AIR BRAKES PRACTICE TEST - UTAH
16.
If your tires are hot, you should NOT:
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let air out of the tires so the pressure goes back to normal.
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once the tires have cooled down, make another stop to check the tires.
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drive until you correct the cause of the overheating.
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stop to let the tires cool down.
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17.
The safety relief valve is usually set to open at ____ psi.
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100
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75
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50
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150
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18.
If your ABS is not working:
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it will slow your truck to a halt and force you to pull over.
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you should immediately bring your vehicle to a complete stop.
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you still have normal brake functions, and should drive and brake as you always have.
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the drive wheels will begin to spin, and you should take your foot off the accelerator.
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19.
If your vehicle has an alcohol evaporator, every day during cold weather, you should:
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check the alcohol container and fill up as necessary.
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fill it up with oil to prevent alcohol from freezing.
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fill it up with oil to prevent the pipes from freezing.
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ensure that compressed air usually has some water and some compressor oil in it.
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20.
Which of the following is NOT part of the drum brake?
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Brake drum
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Axle
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Return spring
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Safety valve
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