AIR BRAKES PRACTICE TEST - ALASKA
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The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. To drive a vehicle with air brakes, you must pass the air brake component of the Alaska CDL knowledge test. The AK CDL air brakes test consists of 25 questions, and you'll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the Alaska CDL Manual. Take this AK CDL practice test now to prepare for the actual air brakes test!
1.
Some air brake systems have an alcohol evaporator to:
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reduce the danger of slipping.
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prevent ice from forming in the brake system.
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reduce the stopping power of the vehicle.
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2.
The braking power of the spring brakes:
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is not affected by the condition of the service brakes.
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is not affected by the air pressure level.
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depends on the brakes being in adjustment.
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3.
The most common type of brake is the:
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G-cam disc brake
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R-cam drum brake
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S-cam drum brake
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4.
Supply pressure gauges tell drivers:
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how much pressure is in the air tanks.
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how much air pressure they are applying to the brakes.
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All of the above.
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5.
If are being followed closely, you should:
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increase your following distance.
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change lanes quickly.
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decrease your following distance.
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