INDIANA 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 Indiana CDL knowledge test. The IN 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 Indiana CDL Manual. Take this IN CDL practice test now to prepare for the actual air brakes test!
1.
In vehicles with air brakes, the brake pedal:
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let the
air out of the spring brakes.
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tells you how much pressure is in
the air tanks.
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pumps air into the air storage
tanks.
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controls the air pressure applied to the brakes.
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2.
To brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary, you can use:
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the "controlled braking" method or the "stab braking" method.
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the "controlled braking" method.
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the "stab braking" method.
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None of the above.
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3.
If your trailer starts to skid, you should:
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accelerate slightly.
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keep the rear of your vehicle close to the curb.
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use the trailer hand brake (if you have one) to straighten out the rig.
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release the brakes to get traction back.
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4.
With air brake vehicles, you should use the parking brakes:
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as little as possible.
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only if your vehicle is equipped with ABS.
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only during the vehicle inspection test.
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whenever you leave the vehicle unattended.
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5.
If your vehicle is hydroplaning, you should:
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use the brakes to slow down.
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release the accelerator and push in the clutch.
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accelerate to get through the water as quickly as possible.
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None of the above.
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