ALABAMA CDL AIR BRAKES PRACTICE TEST
11.
Before transporting sealed loads, you should check that:
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the load can be inspected.
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the seal numbers match the placard numbers.
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the load is properly secured.
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All of the above.
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12.
When you apply the brakes, the brake shoes and linings are pushed against:
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the air compressor.
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the inside of
the brake drum.
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slack adjusters.
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the s-cam.
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13.
The parking brake:
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should be used when driving in bad weather.
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should be used when you need to apply the brakes firmly.
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should be used whenever you park.
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All of the above.
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14.
To perform an applied leakage test, the vehicle’s air pressure should be built up to maximum pressure. Check the air gauge to see that the air pressure should drop no more than:
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5 psi for single vehicles and 6 psi for a combination of 2 vehicles.
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2 psi for single vehicles and 5 psi for a combination of 2 vehicles.
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3 psi for single vehicles and 4 psi for a combination of 2 vehicles.
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1 psi for single vehicles and 3 psi for a combination of 2 vehicles.
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15.
Brake drums or discs must not have cracks longer than ____ the width of the friction area.
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1/3
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1/5
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1/4
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1/2
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