AIR BRAKES CDL PRACTICE TEST - INDIANA
6.
When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
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6 seconds
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12 seconds
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5 seconds
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4 seconds
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7.
The s-cam:
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helps ensure that air flows to all trailers.
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forces the brake shoes away from one another and presses them against the inside of the brake drum.
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pulls the brake shoes away from the drum.
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All of the above.
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8.
To operate a vehicle equipped with air brakes, you must pass the air brakes knowledge test. Why?
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All trucks have air brakes.
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If you don't pass the air brakes test, you can't get a CDL.
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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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If you don't, you will only receive a CDL permit.
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9.
Which of the following is NOT part of the drum brake?
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Axle
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Safety valve
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Brake drum
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Return spring
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10.
If your tires are hot, you should NOT:
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stop to let the tires cool down.
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let air out of the tires so the pressure goes back to normal.
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once the tires have cooled down, make another stop to check the tires.
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drive until you correct the cause of the overheating.
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