AIR BRAKES PRACTICE TEST - WISCONSIN
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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 Wisconsin CDL knowledge test. The WI 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 Wisconsin CDL Manual. Take this WI CDL practice test now to prepare for the actual air brakes test!
1.
If your tires are hot, you should NOT:
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once the tires have cooled down, make another stop to check the tires.
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drive until you correct the cause of the overheating.
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stop to let the tires cool down.
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let air out of the tires so the pressure goes back to normal.
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2.
At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________ to be sure it is safe to proceed.
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listen, look and stop
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go, look and put the transmission in neutral
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go, stop and listen
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stop, look, and listen
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3.
Which of the following is TRUE about dual air brake systems?
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Each brake system has its own air tanks, hoses and lines.
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A dual air brake system has 2 separate air brake systems.
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most heavy-duty vehicles use dual air brake systems.
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All of the above.
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4.
Weight that is loaded so there is a high center of gravity:
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reduces the chance that the load will shift to the side or fall off.
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makes a vehicle easier to handle.
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causes greater chance of rollover.
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All of the above.
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5.
If your truck has automatic transmission, you should downshift:
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when you need to accelerate.
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when going down grades.
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whenever road conditions allow.
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after entering a curve.
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