CDL HAZMAT PRACTICE TEST OKLAHOMA
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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 Oklahoma hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The OK CDL hazmat test covers the information found in the Oklahoma 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!
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1.
Hazardous materials can be recognized by looking at the container's:
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color.
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label.
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type.
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2.
Improperly placarded vehicles can only be moved:
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during an emergency.
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by their owner.
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at night.
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3.
If hazardous materials are spilling from your vehicle while you are driving, after parking the vehicle do NOT:
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stay there.
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try to find the source of the leak by smell.
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secure the area.
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4.
While crossing railroad tracks, you should:
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not shift gears.
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shift down.
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shift up.
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5.
A driver distraction is anything that takes your attention away from driving, such as:
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adjusting the radio.
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pedestrians.
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All of the above.
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6.
If you are being tailgated, you should:
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speed up.
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drive on the shoulder.
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try to let the other vehicle pass.
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7.
You are transporting hazarous materials. During your en-route inspection, you find an overheated tire. What should you do?
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remove the tire and place it a safe distance from your vehicle.
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wait at least 30 minutes before continuing your trip.
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use water to cool the tire, then check it every 50 miles.
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8.
A hazard class name or ID number may not be used to describe:
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a non-hazardous substance.
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a reportable quantity of a hazardous material.
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hazardous waste.
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9.
When stopping you should push the brake pedal down:
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gradually.
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repeatedly.
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quickly.
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10.
If your tires are hot, you should NOT:
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drive until you correct the cause of the overheating.
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let air out of the tires so the pressure goes back to normal.
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stop to let the tires cool down.
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OK CDL Hazmat Test
| Number of questions: | 30 |
| Correct answers to pass: | 24 |
| Passing score: | 80% |
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