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 North Dakota Commercial Driver Guide. Questions come from chapters covering: Driving Safely, Transporting Cargo, Air Brakes, 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. If something is found to be unsafe during a pre-trip inspection, you should:

Explanation
If a pre-trip inspection reveals anything unsafe about your vehicle, you must get it repaired. It is illegal to operate an unsafe vehicle.

2. Hydroplaning usually occurs:

Explanation
In places where water collects on the road, it is possible for a vehicle to hydroplane. Low tire pressure or worn tire tread makes this more likely to happen. If there is enough water on a road surface, hydroplaning can occur at speeds as low as 30 mph.

3. A fatigued driver:

Explanation
If you are fatigued, you will not see or react to hazards as quickly as you would if you were fully energized and awake. You will be impaired in making critical decisions.

4. When checking the exhaust system, it should be:

Explanation
When checking the exhaust system, you should verify that no parts of the system are loose, broken, or missing.

5. When approaching an active railroad crossing:

Explanation
At a railroad crossing, do not assume that you will hear an approaching train. Trains may be prohibited from sounding their horns in certain areas, or the sound of its horn may be covered by noise from your vehicle. Do not assume that warning lights or other signals will announce a train.

6. When a driver is not in their vehicle, hazardous materials' shipping papers should be:

Explanation
Shipping papers for hazardous materials should always be easily accessible. When a driver is not in their vehicle, hazardous materials' shipping papers should be left on the driver's seat.

7. What happens if brakes become too hot?

Explanation
If brakes are overused, they may overheat and stop working. This is referred to as brake fade.
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