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 Montana 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

1. Many products classed as poison are also:

Explanation
Many hazardous materials classified as poisonous are also flammable.

2. If turning to avoid a hazard:

Explanation
You should not brake while making a quick turn to avoid a hazard. Doing so could cause your wheels to lock and make your vehicle skid out of control.

3. When driving:

Explanation
It is important to communicate your intentions to others on the road. Make sure to signal before turning or changing lanes, even if no other vehicles are nearby.

4. Broken suspension parts:

Explanation
The suspension system holds up a vehicle and its load while keeping the axles in place. Defects in this system are extremely dangerous.

5. If involved in an accident, which of the following is not recommended?

Explanation
When involved in an accident, you should protect the area, notify authorities, care for the injured, collect required information, and report the accident. You can lose your license for leaving the scene of an accident.

6. Containers of nitric acid should be:

Explanation
Nitric acid should not be stacked above any other product. Containers of nitric acid may be stacked, but no higher than two containers high.

7. Drivers trapped behind a slow-moving vehicle often:

Explanation
It is common for drivers to tailgate slow-moving vehicles that cannot keep up with the speed of surrounding traffic. If you are being tailgated, allow the other driver to pass your vehicle.
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