AIR BRAKES CDL PRACTICE TEST - NEVADA
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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.
How should you apply the brakes when going down a steep downgrade?
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Apply the brakes when you reach the bottom of the downgrade.
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You should not brake, and only use engine braking to prevent brake failure.
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Apply the brakes as hard as you can without locking the wheels.
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Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
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2.
To check slack adjusters on S-cam brakes, you should:
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use gloves and pull hard on each slack adjuster you can reach.
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check that the spring brakes come on automatically.
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press the brake pedal and listen for any strange noises.
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All of the above.
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3.
Axle weight is:
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the weight transmitted to the ground by one axle or one set of axles.
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the weight of all the axles added together.
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the value specified by the manufacturer as the loaded weight of one axle.
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the maximum safe weight your tires can carry at a specified pressure.
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4.
ABS brakes help you:
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downshift before starting down a hill.
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find an escape route when the service brakes fail.
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avoid wheel lock up.
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lock up the wheels in an emergency stop.
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5.
ABS malfunction lamps are located:
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on the instrument panel.
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under the hood.
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on the driver'door.
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None of the above.
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6.
The service brake applies and releases:
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the brake in an emergency situation.
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the brake when you use the brake pedal during normal driving.
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the parking brake when you use the parking brake control.
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None of the above.
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7.
Most heavy duty vehicles use ___ air brake systems for safety.
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triple
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reduced
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single
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dual
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8.
The posted speed limit:
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should never be exceeded.
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is only a suggestion.
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may only be exceeded when driving in rural areas.
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should only be exceeded when passing other vehicles.
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9.
If you must make an emergency stop, you should:
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apply the brakes as hard as you can to lock them.
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brake in a way that will keep your vehicle in a straight line.
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use the hand brake before the brake pedal.
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None of the above.
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10.
Which of the following is a reason why air tanks must be drained?
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Your battery fluid may drain out.
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Your transmission fluid may drain out.
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The governor may stop the compressor from pumping air.
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Your brakes may fail due to the water freezing.
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NV Air Brakes Test
| Number of questions: | 25 |
| Correct answers to pass: | 20 |
| Passing score: | 80% |
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