OKLAHOMA CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
To keep your vehicle from rolling back when you start, you should:
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turn the engine off before you take your foot off the brake.
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apply the emergency brake whenever necessary.
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partly engage the clutch before you take your foot off the brake.
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32.
To prevent drowsiness before a trip, drivers should:
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drive alone.
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prepare the route carefully, including stopping points.
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get at least 5 hours of sleep.
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33.
Nitric acid should:
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loaded above other products.
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not be loaded above any other product.
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stacked to the ceiling.
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34.
To avoid a crash:
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stopping is always the safest thing to do.
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stopping is not always the best thing to do.
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swerving is always the worst thing to do.
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35.
The heavier the vehicle:
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the less work the brakes must do to stop it.
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the higher the center of gravity will be.
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the more work the brakes must do to stop it.
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36.
Retarders:
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help to increase brake pressure.
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improve traction.
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can be noisy and may not be permitted everywhere.
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37.
What is a "header board"?
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The back door of the cargo compartment.
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Another term for the brake camshaft.
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A safety device that protects you from your cargo in case of an accident.
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38.
If you must make a quick stop to avoid an accident, you should:
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increase your stopping distance.
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use controlled or stab braking.
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jam on the brakes to keep your vehicle in a straight line.
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39.
Which of the following is a common cause of truck fires?
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Short circuits due to loose connections.
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Under-inflated tires and duals that touch.
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All of the above.
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40.
If your tires are hot, you should NOT:
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let air out of the tires so the pressure goes back to normal.
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drive until you correct the cause of the overheating.
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stop to let the tires cool down.
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