AIR BRAKES CDL PRACTICE TEST - KENTUCKY
11.
When backing, you should:
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only use mirror on the driver's side.
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use the mirrors on both sides.
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back quickly.
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back and turn toward the right side whenever possible.
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12.
With the air pressure built up to governor cutoff, the maximum leakage rates per minute after the initial pressure drop are:
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1 psi for single vehicles and 2 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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5 psi for single vehicles and 6 psi for a combination of 2 vehicles.
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4 psi for single vehicles and 2 psi for a combination of 2 vehicles.
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13.
Your vehicle has a dual air brake system. If one air system is very low on pressure, you should:
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reduce your speed and check the low air pressure warning signal for the other system regularly.
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reduce your speed and drive to the nearest garage for repairs.
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bring the vehicle to a safe stop, and have the air brakes system fixed.
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call your dispatcher or supervisor for instructions.
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14.
If you must drive slowly, how should you alert following drivers?
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Flash your brake lights
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Use your emergency flashers if it is legal
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Turn on your taillights
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Help them out by signaling when it is safe to pass
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15.
If you are being tailgated, you should:
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increase your following distance.
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avoid quick changes.
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avoid tricks like turning on your taillights or flashing your brake lights.
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All of the above.
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