CDL AIR BRAKES PRACTICE TEST - DELAWARE
6.
Spring brakes are usually held back by:
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the antilock braking system.
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the brake pedal.
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modulating control valves.
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air pressure.
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7.
The tire load rating is stated:
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on each axle.
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inside the suspension system.
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on the dashboard.
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on the side of each tire.
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8.
The supply pressure gauges tell you how much air pressure:
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is going to the brake chambers.
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is in the air brakes.
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you are applying to the brakes.
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is in the air tanks.
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9.
The use of brakes on a steep downgrade is:
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much more effective than the engine braking effect.
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a supplement to the braking effect of the engine.
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the main braking factor.
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dangerous, and should be avoided at all costs.
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10.
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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5
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