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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 ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
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service
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parking
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emergency
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anti-lock
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2.
Most heavy-duty vehicles use:
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pump-the-brake systems.
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triple air brake systems.
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dual air brake systems.
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single air brake systems.
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3.
When the wheels of a trailer lock up:
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ABS will increase stopping power.
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the vehicle will gradually come to a complete stop.
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the trailer will tend to swing around.
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All of the above.
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4.
A tank endorsement is:
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only required when transporting liquids.
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not required when transporting hazardous materials.
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required for both liquids and gases.
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only required when transporting gases.
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5.
When you apply the brakes, the brake shoes and linings are pushed against:
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the supply pressure gauge.
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the safety relief valve.
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the S-cam.
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None of the above.
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