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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 Mississippi hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The MS CDL hazmat test covers the information found in the Mississippi 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. If corrosive materials leak during transportation, the parts of the vehicle exposed to corrosives must:
be washed with acid.
be washed with oil.
be left to air dry.
be washed with water.
2. Passive railroad crossings:
have a traffic control device installed at the crossing to regulate traffic.
require drivers to decide if there is sufficient clear space to cross safely.
do not require you to recognize the crossing.
All of the above.
3. What should you do if your vehicle starts hydroplaning?
Apply the brakes and countersteer to regain control of the vehicle.
Leave the road completely.
Accelerate slightly, then push in the clutch to slow down.
Release the accelerator and push in the clutch to let the wheels turn freely.
4. When crossing railroad tracks, you should:
stay in your lane.
stop on the tracks.
shift gears while crossing the tracks.
apply the parking brakes.
5. The tire load rating is stated:
on the dashboard.
on the side of each tire.
inside the suspension system.
on each axle.
6. Which of the following statements is true?
Carrying a properly charged and rated fire extinguisher will help prevent fires.
Poor cargo ventilation is a common cause of fire.
There is no way that short circuits due to damaged insulation can cause a vehicle fire.
Under-inflated tires will NOT cause a vehicle fire.
7. The Emergency Response Guidebook (ERG):
is indexed by the proper hazardous material shipping name and ID number.
is a guidebook for emergency personnel on how to protect themselves and the public from hazardous materials.
is used nationwide because it was created by the US Department of Transportation.
All of the above.
8. To transport hazardous materials, drivers need:
a CDL license with a tank endorsement.
a CDL license only.
a CDL license with hazardous material endorsement.
a license to operate their personal vehicle.
9. If your placarded trailer has dual tires, you should check the tires:
at the start of each trip and every time you stop.
once every 3 months.
once every 100 miles.
once every three hours.
10. If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials must be:
listed at the bottom.
highlighted in a contrasting color.
listed in yellow ink.
in the same color as the non-hazardous materials.
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CDL Hazmat Test MS

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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