CDL GENERAL KNOWLEDGE TEST (WA) - PRACTICE TEST
21.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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one of the tires has gone flat.
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the brakes have failed.
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you need to shift up.
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22.
Which of the following vehicles is most likely to turn over?
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65 ft. conventional double
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3 axle tractor semitrailer
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Triple trailer
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23.
When checking the engine compartment:
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the parking brake should be on.
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you should put the gearshift in neutral.
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wheels should not be chocked.
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24.
To prevent fatigue during long trips you should:
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rely on caffeine.
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take frequent breaks.
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take a cold shower.
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25.
Which of the following statements about slippery roads is true?
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The road will freeze before bridges will.
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Shady parts of the road provide better traction than open areas.
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None of the above.
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26.
Black ice is:
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a thin layer of ice clear enough that you can see the road underneath it.
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dirty snow.
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wet ice.
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27.
Strong winds can make it difficult to stay in your lane especially when driving:
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heavier vehicles.
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lighter vehicles.
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vehicles with ABS.
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28.
Which of the following is most likely to get stuck on raised railroad crossings?
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A single-axle tractor pulling a small trailer
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A low slung unit
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A single-axle tractor with no trailer
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29.
Why should you check your mirrors regularly to know where other vehicles are around you?
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To know whether you can make a quick lane change in an emergency.
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To flash the brake lights if you are being tailgated.
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To move out of their way if they want to get past.
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30.
The liver can only process ______ of alcohol per hour, much ____ than the alcohol in a standard drink.
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1/3 an ounce; less
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one ounce; less
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1/8 an ounce; more
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