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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 Missouri hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The MO CDL hazmat test covers the information found in the Missouri 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.
Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
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Repaving of the road
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Rain
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The weight of a cargo
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2.
When driving in extremely hot weather, if the air pressure in the tires is too high, you should:
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continue driving.
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let air out of the tires to decrease pressure.
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stop and remain stopped until the tires cool off.
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3.
A vehicle inspection should be done:
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differently each time, so you are less likely to forget something.
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once every month.
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the same way each time so you are less likely to forget something.
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4.
If you're carrying hazardous materials and are stopped at a truck stop, you should:
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leave the shipping papers in the driver’s door pouch or on the driver’s seat.
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leave the shipping papers on the dashboard in clear view.
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keep the shipping papers with you.
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5.
When checking the lights before driving:
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you should turn off the engine.
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make sure the parking brake is not set.
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you should check them from inside the vehicle.
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6.
If the drive wheels start to skid:
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accelerate slightly to regain control.
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use the brakes to slow down.
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push in the clutch to let them turn freely.
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7.
The power unit of placarded vehicles must have a fire extinguisher with a UL rating of _______ or more.
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15 B:C
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10 B:C
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10 A:B
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8.
To avoid rollbacks when you start, you should:
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if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
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release the parking brake only when you have applied enough engine power.
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All of the above.
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9.
What should you do if you doubt you have safe space to pass under a low bridge?
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Go slowly, and take another route if you are not sure you can make it.
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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Increase the weight of your vehicle to clearing under the bridge.
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10.
When you use your mirrors while driving on the road, you should:
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avoid checking them regularly.
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only use the driver's side mirror.
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check them quickly.
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