CDL PRACTICE TEST (WI) - GENERAL KNOWLEDGE TEST
21.
You should use your horn to:
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to let others know you are about to increase your speed.
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to let others know you are there.
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to let others know you are an experienced driver.
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to let others know you are about to break.
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22.
What should you do if your brakes fail while driving downhill, and no escape ramp is available?
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use your parking brake to stop.
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take the least hazardous escape route you can - and make the move as soon as possible.
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call for assistance before you get out of your vehicle.
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wait until you can find an escape ramp.
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23.
Blocking is used to:
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protect the cargo from weather.
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protect people from spilled cargo.
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keep the cargo from sliding.
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All of the above.
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24.
When driving on slippery roads, you should NOT:
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use the speed retarder.
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brake any harder than necessary.
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pass slower vehicles unless necessary.
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All of the above.
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25.
Class 1 hazardous materials include:
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Explosives
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Flammable solids
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Radioactive materials
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Flammable liquids
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26.
When driving at night, to avoid glare from oncoming vehicles you should:
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put your own high beams on when other drivers do not put their low beams on.
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look slightly to the right at a right lane or edge marking.
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look directly at lights of oncoming vehicles.
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wear sunglasses.
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27.
You should use your four-way emergency flashers:
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when driving at night.
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while crossing railroad tracks.
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when parked at the side of the road.
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None of the above.
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28.
Which of the following is not a type of retarder?
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Pressure
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Electric
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Hydraulic
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Exhaust
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29.
Which of these statements is NOT true?
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Alcohol doesn't affects judgment and self-control.
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The liver can only process ⅓ an ounce of alcohol per hour.
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BAC measures the amount of alcohol in your body.
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BAC is determined by the amount of alcohol you drink, how fast you drink, and your weight.
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30.
Which of the following is NOT one of the four basic skills required to operate a commercial motor vehicle?
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Backing safely
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Accelerating
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First-aid certification
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Steering
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