AIR BRAKES PRACTICE TEST - SOUTH CAROLINA
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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 South Carolina CDL knowledge test. The SC 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 South Carolina CDL Manual. Take this SC CDL practice test now to prepare for the actual air brakes test!
1.
You should always try to back toward the driver's side because:
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backing toward the left side is more dangerous.
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you can watch the rear of your vehicle out the side window.
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you can more easily correct any steering errors.
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None of the above.
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2.
When driving in a construction zone, if a construction worker is near the road, you should:
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further reduce your speed.
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come to a complete stop.
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maintain a constant speed.
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speed up.
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3.
A low air pressure warning signal:
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is required on all vehicles without air brakes.
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is optional on vehicles with air brakes.
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is required on vehicles with air brakes.
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None of the above.
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4.
You are driving on a steep downgrade. If your safe speed is 35 mph, you should apply the brakes when your speed reaches:
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35 mph
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25 mph
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30 mph
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45 mph
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5.
You should drain your air tanks:
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every month.
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at least once a week.
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at the beginning of each trip.
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at the end of each working day.
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