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Wisconsin CDL Permit Test - Tank

Number of questions: 20
Passing score: 16
Directions: 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 Wisconsin Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials, Air Brakes and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
You have made error so far
Passing grade —
4 or fewer errors

The minimum acceptable tread depth for rear tires is:

1/64 of an inch.
1/32 of an inch.
2/32 of an inch.

____ is a thin layer of ice that forms on road surfaces.

White ice
Black ice
Soft ice
Sharp ice

If your brakes fail on a downgrade, your best hope to stop is to:

Use an escape ramp.
Use the shoulder.
Drift to a stop.

Containers of hazardous materials must be:

Packed in larger brown-colored containers.
Braced to prevent movement during transportation.
Made of cardboard.
A maximum of four feet tall.

A hazardous material's identification number should appear:

On the transporting vehicle's bumper.
On the material's packaging.
On a sticker near the material's shipping container.

A vehicle should be equipped with all of the following, except:

A fire extinguisher.
Spare electrical fuses.
Warning devices for parked vehicles, such as flares.
A spotlight.

Baffled liquid tanks are:

Tanks that control the surge of liquids with perforated bulkheads.
Tanks that have no bulkheads and allow liquids to move freely.
Tanks that have nothing inside to slow down the flow of liquids.
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