OK CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
21.
The air compressor is connected to:
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the radiator.
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the transmission.
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the engine.
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22.
If you are driving in fog, you should not:
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slow down.
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use high beams.
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turn on the 4-way emergency flashers.
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23.
To release the parking brakes:
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pull the parking brake control knob out.
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push the parking brake control knob in.
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pump the brake pedal 3 times.
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24.
Which of the following can cause vehicle fires?
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Short circuits and loose connections
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Improper fueling
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All of the above.
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25.
The amount of liquid to load into a tank depends on:
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the amount the liquid will expand in transit.
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the weight of the liquid.
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All of the above.
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26.
Escape ramps:
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can only be used by trucks or passenger vehicles.
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have been built to stop runaway vehicles on steep downgrades.
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are used to safely leave the highway.
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27.
To control your speed on a downgrade, you should:
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use engine braking.
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use controlled braking.
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fully apply the brakes.
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28.
With an engine fire, you should NOT:
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open the hood.
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shoot foam from the vehicle’s underside.
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turn the engine off as soon as possible.
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29.
You should avoid driving through flowing water of deep puddles if possible. If not, you should:
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press the accelerator and increase the engine and gear speed to the rpm required by road conditions.
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gently apply the brakes, increase engine rpm and cross the water while keeping light pressure on the brakes.
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set out reflective triangles to warn other traffic.
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30.
If you see a cardboard box ahead in your lane, you should:
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stop, get out of your vehicle, and pull the box off of the road before driving on.
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avoid it without making sudden, unsafe moves.
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slow down to a crawl, inch your vehicle forward and attempt to nudge the box out of your way.
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