AIR BRAKES CDL PRACTICE TEST - IOWA
16.
If are being followed closely, you should:
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change lanes quickly.
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decrease your following distance.
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increase your following distance.
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17.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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excessive downshifting.
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relying too much on the engine braking effect.
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loss of hydraulic pressure.
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18.
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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19.
If your vehicle catches fire, you should pull over:
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in an open area.
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near trees.
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at a service station.
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20.
Some air brake systems have an alcohol evaporator to:
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reduce the danger of slipping.
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reduce the stopping power of the vehicle.
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prevent ice from forming in the brake system.
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