NV CDL AIR BRAKES PRACTICE TEST
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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 Nevada CDL knowledge test. The NV 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 Nevada CDL Manual. Take this NV CDL practice test now to prepare for the actual air brakes test!
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1.
When the spring brakes are on, you should never:
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push the brake pedal down.
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decrease your speed.
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change lanes.
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upshift.
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2.
Antilock brakes:
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help you stop faster.
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decrease your stopping distance.
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let you drive faster.
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None of the above.
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3.
Before starting down a hill, you should:
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slow down and shift to a lower gear.
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look for an escape route.
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apply the brakes hard.
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release the accelerator and shift to Neutral at the same time.
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4.
If you get stuck on railroad tracks, you should:
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stay in the vehicle and call for help.
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check the engine compartment quickly.
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get out of the vehicle and away from the tracks.
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have a helper push your vehicle.
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5.
When you push the brake pedal down, air brakes work:
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immediately.
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after a short delay.
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only when ABS is working.
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after about 15 seconds.
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6.
A broken exhaust system:
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poses no threat to the driver.
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can let poisonous carbon monoxide to leak into the cab.
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can improve fuel efficiency.
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does not cause problems.
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7.
Why should you check your mirrors regularly to know where other vehicles are around you?
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To flash the brake lights if you are being tailgated.
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To move out of their way if they want to get past.
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To know whether you can make a quick lane change in an emergency.
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To better assess your own speed.
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8.
If a vehicle is equipped with ABS, when you start the engine:
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the spring brakes will come on.
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the wheels will lock up.
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the ABS indicator light on the dash should come on and then turn off.
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the trailer emergency brakes will come on.
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9.
You are coming down a long, steep downgrade. Which of the following is a sign that your brakes may have started to fade?
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You have to apply your brakes harder and harder to get the same stopping power.
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The brake pedal feels spongy or goes to the floor.
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You hear a loud "bang".
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The steering feels heavy.
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10.
A dual air brake system:
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has a single air brake system, which uses two separate sets of brake controls.
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has two separate air brake systems, which use two separate sets of brake controls.
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has a single air brake system, which uses a single set of brake controls.
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has two separate air brake systems, which use a single set of brake controls.
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NV CDL Air Brakes Test
| Number of questions: | 25 |
| Correct answers to pass: | 20 |
| Passing score: | 80% |
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