HI CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
You must have at least ________ tread depth in every major groove on front tires.
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1/16 inch
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4/32 inch
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1/2 inch
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32.
Which of the following is NOT a common cause of vehicle fires?
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Flammable cargo
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Headlights out of adjustment
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Broken fuel pipe
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33.
Reaction distance is the distance you will continue to travel, in ideal conditions:
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from the time your eyes see a hazard until your brain recognizes it.
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before the vehicle comes to a complete stop.
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before you physically hit the brakes.
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34.
Which of the following is not a braking system on a truck?
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Steering brake
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Service brake
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Parking brake
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35.
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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36.
You need to pay special attention to the space below your vehicle:
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on dirt roads.
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in school zones.
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on multi-lane roads.
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37.
What are the two basic reasons for covering cargo?
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To protect people from spilled cargo and the cargo from pilferage.
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To protect people from spilled cargo and the cargo from weather.
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To protect the cargo from weather and to avoid littering.
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38.
Before entering a curve, drivers should:
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downshift to the right gear.
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speed up.
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drive on the shoulder.
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39.
When the temperature drops, which of the following surfaces will become icy first?
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Curves
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Off-ramps
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Bridges
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40.
Texting while operating a commercial motor vehicle is:
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acceptable if you are contacting your supervisor.
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acceptable if you are contacting your dispacther.
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illegal.
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