TENNESSEE CDL AIR BRAKES PRACTICE TEST
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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 Tennessee CDL knowledge test. The TN 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 Tennessee CDL Manual. Take this TN CDL practice test now to prepare for the actual air brakes test!
1.
When backing, you should:
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only use mirror on the driver's side.
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use the mirrors on both sides.
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back quickly.
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back and turn toward the right side whenever possible.
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2.
The air compressor stops pumping air into the air storage tanks when air tank pressure rises to around:
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250 psi.
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450 psi.
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125 psi.
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100 psi.
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3.
If a load is 10 feet long, the minimum number of tie-downs required is:
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3
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4
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2
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1
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4.
Excessive use of the service brakes results in overheating. Too much heat can:
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cause the brakes to squeak.
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cause the brakes to grab.
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cause the brakes apply unevenly.
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make the brakes stop working.
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5.
When meeting an oncoming vehicle at night, if the other driver does not put their low beams on, you should:
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look slightly to the right to avoid looking directly at the lights of the oncoming vehicle.
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flash your high beams at the other driver.
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"get back at the other driver" by putting your own high beams on.
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slow down and look straight ahead in your lane.
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