AIR BRAKES PRACTICE TEST - TEXAS
6.
The air brake lag distance at 55 mph on dry pavement adds about:
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32 feet.
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60 feet.
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75 feet.
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16 feet.
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7.
To operate a vehicle equipped with air brakes, you must pass the air brakes knowledge test. Why?
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If you don't, you will only receive a CDL permit.
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If you don't pass the air brakes test, you can't get a CDL.
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All trucks have air brakes.
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If you don't pass the air brakes test, you will be restricted to driving vehicles without air brakes.
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8.
When you use your mirrors while driving on the road, you should:
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avoid checking them regularly.
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only use the driver's side mirror.
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check them quickly.
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stare for a long time at the mirror.
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9.
Slack adjusters:
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regulate the distance between the rear wheels.
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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 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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10.
Before transporting sealed loads, you should check that:
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the load is properly secured.
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the load can be inspected.
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the seal numbers match the placard numbers.
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All of the above.
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