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Brakes being exposed to sunlight.
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Brakes being exposed to moisture.
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Excessive use of the brakes.
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Connecticut CDL Permit Test - Air Brakes
(From the 2021 Connecticut CDL driver handbook)
| Number of questions: | 25 |
| Passing score: | 20 |
Directions:
This endorsement is required for driving a vehicle with air brakes. To receive this endorsement, applicants must pass a written test. The test consists of 25 multiple choice questions. Each question has three or four answer choices. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Connecticut Commercial Driver License Manual. Questions come from the chapter covering: Air Brakes. The Air Brakes endorsement may be used with the Class A, B or C CDL.
Passing grade —
5 or fewer errors
advertising
1.
Brake fade is a result of:
2.
Before starting down a hill, be sure to:
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Accelerate.
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Switch into a high gear.
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Sound your horn.
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Switch into a low gear.
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3.
Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:
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Are necessary for the proper function of the air brake system.
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Should be added if low.
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Should be removed regularly.
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Are not concerns.
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4.
A dual air brake system:
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Has a single air brake system, but uses two sets of controls.
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Has one air brake system for each side of the truck.
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Has two brakes for each wheel.
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Has two separate air brake systems, but uses a single set of controls.
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5.
To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:
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Set the control to normal.
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Set the control to the off position.
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Set the control to neutral.
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Keep the control at the halfway mark.
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6.
What color are ABS malfunction lamps?
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Orange
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Yellow
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Green
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Blue
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