KS 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 Kansas CDL knowledge test. The KS 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 Kansas CDL Manual. Take this KS CDL practice test now to prepare for the actual air brakes test!
1.
The trailer hand valve should:
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be used in driving.
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never be used to test the trailer brakes.
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never be used for parking.
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All of the above.
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2.
The air storage tanks:
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are connected to the engine through gears or a v-belt.
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protects the tank and the rest of the system from too much pressure.
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stop the compressor from pumping air.
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are used to hold compressed air.
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3.
If are being followed closely, you should:
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increase your following distance.
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change lanes quickly.
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flash your brake lights.
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decrease your following distance.
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4.
The safety valve installed in the first tank the air compressor pumps air is set to open:
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if there is too much pressure.
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at 30 psi.
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every 15 minutes.
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if there is too little pressure.
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5.
If your vehicle is equipped with air brakes, loss of air pressure in the
emergency line causes:
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the trailer spring brakes to come on.
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the speed of your vehicle to increase.
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the trailer emergency brakes to come on.
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All of the above.
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