HAZMAT CDL PRACTICE TEST - WISCONSIN
21.
When going down grades, you should:
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rely solely on engine braking to reduce your speed.
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put the transmission in Neutral.
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shift up.
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downshift to a lower gear.
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22.
Which of the following could cause poisonous carbon monoxide to enter the cab?
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Lack of engine oil
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Lack of engine coolant
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Wrong type of fuel
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Exhaust system leaks
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23.
In mountain driving, to select a safe speed you should:
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select a speed that's not too fast for the weight of your vehicle and cargo, the length and steepness of the grade, and road and weather conditions.
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go slightly faster than the speed limit.
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go 5 mph slower than the vehicle ahead.
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follow the vehicle in front of you.
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24.
Placards are used to:
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to give people something interesting to look at while they drive.
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warn others of hazardous
materials.
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force other drivers to change lane.
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warn motorcyclists to drive in another lane.
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25.
Improperly placarded vehicles can only be moved:
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by their owner.
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at night.
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during an emergency.
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in the daytime.
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26.
Confused drivers may:
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stop without warning.
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change lanes for no apparent reason.
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change direction suddenly.
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All of the above.
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27.
Which of the following is NOT correct? Anti-lock brakes:
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help drivers avoid wheel lock up.
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help drivers avoid skids caused by over braking.
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give drivers more control over the vehicle during braking.
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require drivers to apply the brakes as hard as they can without locking the wheels.
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28.
If your vehicle does not have racks to hold cylinders of compressed gas, the cylinders must be:
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bundled together with steel strapping.
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less than half of the cargo.
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held upside down.
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held upright.
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29.
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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30.
When crossing railroad tracks, you should:
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stay in your lane.
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apply the parking brakes.
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shift gears while crossing the tracks.
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stop on the tracks.
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