1. Foundation brakes are used:
Only at the front wheels.
At each wheel.
Only at the driver’s side wheels.
Only at the rear wheels.
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Air Brakes
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 North Carolina 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.
Number of Questions
25
Passing Score
20
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To Pass
0
Correct
0
Incorrect
0
4. In a dual air brake system:
Each system has separate air tanks, hoses, and lines.
The systems share air tanks, but each has its own separate hoses and lines.
One system is the main braking system and a second system is ready to be used if the first one fails.
Each system uses the same lines and hoses.
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5. How is the parking brake released?
By tapping the accelerator twice
By starting the vehicle
By tapping the brake pedal three times
By pushing in the brake control knob
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6. When only the tractor is equipped with an Anti-Lock Braking System (ABS):
The brakes will not work as effectively as they would without ABS.
The brakes will become more sensitive.
There is a decreased risk of jackknifing.
There is an increased risk of jackknifing.
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