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 or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the South Dakota 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. Texting while operating a CMV is:

Illegal.

Acceptable on rural roads.

Acceptable for drivers contacting their employers.

Texting and driving is dangerous for everyone on the road. It is illegal to text while operating a CMV.

2. If driving so slowly that you could impede other drivers, you should:

Drive in the left lane.

Drive while using your four-way flashers.

Drive without using any lights.

If you must drive so slowly that you will impede the flow of traffic, you should turn on your four-way flashers to alert drivers behind you (as long as local laws allow the use of flashers).

3. If a speed limit is posted, the posted speed:

Should never be exceeded.

May be exceeded if passing another vehicle.

May be exceeded if driving in a rural area.

A maximum posted speed limit is the fastest a vehicle may travel under ideal circumstances. A driver should decrease their driving speed as conditions require. A driver should never exceed the legal speed limit.

4. When checking your tires, which of the following is not an issue to correct?

Too much air pressure

Too little air pressure

Radial and bias-ply tires used together

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

Problems to check for when inspecting tires include: air pressure that is too low or too high; using radial and bias-ply tires together; tread depth of less than 4/32 of an inch in major grooves on front tires; and tread depth of less than 2/32 of an inch on all other tires.

5. How often do hazardous materials employees need to be trained?

At least once a week

At least once every three years

At least one every 10 years

Employees who work with hazardous materials must be trained and tested at least once every three years.

6. On low bridges:

Height warnings must always be posted.

Height warnings must be posted at least twice.

Height warnings may be posted, but do not have to be.

Height warnings are often, but not always, posted on low bridges. If you are unsure if you will be able to clear an overhead object, go slowly.

7. Cargo inside a trailer:

Does not need to be secured.

Should be stacked no more than three feet high.

Should be secured to prevent movement.

Cargo inside a trailer must be secured appropriately to prevent it from shifting in transit.

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