GA CDL AIR BRAKES PRACTICE TEST
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The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. To drive a vehicle with air brakes, you must pass the air brake component of the Georgia CDL knowledge test. The GA CDL air brakes test consists of 25 questions, and you'll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the Georgia CDL Manual. Take this GA CDL practice test now to prepare for the actual air brakes test!
1.
A passive railroad crossing is one that:
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has a traffic control device installed at the crossing to regulate traffic.
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requires you to stop and wait until the traffic control device installed at the crossing tells you to proceed.
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has at least two traffic control devices installed at the crossing to regulate traffic.
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does not have any type of traffic control device.
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2.
To check the slack adjusters on S-cam brakes, you should:
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park on level ground, chock the wheels and release the parking brakes, then use gloves and pull hard on each slack adjuster that you can reach.
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park on level ground and fan off the air pressure by rapidly applying and releasing the foot brake.
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release the parking brake valve and begin reducing the air pressure by stepping on and off the brake pedal.
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All of the above.
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3.
What factors can cause brakes to fade or fail?
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Not taking your foot off the accelerator.
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Going too slow.
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Not pressing the brake pedal hard enough.
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Overheating, low air pressure or water in the air tanks.
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4.
Antifreeze:
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helps the engine under hot conditions as well as cold conditions.
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helps the engine only when the temperature is below freezing.
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helps the engine only under hot conditions.
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doesn't help the engine in any way.
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5.
Emergency brakes are:
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not required on commercial vehicles with air brakes.
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not required on buses.
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required on all vehicles.
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not required on doubles.
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