CDL AIR BRAKES PRACTICE TEST - NEBRASKA
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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 Nebraska CDL knowledge test. The NE 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 Nebraska CDL Manual. Take this NE CDL practice test now to prepare for the actual air brakes test!
1.
In newer vehicles with air brakes, you put on the parking brake:
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moving the orange push-pull lever to the right.
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using a diamond-shaped, yellow, push-pull control knob.
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using a P-shaped, yellow control knob.
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placing the transmission in Park.
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2.
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 at least two traffic control devices installed at the crossing to regulate traffic.
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has a traffic control device installed at the crossing to regulate traffic.
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3.
Tractor and straight truck spring brakes will come fully on when the air pressure drops to a range of:
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30 to 35 psi.
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5 to 15 psi.
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55 to 74 psi.
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20 to 45 psi.
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4.
To avoid becoming a distracted driver you should:
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not engage in complex conversations with others.
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not turn off all communication devices.
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adjust all vehicle controls and mirrors while driving.
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eat and drink while you drive.
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5.
You should drain the air tanks completely. If water and oil collect in the air tanks:
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your brakes could become hard to press.
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your brakes could fail.
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your brakes could heat up.
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None of the above.
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