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Controls when the air compressor pumps air into the air storage tanks.
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Controls how quickly air leaves the air storage tanks.
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Controls the temperature of the air entering the air storage tanks.
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Controls the temperature of the air leaving the air storage tanks.
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Kansas CDL Permit Test - Knowledge Test Class A
(From the 2021 Kansas CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Test questions come from the Kansas Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Passing grade —
10 or fewer errors
advertising
1.
What does the air compressor governor do?
2.
When a brake pedal is pressed and the S-cam is turned, the S-cam:
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Presses the brake shoes against the inside of the brake drum.
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Tightens the brake drum onto the axle.
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Presses the brake lining against the wheel.
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Releases air from the air tanks.
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3.
The drive shaft should:
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Be bent toward the passenger side.
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Be bent toward the driver’s side.
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Be bent to one side or the other.
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Not be bent.
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4.
If an aggressive driver confronts you, you should not:
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Challenge them.
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Ignore their gestures.
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Avoid making eye contact.
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Try to get out of their way.
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5.
What does an Anti-Lock Braking System (ABS) do?
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Allow the rear wheels to lock up
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Allow all wheels to lock up
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Help prevent wheel lockup
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Alert other motorists when you are braking
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6.
You should cover cargo:
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To protect the cargo from thieves.
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To protect the cargo from weather.
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To prevent other drivers from looking at what is being transported.
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To keep the cargo a secret.
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7.
Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.
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25 psi
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50 psi
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75 psi
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100 psi
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