CDL Air Brakes Practice Test - Vermont
6.
The total stopping distance for vehicles with air brake systems is made up of __ different factors.
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3
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2
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4
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7.
What should you do to correct a drive-wheel braking skid?
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Fully apply the brakes, turn the steering wheel quickly, push in the clutch, and countersteer.
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Stop braking, turn the steering wheel quickly, push in the clutch, and countersteer.
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Turn in the same direction as the skid.
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8.
The one-way check valve:
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keeps your wheels from locking up when you brake hard.
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supplies air to the trailer air tanks.
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keeps air from going out if the air compressor develops a leak.
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9.
Air storage tanks:
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use parts of the service brake systems to stop the vehicle in a brake system failure.
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pump air into the air storage tanks.
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hold compressed air for the brakes.
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10.
Most heavy vehicles require ________ change gears.
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double clutching
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double shifting
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single clutching
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