Colorado DMV CDL HazMat Quick Practice Test

Colorado DMV CDL HazMat Quick Practice Test For 2025

CDL Class A, B or C. Complete CDL driver training course. All the questions in this test are from the official DMV written exam. You can use our free online tests to evaluate how likely you are to pass the official DMV test. Or you can just cut to the chase and increase your chances of passing by upgrading to Premium Membership and unlock official DMV tests. In addition, you will also receive a master cheat sheet which contains all your state’s DMV questions and answers. Premium membership also unlocks a smart tracker which keeps an inventory of all incorrectly answered questions for easy, fast and effective revision. Practice with our free tests or hit Upgrade button below for premium access and increase your chances of passing your DMV written exam.

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Quick Facts:

Number of Questions – 20

Passing Percentage – 80%

Test Type – Free Test

1. If corrosive materials leak in a trailer, the trailer should be:

Cleaned with acid.
Cleaned with water.
Left to air dry without washing.

2. A Class 7 hazardous material is:

Explosive.
Flammable.
Radioactive.
Corrosive.

3. When performing the stop/start maneuver as a part of the skills test, you should:

Cut off other vehicles if needed to get onto the shoulder.
Not use any turn signals.
Slam on the brakes to stop as quickly as possible.
Decelerate smoothly.

4. When checking the engine compartment:

The parking brake should not be engaged.
Wheels should be chocked.
The engine should be running.
The gearshift should be in first gear.

5. During a vehicle inspection, be sure that:

The emergency exits are difficult to open.
The emergency exit warning devices work properly.
The emergency exits squeak.
The emergency exits are not accessible from inside the cab.

6. Which of the following is not a list to search to determine if an item is a hazardous material?

The Hazardous Materials Table (Title 49, CFR, §172.101)
The List of Hazardous Substances and Reportable Quantities
The Periodic Table of Elements

7. If your vehicle is equipped with a cargo lift, you should ensure that:

The lift is loosely attached.
The lift is not leaking.
The lift is fully extended.
The lift is the proper color.

8. When driving through a curve during the skills test, you should:

Veer from your lane if needed to complete the curve.
Reduce your speed after entering the curve.
Refrain from looking for other vehicles while turning.
Reduce your speed before entering the curve.

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