CDL AIR BRAKES PRACTICE TEST - ILLINOIS
11.
An Anti-lock Braking System (ABS):
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increases your normal braking capability.
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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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always shortens your stopping distance.
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12.
If you perform the skills test in a vehicle that is not equipped with air brakes:
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you will be restricted from operating vehicles with air brakes.
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you will be required to operate a CMV without hydraulic brakes.
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you will be required to operate vehicles with air brakes.
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you will be required to take the tank vehicle test.
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13.
When driving at night, you should:
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use dark lenses if possible.
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put your own high beams on if other drivers don't put their low beams on.
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look directly at the lights of oncoming vehicles.
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drive slowly enough to see obstacles with your headlights.
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14.
The stop light switch:
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warns you when the air supply pressure drops below 55 psi.
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turns on the brake lights when you put on the air brakes.
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tells you when you need to use your parking brake instead of the service brake.
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should be used to fend off tailgaters.
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15.
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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are used to adjust the brakes on an air-brake system.
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are the linkage between the operating rod in the brake chamber and drum brakes or disk brakes in an air brake system.
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All of the above.
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