CDL GENERAL KNOWLEDGE TEST (OREGON) - PRACTICE TEST
21.
Blocking and bracing are:
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driving techniques used to regain control when your drive wheels start to skid.
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coupling devices used to connect the service air lines from the truck or tractor to the trailer.
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used to keep cargo from sliding and to prevent movement of cargo.
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None of the above.
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22.
When backing a truck you should:
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get out and walk around the vehicle before you begin to back.
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always rely on your mirrors.
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back and turn toward the right side.
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look straight ahead.
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23.
To check the automatic transmission fluid:
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you must go down grades.
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the wheel nuts must be loose.
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the engine may have to be running.
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you should turn the engine off.
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24.
Commercial motor vehicles:
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are only required to have a fire extinguisher when transporting hazardous materials.
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are not required to have a fire extinguisher if they already have reflective warning triangles and other emergency equipment.
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should have a properly charged and rated fire extinguisher and other emergency equipment.
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None of the above.
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25.
When checking your mirrors you should:
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not make regular checks.
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use both mirrors.
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only use the passenger side mirror.
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only use the driver side mirror.
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26.
Antilock brakes:
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let you drive faster.
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decrease your stopping distance.
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help you stop faster.
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None of the above.
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27.
Before entering a curve, you should:
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maintain your speed.
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put the gearshift in Neutral (or "Park", if automatic).
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upshift.
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downshift.
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28.
Sleep debt is defined as:
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the accumulated amount of sleep from frequent rest brakes.
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the amount of sleep you get each night.
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the cumulative effect of not getting enough sleep.
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All of the above.
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29.
For safety during a trip, you should:
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use your senses to check for problems.
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drive on the shoulder of the road.
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shift into a lower gear.
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pull off the road and stop.
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30.
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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legal weight limits.
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All of the above.
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