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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 Minnesota hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The MN CDL hazmat test covers the information found in the Minnesota 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. A material’s hazard class reflects:
the methods for handling spills or leaks in the absence of fires.
the emergency response information related to the material.
the risks associated with the material.
the type of packaging required to transport the material.
2. An "X" or an "RQ" in the HM column of the shipping paper entry means that:
the driver must receive a special HR training before driving the vehicle.
the hazardous materials listed on that line of the shipping paper must be sealed.
the shipment is regulated by the Hazardous Materials Regulations (HMR).
the materials listed on that line of the shipping paper must be loaded so there is a high center of gravity.
3. Which of the following is a common cause of truck fires?
Short circuits due to loose connections.
loose fuel connections.
Under-inflated tires and duals that touch.
All of the above.
4. When stopping you should push the brake pedal down:
as hard as you can.
5. Which of these statements about using your mirrors is FALSE?
You should use your mirrors to spot overtaking vehicles.
When driving, you should check mirrors regularly to know where other vehicles are around you.
There are blind spots that your mirrors cannot show you.
None of the above.
6. Brake fade results from, and is affected by:
excessive heat caused by using the brakes too much.
brakes out of adjustment.
excessive heat caused by not relying on the engine braking effect.
All of the above.
7. If your vehicle is placarded, carries any amount of chlorine or has cargo tanks used for hazardous materials, you must stop _______ feet before the nearest railroad track.
50 to 100
100 to 200
15 to 50
5 to 15
8. To find out if a shipment includes hazardous materials, you should:
look for a hazardous material spill.
look at the shipping papers.
carefully inspect every package and container.
Turn your engine off, then check the cargo.
9. Which of the following is NOT something you must know in order to determine if you need to use placards?
The manufacturing date of the materials.
The material's hazard class.
The amount of hazardous material being shipped.
The amount of all hazardous materials of all classes on your vehicle.
10. Placards are used:
to warn others of hazardous materials.
to warn other drivers about the risks of tailgating.
to protect the accident area.
to warn other drivers when the load on the vehicle extends 4 feet or more beyond the rear of the body.
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MN CDL Hazmat Test

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