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Kansas CDL Permit Test - Air Brakes

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 four answer choices. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Kansas 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.
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5 or fewer errors
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1.
The most common type of foundation brake used is the:
S-cam drum brake.
C-cam drum brake.
G-cam disc brake.
P-cam disc brake.
2.
If using air tanks with manually operated drains, how often should you drain the tanks?
Every day
Once a week
Once a month
Once every 3,000 miles
3.
Brake fading is caused when:
Brakes are not used often enough.
Brakes overheat.
Brakes are too cold.
Brakes are wet.
4.
Where is the safety relief valve usually located?
Near the rear brake
Near the front brake
In an air tank
On the dashboard
5.
Air tank drains:
Allow rain water to enter the tank.
Are used to drain water and compressor oil from the air tank.
Should never be opened.
Must remain open during transit.
6.
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.
Each system uses the same lines and hoses.
One system is the main braking system and a second system is ready to be used if the first one fails.
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