VA CDL AIR BRAKES PRACTICE TEST
21.
Which of the following statements is true?
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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Poor cargo ventilation is a common cause of fire.
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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22.
If stopped on a hill, how can you start moving without rolling back?
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Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
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Press on the gas pedal, even if you have to roll back a little.
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Release the parking brake before you have applied enough engine power to keep from rolling back.
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23.
If a load is placed on one side of the trailer:
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the steering axle weight will be too light to steer safely.
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making turns may be easier.
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a rollover is more likely.
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24.
Rough acceleration:
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is necessary to warm up the engine.
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can cause mechanical damage.
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improves gas mileage.
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25.
Brakes out of adjustment can cause the other brakes to:
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apply more braking power.
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last longer.
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overheat and fade.
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