CDL TANKER PRACTICE TEST - DISTRICT OF COLUMBIA
11.
Which of the following will NOT help you prevent rollover?
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Using the controlled braking method.
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Keeping the cargo as close to the ground as possible.
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Driving slowly around turns.
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All of the above.
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12.
The heavier the vehicle:
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the less work the brakes must do to stop it.
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the more work the brakes must do to stop it.
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the higher the center of gravity will be.
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None of the above.
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13.
If the vehicle ahead of you is smaller than yours:
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it will usually take longer to stop.
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it will take the same amount of time to stop.
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it can probably stop faster than you can.
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All of the above.
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14.
In vehicles with air brakes, the two markings on a front brake limiting valve are:
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normal and slippery.
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wet and dry.
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high and low.
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left and right.
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15.
Which of the following is true? If a HazMat is a Poison Inhalation Hazard:
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a POISON INHALATION HAZARD placard must always be displayed even for small amounts.
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a POISON INHALATION HAZARD placard must be used in addition to other placards.
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the material will have special requirements for shipping papers.
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All of the above.
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16.
Liquid surge occurs:
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in full tanks.
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if you are caught in strong winds.
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in partially filled tanks.
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in empty tanks.
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17.
If your trailer starts to skid, you should:
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lock the brakes.
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steer in the opposite direction.
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pump the brakes.
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release the brakes.
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18.
If you are feeling sleepy, you should:
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drive faster.
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slow down.
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get some coffee.
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pull off the road and rest.
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19.
If there is a fire in your vehicle, do NOT:
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park in an open area.
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notify emergency services.
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pull into a service station.
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park away from buildings and other vehicles.
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20.
Retarders:
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reduce the danger of slipping.
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help slow a vehicle, reducing the need for using brakes.
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reduce braking distance.
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improve gas mileage.
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