CDL HAZMAT PRACTICE TEST OREGON
21.
Why should you check your mirrors regularly to know where other vehicles are around you?
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To know whether you can make a quick lane change in an emergency.
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To flash the brake lights if you are being tailgated.
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To better assess your own speed.
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To move out of their way if they want to get past.
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22.
Weight that is loaded so there is a high center of gravity:
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causes greater chance of rollover.
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reduces the chance that the load will shift to the side or fall off.
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makes a vehicle easier to handle.
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All of the above.
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23.
What should you do if your vehicle starts hydroplaning?
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Leave the road completely.
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Release the accelerator and push in the clutch to let the wheels turn freely.
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Apply the brakes and countersteer to regain control of the vehicle.
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Accelerate slightly, then push in the clutch to slow down.
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24.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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right; right
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left; right
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right; left
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left; left
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25.
You are transporting hazarous materials. During your en-route inspection, you find an overheated tire. What should you do?
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use water to cool the tire, then check it every 50 miles.
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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 30 minutes before continuing your trip.
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None of the above.
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26.
With low beams, drivers can see ahead about:
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100 feet
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250 feet
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15 feet
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150 feet
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27.
You or your employer must call the National Response Center when any of the following occur as a direct result of a HazMat incident, EXCEPT:
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a person is killed.
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an injured person requires hospitalization.
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spillage occurs.
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black ice makes the road look wet.
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28.
If your vehicle does not have racks to hold cylinders of compressed gas, the cylinders must be:
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held upright.
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bundled together with steel strapping.
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less than half of the cargo.
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held upside down.
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29.
Placards are:
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used to warn others when the Gross Vehicle Weight (GVW) exceeds 10,000 pounds.
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signs put on the inside of a vehicle that remind the driver of the type of cargo he or she is carrying.
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signs put on the outside of a vehicle that identify the hazard class of the cargo.
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signs that warn others to stay at least 500 feet away from the vehicle.
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30.
Which of the following hazard classes should NOT be placed into a temperature-controlled trailer?
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Classes 1, 4, and 5
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Classes 1, 3, and 5.1
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Classes 1, 2.1, and 3
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Classes 1, 3, and 4
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