CDL GENERAL KNOWLEDGE TEST (NORTH CAROLINA) - PRACTICE TEST
11.
What is Gross Vehicle Weight (GVW)?
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A vehicle's maximum weight rating, specified by its manufacturer.
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The total weight of a single vehicle including its cargo.
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The total weight of a vehicle, including that of any trailers.
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None of the above.
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12.
An alcohol evaporator:
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used to reduce the chance of the front wheels skidding.
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is used to reduce the risk of ice in air brake valves and other parts during cold weather.
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protects the air brake system from too much pressure.
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to hold compressed air.
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13.
If driving in a foggy area, you should NOT:
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turn on 4-way emergency flashers.
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use roadside highway reflectors as guides.
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slow down before you enter fog.
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use high beams for best visibility.
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14.
Transporting livestock requires special attention. Why?
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Because a rollover is more likely.
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Because livestock can lean on curves.
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Because livestock can move around in a trailer.
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All of the above.
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15.
The best way to recognize that your trailer has started to skid is:
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by opening the window and feeling the front of the mirror.
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by recognizing tire failure.
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by seeing it in your mirrors.
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by feeling the brakes come on.
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16.
To back-up safely, you should:
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use mirrors on both sides.
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start in the proper position.
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look at your path.
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All of the above.
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17.
To know when to shift, you can use each of the following except:
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engine sounds.
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road speed.
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engine speed.
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perception distance.
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18.
To make sure you always have overhead clearance, always be aware that:
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re-paving or packed snow may have reduced the clearances since the heights were posted at bridges and overpasses.
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some roads can cause a vehicle to tilt.
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an empty vehicle is taller than a loaded one.
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All of the above.
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19.
When a tire fails, the driver should:
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swerve to the right.
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drive on the shoulder.
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immediately apply the brakes.
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stay off the brake.
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20.
Before unloading explosive materials, you should:
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keep the engine running.
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connect heater power sources.
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use hooks or other metal tools if possible.
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turn your engine off.
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