DE CDL HAZMAT TEST - PRACTICE TEST
21.
Which of the following is NOT something you must know in order to determine if you need to use placards?
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The amount of all hazardous materials of all classes on your vehicle.
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The amount of hazardous material being shipped.
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The manufacturing date of the materials.
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The material's hazard class.
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22.
You are driving a modern truck with a manual transmission. When going down a hill you should usually:
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use a lower gear than would be required to go up the hill.
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shift into neutral and coast.
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use the same gear you would use to go up the hill.
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downshift after your
speed has already built up.
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23.
The posted speed limit:
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may only be exceeded when driving in rural areas.
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is only a suggestion.
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should never be exceeded.
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should only be exceeded when passing other vehicles.
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24.
The Emergency Response Guidebook (ERG):
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is a guidebook for emergency personnel on how to protect themselves and the public from hazardous materials.
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is used nationwide because it was created by the US Department of Transportation.
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is indexed by the proper hazardous material shipping name and ID number.
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All of the above.
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25.
If your brakes fail on a steep mountain downgrade, you should:
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leave the road immediately.
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use an escape ramp if it is available.
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change lanes after making sure there is enough room.
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go right if the shoulder is clear.
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26.
During an en route inspection, you discover an overheated tire. You must:
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lower the tires air pressure by at least 15 psi.
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Safely remove the tire and place it at a safe distance from your vehicle.
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wait at least one hour before continuing your trip.
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cool the tire and wait at least two hours before continuing your trip.
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27.
Which of the following statements about backing heavy vehicles is true?
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You should avoid backing whenever you can.
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Back to the right side so that you can see better.
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The helper should stand where you cannot see the helper.
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Always back as quickly as possible.
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28.
When should you downshift automatic transmissions?
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When you want to go faster.
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When going down steep grades.
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When you start to get drowsy.
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Watch your tachometer, and downshift when your engine reaches the top of the range.
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29.
Which of the following could cause poisonous carbon monoxide to enter the cab?
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Lack of engine coolant
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Lack of engine oil
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Exhaust system leaks
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Wrong type of fuel
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30.
Column 2 in the Hazardous Material Table contains:
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the HazMat description and shipping name.
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the hazard class or division.
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the label codes.
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the identification numbers.
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