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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 Rhode Island hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The RI CDL hazmat test covers the information found in the Rhode Island 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 statements about retarders is NOT correct?
Retarders help you avoid skids.
Retarders help slow a vehicle, reducing the need for using brakes.
You should turn the retarder off whenever the road is wet, icy, or snow covered.
2. Overloading can have bad effects on all of the following except:
Exhaust system
3. If you are at the scene of an incident involving hazardous materials, you should:
keep people far away and upwind.
write description of the scene on the shipping paper.
avoid warn others of the danger as this could caus a panic attack.
4. When driving in heavy traffic, the safest speed is:
slower than the other vehicles.
faster than the other vehicles.
the same speed as the other vehicles.
5. If your vehicle is placarded, you must stop before a railroad crossing.  You must stop _______ before the nearest rail.
15 to 50 feet
5 to 25 feet
25 to 75 feet
6. Placards must be placed:
less than 3 inches away from any other markings.
so the words or numbers are read from left to right.
so that the format, color, and message can only be seen by the driver.
7. If you have a HazMat endorsement and renounce your U.S. citizenship:
you may keep your endorsement until your next license renewal date.
you will lose your HazMat endorsement.
you may transfer your endorsement to a trusted U.S. citizen.
8. Never transport Division 1.1 or 1.2 in vehicle combinations if:
the other vehicle in the combination contains initiating explosives.
there is a marked or placarded cargo tank in the combination.
All of the above.
9. For a cargo fire in a box trailer, you should:
open the doors immediately and use the fire extinguisher.
wait 10 minutes before opening the doors.
keep the doors shut.
10. One way to prevent hydroplaning is to:
make sure you have enough tread on your tires.
take curves at higher speeds.
have less than 4/32 inch tread depth in every major groove on front tires.
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CDL Hazmat Test RI

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