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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 driving in construction areas you should:
decrease your speed.
stop driving as soon as you can safely do so.
reduce speed to a crawl.
increase your speed.
2. Rough acceleration can cause:
tire damage.
damage electrical and brake lines.
mechanical damage.
All of the above.
3. Nitric acid should:
loaded above other products.
not be loaded above any other product.
piled up high with heavy cargo on top.
stacked to the ceiling.
4. If you get stuck on the railroad tracks, the first thing you should do is:
try to move your vehicle until you see the train.
immediately get out of the cab and move away from the tracks.
stay in your vehicle and call 911.
scream for help.
5. To obtain the HazMat endorsement, you must pass a ________ background check.
Federal Bureau of Investigation
Local Department of Security
Transportation Security Administration
Law Enfrocement Agency
6. If hazardous materials are spilling from your vehicle while you are driving:
park the vehicle, secure the area and send someone else for help.
touch the leaking material to make sure it's not water.
try to find the source of the leak by smell.
continue driving in order to find a truck stop, phone booth or help.
7. The two main places on which the hazardous materials identification number must appear are:
the shipping paper and the package
the shipping paper and the driver's ID.
the gas tank and the right side of the truck.
the license plate and the package.
8. Placards are:
signs put on the inside of a vehicle that remind the driver of the type of cargo he or she is carrying.
signs put on the outside of a vehicle that identify the hazard class of the cargo.
used to warn others when the Gross Vehicle Weight (GVW) exceeds 10,000 pounds.
signs that warn others to stay at least 500 feet away from the vehicle.
9. A placarded vehicle must have at least ___ identical placards.
10. You are driving a vehicle with air brakes when the low air pressure warning light and buzzer come on. You should:
activate your hazard lights and drive to the nearest place where you can stop.
slow down and test your brakes.
pull off the road and stop immediately.
apply the brakes as hard as you can.
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CDL Hazmat Test TX

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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