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Any driver, regardless of the vehicle Class, who wants to haul hazardous materials, must add an “H” endorsement to their CDL. In order to obtain the Hazmat endorsement drivers are required to pass a Transportation Security Administration background check and a knowledge test. The Wyoming hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The WY CDL hazmat test covers the information found in the Wyoming CDL Manual. Study the chapter covering hazardous materials to learn how to recognize, handle, and transport Hazmat, then take this practice test to prepare for your exam!
1. What factors can cause brakes to fade?
Dirt roads and in unpaved yards.
Slippery surfaces and shaded areas.
Excessive heat and brakes out of adjustment.
Gravel and tar.
2. When should you downshift automatic transmissions?
When you start to get drowsy.
When going down steep grades.
Watch your tachometer, and downshift when your engine reaches the top of the range.
When you want to go faster.
3. The total transport index of all packages in a single vehicle must not exceed:
4. The basic description of hazardous materials does NOT include:
the name of the hazardous materials in italics.
ID number.
hazard class or division.
All of the above.
5. In the Hazardous Material Table, what is in Column 3?
The hazard class or division
The HazMat shipping name
The HazMat description
The special provisions of the material
6. Passive railroad crossings:
do not require you to recognize the crossing.
require drivers to decide if there is sufficient clear space to cross safely.
have a traffic control device installed at the crossing to regulate traffic.
All of the above.
7. Shipping papers should be:
easily seen from the direction they face.
easily seen by someone entering the cab.
placed in the passenger compartment.
placed on all sides of the vehicle.
8. When going down grades, you should:
downshift to a lower gear.
put the transmission in Neutral.
shift up.
rely solely on engine braking to reduce your speed.
9. A placarded vehicle must have a fire extinguisher with a rating of:
5 A:B or more
10 B:C or more
5 B:C or more
10 A:B or more
10. An "X" or an "RQ" in the HM column of the shipping paper entry means that:
the driver must receive a special HR training before driving the vehicle.
the materials listed on that line of the shipping paper must be loaded so there is a high center of gravity.
the shipment is regulated by the Hazardous Materials Regulations (HMR).
the hazardous materials listed on that line of the shipping paper must be sealed.
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WY CDL Hazmat Test

Number of questions: 30
Correct answers to pass:24
Passing score:80%
Number of questions: 30
Correct answers to pass:24
Passing score:80%
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