Andale High School
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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.
An anti-lock braking system (ABS):
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helps you avoid wheel lock up.
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helps you avoid skids caused by over braking.
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should help you steer around an obstacle while braking.
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All of the above.
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2.
Front brake limiting valves were used to:
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reduce the chance of the front wheels skidding on slippery surfaces.
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prevent overheating of the front tires.
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reduce your speed so further braking or shifting is not required.
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reduce exhaust emissions.
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3.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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right; right
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left; right
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right; left
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left; left
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4.
Empty trucks:
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require greater stopping distances.
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have less traction.
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are higher than loaded trucks.
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All of the above.
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5.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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relying too much on the engine braking effect.
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excessive downshifting.
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loss of hydraulic pressure.
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driving in cold weather.
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