CDL AIR BRAKES PRACTICE TEST - DELAWARE
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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 Delaware CDL knowledge test. The DE 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 Delaware CDL Manual. Take this DE CDL practice test now to prepare for the actual air brakes test!
1.
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.
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the "controlled braking" method or the "stab braking" method.
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the "stab braking" method.
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None of the above.
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2.
The air storage tanks:
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protects the tank and the rest of the system from too much pressure.
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stop the compressor from pumping air.
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are used to hold compressed air.
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are connected to the engine through gears or a v-belt.
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3.
When the air system is fully-charged, the air loss rate for a single vehicle with the engine off should be less than:
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4 psi in one minute.
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3 psi in one minute.
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2 psi in 30 seconds.
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2 psi in one minute.
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4.
Most heavy-duty vehicles use:
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pump-the-brake systems.
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dual air brake systems.
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single air brake systems.
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triple air brake systems.
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5.
Air tanks usually hold enough compressed air to allow the brakes to be used _________ even if the compressor stops working.
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for 3 days
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for one day
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for one stop
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several times
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