Tank

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..

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 Louisiana Commercial Driver License Manual. Questions come from chapters covering:Transporting Passengers and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Passing grade:

Outage:

Explanation
Because liquids expand when their temperatures increase, some space must be left in a tank to accommodate the expansion. This space is referred to as "outage." The amount of required outage is different for different liquids.

When should mirrors be adjusted?

Explanation
Mirror adjustment should be checked prior to the start of any trip. If your vehicle has a trailer, the trailer must be straight in order for the mirrors to be checked accurately.

Before entering a curve, you should:

Explanation
It is important that the driver of a CMV always downshifts before entering a curve.

If you are backing and the trailer begins to drift off-course, the driver should:

Explanation
If your trailer begins to drift while you are backing, you should correct the drift immediately by turning the top of the steering wheel in the direction of the drift.

How can you check hydraulic brakes?

Explanation
Check hydraulic brakes by pumping the brake pedal three times before applying firm pressure to the pedal for five seconds. The pedal should not move. If it does, there may be a leak or some other problem in the braking system.

When driving on packed snow, you should reduce your speed by:

Explanation
Reduce your speed when traveling on surfaces that provide reduced traction. Reduce your speed by one-half or more when traveling on packed snow.

Wheels with welding repairs are:

Explanation
Wheels or rims that have had welding repairs are not safe for use. They should be replaced before the vehicle is taken on the road.
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