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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 Delaware hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The DE CDL hazmat test covers the information found in the Delaware 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. Which of the following is NOT true?
ABS will change the way you normally brake.
ABS won't compensate for poor brake maintenance.
ABS only comes into play when a wheel would have locked up because of over braking.
ABS won't compensate for bad brakes.
2. Which of the following statements about retarders is NOT correct?
Retarders help slow a vehicle, reducing the need for using brakes.
Retarders reduce reduce brake wear.
Retarders help you avoid skids.
You should turn the retarder off whenever the road is wet, icy, or snow covered.
3. Hazardous materials can be recognized by looking at the container's:
4. Before each trip, you must make sure:
your cargo obscures your view to the sides.
the cargo has a high center of gravity.
the truck is overloaded.
the cargo is balanced and secured.
5. Weight that is loaded so there is a high center of gravity:
makes a vehicle easier to handle.
reduces the chance that the load will shift to the side or fall off.
causes greater chance of rollover.
All of the above.
6. If your tires are hot, you should NOT:
let air out of the tires so the pressure goes back to normal.
once the tires have cooled down, make another stop to check the tires.
drive until you correct the cause of the overheating.
stop to let the tires cool down.
7. Class 8 hazardous materials include:
Flammable solids
Explosive materials
8. When your drive wheels have poor traction, you should:
only use the retarder on the front wheels.
turn the retarder on.
turn the retarder off.
only use the retarder on the rear wheels.
9. When a tire fails, you should:
push the brake pedal down gradually.
stay off the brake.
brake in a way that will keep your vehicle in a straight line.
apply the brakes as hard as you can without locking the wheels.
10. If HazMat is spilling from your vehicle while you are driving, you should:
continue driving in order to find a truck stop.
get out of the vehicle and try to identify the source of the leak by smell.
not move your vehicle any more than safety requires.
continue driving in order to find a phone booth.
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DE CDL Hazmat Test

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