AIR BRAKES CDL PRACTICE TEST - MISSOURI
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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 Missouri CDL knowledge test. The MO 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 Missouri CDL Manual. Take this MO CDL practice test now to prepare for the actual air brakes test!
1.
To prevent rollover, you should:
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keep the cargo as close to the ground as possible.
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go slowly around turns.
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All of the above.
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2.
When you apply the brakes, the brake shoes and linings are pushed against:
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the S-cam.
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the supply pressure gauge.
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None of the above.
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3.
When the spring brakes are on, you should push the brake pedal down:
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Only when driving uphill.
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Only when driving downhill.
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Never.
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4.
How should you apply the brakes when going down a steep downgrade?
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Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
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Apply the brakes when you reach the bottom of the downgrade.
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Apply the brakes as hard as you can without locking the wheels.
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5.
If you are being tailgated, you should:
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move to the left lane.
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speed up.
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increase your following distance.
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