CT 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 Connecticut CDL knowledge test. The CT 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 Connecticut CDL Manual. Take this CT CDL practice test now to prepare for the actual air brakes test!
1.
What is the best way to test the low air pressure warning signal?
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step on and off the brake pedal while the engine is running.
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Shut the engine off when you have enough air pressure, turn the electrical power on and step on and off the brake pedal to reduce air pressure to below 60 psi.
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pump the brakes until the air pressure drops below 45 psi.
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All of the above.
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2.
When driving in hot weather, drivers should inspect tires:
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every hour or every 50 miles.
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every 3 hours or every 75 miles.
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every 2 hours or every 100 miles.
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every 4 hours or every 200 miles.
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3.
Brake drums or discs must not have cracks longer than ____ the width of the friction area.
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1/5
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1/3
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1/4
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1/2
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4.
When the wheels of a trailer lock up:
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the vehicle will gradually come to a complete stop.
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the trailer will tend to swing around.
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ABS will increase stopping power.
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All of the above.
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5.
If your truck has automatic transmission, you should downshift:
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when going down grades.
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when you need to accelerate.
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after entering a curve.
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whenever road conditions allow.
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