MINNESOTA CDL AIR BRAKES PRACTICE TEST
6.
After a tire has been changed, the driver should stop a short while later to:
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decrease tire pressure.
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check tread separation.
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deflate the tire to 10 psi.
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check the tightness of the nuts.
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7.
The air storage tanks:
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stop the compressor from pumping air.
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protects the tank and the rest of the system from too much pressure.
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are used to hold compressed air.
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are connected to the engine through gears or a v-belt.
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8.
When the wheels of a trailer lock up:
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ABS will increase stopping power.
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the trailer will tend to swing around.
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the vehicle will gradually come to a complete stop.
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All of the above.
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9.
When you make a quick lane change, the crack-the-whip effect can:
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turn the trailer over.
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improve your traction.
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make it harder to turn without skidding.
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the trailer to swing wide to the left.
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10.
Which of the following is NOT correct? An ABS system:
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is a safety anti-skid braking system.
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helps you avoid wheel lock up.
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helps you stop faster.
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reduces the braking pressure to a safe level.
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