CDL AIR BRAKES PRACTICE TEST - MONTANA
6.
If your vehicle is hydroplaning, you should:
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accelerate to get through the water as quickly as possible.
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use the brakes to slow down.
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release the accelerator and push in the clutch.
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None of the above.
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7.
Vehicles with air brakes require more stopping distance than vehicles with hydraulic brakes. Why?
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It takes one half second or more for the air to flow through the lines to the brakes.
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When driving vehicles with air brakes, the average perception distance increases from 400 feet to 2200 feet.
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Stopping distance for vehicles with air brakes is made up of six different factors.
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Air brakes use different brake drums.
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8.
The application pressure gauge:
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tells you how much pressure is in the air tanks.
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shows how much air pressure is being applied to the brakes.
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protects the tank and the rest of the system from too much pressure.
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stops the compressor from pumping air.
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9.
Air pressure should build up in a single air system, within about:
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3 minutes.
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10 minutes.
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15 minutes.
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1 minute.
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10.
Most heavy duty vehicles use ___ air brake systems for safety.
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triple
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dual
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reduced
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single
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