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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 Texas hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The TX CDL hazmat test covers the information found in the Texas 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. When conducting a pre-trip inspection:
the vehicle inspection report should not be reviewed unless your supervisor tells you to do so.
the inspection report should only be reviewed if you will be carrying passengers.
you should review the last vehicle inspection report.
None of the above.
2. Most heavy-duty vehicles use:
hydraulic brakes.
solid brakes.
pressure brakes.
air brakes.
3. To know if your vehicle is equipped with ABS, look for:
the ABS logo on the steering wheel.
a yellow ABS malfunction lamps on the instrument panel.
the ABS shipping paper.
an ABS placard.
4. While crossing railroad tracks, you should:
shift up.
shift down.
not shift gears.
stop, then look and listen for the train.
5. The shipper must certify on the shipping paper:
that the shipment has been prepared according to the rules.
that the package is safe.
that the package contains hazardous materials.
Al of the above.
6. At a rest area, you discover your hazardous materials shipments is leaking. There is no phone around. You should:
never park your vehicle.
continue driving in order to find a phone.
keep driving slowly until you reach a truck stop.
send someone else for help and give that person all of the necessary information.
7. Empty trucks have the best braking. True or False?
It depends on the cargo.
It depends on the truck.
8. When transporting hazardous materials, you, as a driver, are responsible for:
marking containers of hazardous material with the material’s name, ID number, and hazard label.
refusing leaking packages and shipments.
reporting incidents and accidents involving hazardous materials to the proper government agency.
certifying on the shipping paper that the shipment has been prepared according to the rules.
9. When more cargo is piled up in a truck, the center of gravity moves:
higher up from the road.
to the right side of the truck.
closer to the ground.
to the left side of the truck.
10. What is a safe haven?
A place where hazardous materials can be safely dumped.
The place where commercial drivers convicted for DUI must attend a one-week special driver education course.
An approved place for parking unattended vehicles loaded with explosives.
The storage container tank where hazardous materials must be stored.
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TX CDL Hazmat Test

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