KY CDL AIR BRAKES PRACTICE TEST
6.
Slack adjusters:
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regulate the distance that the air brake has to travel to apply friction to the wheel.
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regulate the distance between the rear wheels.
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are available in four types: manual, automatic, robotic and analog.
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should move more than one inch where the push rods attach to them.
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7.
An ABS system:
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gives you more control over the vehicle during braking.
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helps you avoid skids caused by over braking.
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keep your wheels from locking when you brake hard.
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All of the above.
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8.
Air tanks must be drained because:
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if you don't drain the tanks yourself, your battery fluid may drain out.
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if one air system is low on pressure, the rear brakes will not be operating fully.
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when you push the brake pedal, air is let into each brake chamber.
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compressed air usually has some water in it. The water can freeze in cold
weather and cause brake failure.
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9.
An Anti-lock Braking System (ABS):
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lets you drive faster.
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increases your normal braking capability.
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always shortens your stopping distance.
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keeps your wheels from locking up when you brake hard.
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10.
The braking power of the spring brakes:
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is not affected by the condition of the service brakes.
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depends on the brakes being in adjustment.
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is not affected by the air pressure level.
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All of the above.
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