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 two, three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Utah Commercial Driver License Handbook. 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. A thin layer of ice that forms on road surfaces is called:

Explanation
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.

2. Hazardous materials should be loaded and unloaded:

Explanation
Many hazardous materials become more dangerous when exposed to heat. Hazardous materials should be loaded and unloaded away from heat sources.

3. Front-to-back surge is usually very strong in:

Explanation
Smooth bore tanks, also known as unbaffled tanks, contain nothing to slow the movement of liquid and are likely to be affected by front-to-back liquid surge.

4. When driving in hot weather:

Explanation
Because air pressure increases as air expands in the heat, it is important to monitor your tire pressure when driving in very hot weather. To prevent the engine from overheating, there must be an adequate amount of oil in the engine, as well as enough water and antifreeze in the cooling system. Antifreeze is helpful for the engine in both hot and cold weather.

5. If required, ____ identical placards must be placed on a vehicle.

Explanation
When hazardous materials placards are required, a vehicle must display four identical placards. A placard should be placed on the front, on the rear, and on both sides of the vehicle.

6. In very hot weather, tires should be checked regularly because:

Explanation
Air expands as it gets warmer, so the air pressure in your tires could reach dangerously high levels while being used 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 the tires cool down.

7. The National Response Center must be notified of an incident resulting in any of the following, except:

Explanation
The National Response Center must be notified of any incident that results in death; hospitalization; $50,000 or more in estimated property damage; an evacuation of the general public or closure of a major transportation route/facility for more then one hour; fire, breakage, spillage, or suspected contamination involving radiation, bacteria, or toxins. Additionally, if the carrier judges the situation to be so serious that it should be reported, it should be reported.
DMV Writen Test Logo