AIR BRAKES PRACTICE TEST - VIRGINIA
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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 Virginia CDL knowledge test. The VA 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 Virginia CDL Manual. Take this VA CDL practice test now to prepare for the actual air brakes test!
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1.
If you get stuck on the railroad tracks, the first thing you should do is:
immediately get out of the cab and move away from the tracks.
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stay in your vehicle and call 911.
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scream for help.
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2.
Controlled braking:
must be used when you need to turn sharply while braking.
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involves locking the wheels and then releasing the brakes.
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can be used to keep your vehicle in a straight line and allow you to turn if necessary.
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3.
Which of the following can cause brakes to fade or fail?
Excessive use of the service brakes
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Brakes out of adjustment
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All of the above.
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4.
To control your speed on a downgrade, you should:
use controlled braking.
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fully apply the brakes.
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use engine braking.
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5.
If the low air pressure warning light comes on, you should:
continue to drive normally.
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stop immediately.
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call for help.
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6.
When confronted by an aggressive driver, you should:
avoid eye contact.
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call the police, if you have a cell phone and can do it safely.
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All of the above.
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7.
ABS malfunction lamps are located:
under the hood.
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on the driver'door.
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on the instrument panel.
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8.
When the air pressure is built up to governor cutoff, the air leakage rate for combination vehicles with the engine off and the foot brake fully applied should be less than_____ in one minute.
2 psi
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4 psi
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3 psi
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9.
An Anti-lock Braking System (ABS):
increases your normal braking capability.
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keeps your wheels from locking up when you brake hard.
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lets you drive faster.
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10.
To make the brakes work, air brakes use:
nitrogen.
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hydraulic air.
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compressed air.
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VA Air Brakes CDL Test
Number of questions: | 25 |
Correct answers to pass: | 20 |
Passing score: | 80% |
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