A vehicle that lacks the proper placards for any hazardous materials on board may not be driven, except as necessary to protect life and property in an emergency.

May only be moved in an emergency.

May be driven if the cargo is not radioactive.

You should use a floor lining when transporting Division 1.1, 1.2, or 1.3 materials. The floors must be tight and the liner must be made from either non-metallic material or non-ferrous metal. Non-ferrous metals are any metals that do not contain iron or iron alloys.

Made from non-ferrous materials.

If a hazardous materials label will not fit onto a package, it may be placed on a tag that is securely attached to the package.

By being placed in a certain part of the trailer.

When required, hazardous materials placards must be placed on all four sides of a vehicle transporting hazardous materials.

Should be used on all four sides of the vehicle.

Should be used only by Class A licensed drivers.

Hazmat Test | Iowa 2025 #1 Page 4 of 5

On our website, we provide FREE practice - CDL hazmat test online! The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a IA CDL hazmat endorsement in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that Iowa requirements for issuing a hazmat endorsement for CDL may vary from those established in other states.

Number of Question 30

Passing Score 24

Number of Tests 20

Hazmat Test | Iowa 2025 #1 Page 4 of 5

19 . An improperly placarded vehicle:

20 . When loading compressed gas, the liquid discharge valves should be:

21 . When Division 1.3 materials are being transported, the floor liner should be:

22 . When you are behind the steering wheel, shipping papers should be:

23 . If a package of hazardous materials is not large enough to hold a label, it should be labeled:

24 . When transporting hazardous materials, placards:

See the exact questions that will be on the 2025 DMV exam.

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