RHODE ISLAND CDL DOUBLES TRIPLES PRACTICE TEST
11.
An alcohol evaporator:
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protects the air brake system from too much pressure.
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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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used to reduce the chance of the front wheels skidding.
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12.
Texting is:
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the most dangerous distraction.
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about as safe as adjusting the radio.
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safer than talking on a cell phone.
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13.
The best way to recognize that your trailer has started to skid is:
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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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14.
If you have to drive off the road, you should:
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fully apply the brakes until your speed has dropped to about 20 mph.
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keep one set of wheels on the pavement, if possible.
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brake as hard as you can to maintain control.
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15.
For safe handling, the heaviest trailer should be:
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behind the tractor.
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the second trailer in a triple.
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the last trailer.
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16.
When conducting a pre-trip inspection:
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the inspection report should only be reviewed if you will be carrying passengers.
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the vehicle inspection report should not be reviewed unless your supervisor tells you to do so.
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you should review the last vehicle inspection report.
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17.
When should you downshift automatic transmissions?
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When you start to get drowsy.
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When going down steep grades.
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Watch your tachometer, and downshift when your engine reaches the top of the range.
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18.
Pre-trip inspections are:
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required only for trips of more than 50 miles.
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recommended.
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required by law
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19.
To avoid becoming an aggressive driver you should:
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make gestures to other drivers.
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give other drivers your full attention.
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give other drivers the benefit of the doubt.
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20.
Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
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Repaving of the road
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Rain
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The weight of a cargo
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