AIR BRAKES PRACTICE TEST - WASHINGTON
6.
To check the slack adjusters:
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Park on level ground and chock the wheels, release the parking brakes and pull hard on each slack adjuster. The slack adjuster shouldn't move more than one inch.
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park downhill and see if the vehicle rolls.
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check the air hoses connected to the brake chambers to make sure they aren't cut or worn.
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7.
In vehicles with air brakes, the air compressor governor:
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controls how much air the air compressor will pump into the air storage tanks.
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controls when the air storage tanks will pump air into the air compressor.
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controls when the air compressor will pump air into the air storage tanks.
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8.
An Anti-lock Braking System (ABS):
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lets you drive faster.
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keeps your wheels from locking up when you brake hard.
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increases your normal braking capability.
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9.
The supply pressure gauges tell you how much air pressure:
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you are applying to the brakes.
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is going to the brake chambers.
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is in the air tanks.
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10.
If the air pressure gets too low:
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the brakes will not work.
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the brakes will lock up.
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ABS will help maintain vehicle control.
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