AIR BRAKES PRACTICE TEST - WEST 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 West Virginia CDL knowledge test. The WV 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 West Virginia CDL Manual. Take this WV CDL practice test now to prepare for the actual air brakes test!
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1.
Most heavy duty vehicles use ___ air brake systems for safety.
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single
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reduced
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dual
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triple
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2.
In vehicles with air brakes, the brake pedal:
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let the
air out of the spring brakes.
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controls the air pressure applied to the brakes.
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tells you how much pressure is in
the air tanks.
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pumps air into the air storage
tanks.
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3.
On any upgrade, gravity:
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doubles your speed.
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slows you down.
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doesn't affect your speed.
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speed you up.
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4.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Steering
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Braking
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Weight limits
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Speed control
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5.
If your vehicle does not have automatic air tank drains, how often should you drain air tanks to remove moisture and oil?
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Once a week.
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At the end of each working day.
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Every 4 hours.
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At least once a month.
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6.
When you release the brake pedal, the _____ rotates back and a spring pulls the brake shoes away from the drum.
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pressure gauge
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hydraulic brake system
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S-cam
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air compressor belt
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7.
Stepping on and off the brake pedal several times:
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may result in dangerously thin linings.
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reduces the air pressure in the tanks.
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may cause air leaks.
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All of the above.
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8.
If you get stuck on the railroad tracks, the first thing you should do is:
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stay in your vehicle and call 911.
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try to move your vehicle until you see the train.
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immediately get out of the cab and move away from the tracks.
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scream for help.
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9.
The total stopping distance for vehicles with air brake systems is made up of __ different factors.
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3
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2
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4
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5
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10.
When driving on slippery roads, you should NOT:
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watch far enough ahead to keep a steady speed.
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go slowly.
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use the engine brake.
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try to anticipate stops early.
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WV Air Brakes CDL Test
| Number of questions: | 25 |
| Correct answers to pass: | 20 |
| Passing score: | 80% |
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