Instructions

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 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 Arizona 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 20

Passing Score 16

1. A shipping paper:

Is not needed for most shipments of hazardous materials.

Is required for all shipments of hazardous materials.

Can be kept in a digital file.

Shippers of hazardous materials are required to provide proper shipping papers to communicate the risks of the materials.

2. Exhaust system parts should:

Rub against the fuel system.

Rub against tires.

Not leak.

It is essential that exhaust system parts are not leaking or otherwise broken. A faulty exhaust system can let poisonous fumes into the cab or sleeper berth.

3. When accelerating on a surface with poor traction, such as a wet road, a driver should:

Speed up quickly.

Speed up slowly.

Not be concerned about the pavement.

You should accelerate very gradually when driving under conditions that create poor traction.

4. How often are hazardous materials employees required to be trained and tested?

Once every year

Once every three years

Once every five years

All drivers must be trained in the security risks of hazardous materials transportation. This training must include how to recognize and respond to possible security threats. Hazardous materials employees must be trained and tested at least once every three years.

5. Which of the following is acceptable if found during a pre-trip inspection?

Tires of mismatched sizes

Tread of 3/32 of an inch in the grooves of the front tires

Tires manufactured by different makers

When checking the tires as part of a pre-trip inspection, make sure the tires have sufficient tread. There should be at least 4/32 of an inch of tread in every major groove of the front tires, and at least 2/32 of an inch of tread depth on the other tires. Tire sizes should not be mismatched.

6. Rims with welding repairs:

Are not safe to be used.

Are acceptable on combination vehicles.

Are acceptable only when traveling at speeds under 40 mph.

Wheels or rims that have had welding repairs are never safe for use.

7. When checking tires, finding which of the following is not a cause for concern?

Too much air pressure

Tread of at least 4/32 of an inch in the grooves on front tires

Radial and bias-ply tires used together

When checking your vehicle's tires, you should confirm that air pressure is neither too low nor too high; that there is at least 4/32 of an inch of tread depth in every major groove on the front tires; and that radial and bias-ply tires are not used together.

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