MAINE CDL TANKER PRACTICE TEST
11.
When fueling a vehicle containing hazardous materials, you should:
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leave the engine on.
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turn off the engine.
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leave the nozzle unattended.
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12.
A placarded vehicle must have at least ___ identical placards.
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2
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3
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4
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13.
A full tank of dense liquid (such as some acids) may:
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weigh less than a tank filled with other liquids.
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exceed legal weight limits.
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be subject to travel restrictions.
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14.
Carrying liquids or gases in a leaking tank:
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should be avoided whenever possible.
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should only be done for shorter trips.
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is illegal.
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15.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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hold compressed air.
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keep from rolling back.
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prevent movement of cargo.
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16.
What is the main difference between portable tanks and cargo tanks?
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Portable tanks are not permanently attached to a vehicle.
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The product is loaded or unloaded while the portable tanks are off the vehicle.
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All of the above.
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17.
If you are feeling sleepy, you should:
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pull off the road and rest.
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slow down.
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get some coffee.
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18.
Emergency equipment is:
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optional.
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only required when transporting hazardous materials.
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required.
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19.
Dual tires:
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should come in contact with each other whenever possible.
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should always come in contact with each other.
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should not come in contact with each other.
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20.
Most heavy-duty vehicles use:
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air brakes.
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hydraulic brakes.
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solid brakes.
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