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Brakes are not used often enough.
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Brakes overheat.
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Brakes are too cold.
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Brakes are wet.
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Georgia CDL Permit Test - Air Brakes
(From the 2021 Georgia CDL driver handbook)
| Number of questions: | 25 |
| Passing score: | 5 |
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. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Georgia Commercial Driver’s Manual. Questions come from chapter covering: Air Brakes. The Air Brakes endorsement may be used with the Class A, B or C CDL.
Passing grade —
20 or fewer errors
advertising
1.
Brake fading is caused when:
2.
An air compressor governor will stop the compressor from pumping air once the air tanks have an air pressure level of:
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125 psi.
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100 psi.
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150 psi.
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80 psi.
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3.
Brakes may get out of adjustment:
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If they are too hot.
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In colder weather.
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If they are used.
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If they get wet.
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4.
All air tanks must include:
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A drain valve.
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A lock.
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A trap door.
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A warning sticker.
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5.
On trucks and buses, where are ABS malfunction lamps located?
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On the driver’s door
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On the instrument panel
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On the outside of the vehicle by the passenger’s door
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Under the hood
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6.
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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