OR CDL HAZMAT 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 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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The amount of all hazardous materials of all classes on your vehicle.
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22.
When crossing railroad tracks, you should:
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apply the parking brakes.
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stay in your lane.
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stop on the tracks.
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shift gears while crossing the tracks.
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23.
Before loading or unloading any flammable liquids, you should:
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turn on the headlights.
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light up a cigarette.
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turn off the engine.
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start the engine.
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24.
Nitric acid should:
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piled up high with heavy cargo on top.
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loaded above other products.
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not be loaded above any other product.
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stacked to the ceiling.
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25.
When more cargo is piled up in a truck, the center of gravity moves:
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closer to the ground.
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to the left side of the truck.
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higher up from the road.
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to the right side of the truck.
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26.
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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call your supervisor.
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stop and remain stopped until the tires cool off.
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let air out of the tires to decrease pressure.
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27.
If your placarded trailer has dual tires, you should check the tires:
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once every 3 months.
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once every 100 miles.
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at the start of each trip and every time you stop.
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once every three hours.
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28.
Shipping papers must include:
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the price of the hazardous materials.
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an emergency response telephone number.
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what the materials will be used for.
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All of the above.
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29.
If hazardous materials are spilling from your vehicle while you are driving:
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park the vehicle, secure the area and send someone else for help.
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touch the leaking material to make sure it's not water.
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try to find the source of the leak by smell.
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continue driving in order to find a truck stop, phone booth or help.
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30.
When you are out of the vehicle, you must keep shipping papers related to hazardous materials:
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in a locked glove compartment.
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on the driver's seat.
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in a pouch on the driver's door.
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None of the above.
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