DMV Cartedefr · North.Carolina · cdl · Air Brakes Test 2

North Carolina cdl Air Brakes - Test 2

Number of questions: 25

Passing score: 80%

Acceptable number of errors: 5

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.

To DMV Handbooks

20. A dual air brake system:

A ×

Has a single air brake system, but uses two sets of controls.

B ×

Has one air brake system for each side of the truck.

C ×

Has two brakes for each wheel.

D

Has two separate air brake systems, but uses a single set of controls.

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