AIR BRAKES PRACTICE TEST - WASHINGTON
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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 Washington CDL knowledge test. The WA 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 Washington CDL Manual. Take this WA CDL practice test now to prepare for the actual air brakes test!
1.
Air tanks must be drained completely to:
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pump water and compressor oil into the tanks.
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remove all moisture and oil.
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remove all the air.
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2.
Which of the following is NOT part of the drum brake?
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Safety valve
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Axle
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Brake drum
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3.
On any upgrade, gravity:
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slows you down.
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doubles your speed.
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speed you up.
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4.
A passive railroad crossing is one that:
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does not have any type of traffic control device.
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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 a traffic control device installed at the crossing to regulate traffic.
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5.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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left; right
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right; left
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left; left
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