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 Commercial Driver Guide. Questions come from chapters covering: Cargo, Air Brakes and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question
Passing Score

8. To complete a Uniform Hazardous Waste Manifest, you must:

Explanation
A Uniform Hazardous Waste Manifest must be signed by hand. The name and EPA registration number of the shippers, carriers, and destination must also appear on the manifest.

9. A vehicle that is smaller than your vehicle:

Explanation
In general, a smaller vehicle will be able to come to a complete stop faster than a larger vehicle. Keep this in mind when determining your following distance.

10. Transporting liquid cargo:

Explanation
Due to the movement of the liquid in transit and the vehicle's high center of gravity, hauling liquid cargo in a tank vehicle requires special care.

11. If required to complete a vehicle inspection report in writing, the report must be signed:

Explanation
You must sign the previous vehicle inspection report only if defects were noted and certified to have been repaired or not needing to be repaired.

12. In an engine compartment, loose belts will:

Explanation
Be sure to check the tightness of the belts in your engine compartment. Loose belts will not turn the water pump and/or fan properly, which can lead the engine overheating.

13. The suspension system:

Explanation
The suspension system holds up the vehicle and its load while keeping the axles in place. Damage to a suspension system can be very dangerous.

14. The trailer hand valve should:

Explanation
The trailer hand valve works the trailer brakes but should only be used when testing them. Using it while driving could create a skid. Never use the trailer hand valve while parking because doing so may release the air pressure from the braking system, releasing the brakes that are holding the vehicle in place.
DMV Writen Test Logo