thereby reducing the chance of liquid surge.

5. Pre-trip inspections are:

Explanation
Federal and state laws require drivers to inspect their vehicles before every trip, regardless of length.

6. In poor weather, many drivers:

Explanation
In bad weather, many automobile drivers will follow large trucks too closely, particularly if visibility is poor.

7. When starting a vehicle, warning lights and buzzers:

Explanation
After starting a vehicle's engine, the warning lights and buzzers should turn on, then quickly turn off.
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