MD CDL HAZMAT PRACTICE TEST
21.
Which of the following hazard classes should NOT be placed into a temperature-controlled trailer?
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Classes 1, 3, and 5.1
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Classes 1, 3, and 4
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Classes 1, 4, and 5
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Classes 1, 2.1, and 3
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22.
Rough acceleration can cause:
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damage electrical and brake lines.
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tire damage.
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mechanical damage.
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All of the above.
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23.
One way to prevent hydroplaning is to:
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have less than 4/32 inch tread depth in every major groove on front tires.
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make sure you have enough tread on your tires.
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take curves at higher speeds.
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use the controlled braking method.
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24.
If the diamond-shaped hazard warning label won't fit on a package, shippers may label the hazardous materials:
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with a tag.
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by placing the package in a hazmat container.
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using a bar code instead.
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All of the above.
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25.
The Emergency Response Guidebook (ERG):
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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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is a guidebook for emergency personnel on how to protect themselves and the public from hazardous materials.
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All of the above.
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26.
Most heavy vehicles require ________ change gears.
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triple shifting
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single clutching
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double shifting
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double clutching
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27.
If your placarded trailer has dual tires, you should check the tires:
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once every 24 hours.
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at the beginning of each trip and each time the vehicle is parked.
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once every hundred miles.
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once a year.
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28.
Before unloading explosive materials, you should:
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turn your engine off.
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keep the engine running.
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connect heater power sources.
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use hooks or other metal tools if possible.
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29.
Do not smoke within ______ of a placarded cargo tank used for explosives, flammable liquids or flammable solids.
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25 feet
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100 feet
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12 feet
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50 feet
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30.
When confronted by an aggressive driver, you should:
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call the police, if you have a cell phone and can do it safely.
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make every attempt to get out of their way.
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avoid eye contact.
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All of the above.
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