ALABAMA 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 Alabama CDL knowledge test. The AL 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 Alabama CDL Manual. Take this AL CDL practice test now to prepare for the actual air brakes test!
1. You should drain your air tanks:
at the beginning of each trip.
every month.
at least once a week.
at the end of each working day.
2. _________ must have a low air pressure warning signal.
All vehicles with air brakes
Only vehicles with air brakes built before 2015
Vehicles with air brakes built after 2010
Vehicles with air brakes built after 2005
3. If you are being tailgated, you should:
flash your brake lights.
speed up.
increase your following distance.
move to the left lane.
4. To prevent rollover, you should:
drive slowly around on ramps and off ramps.
keep the cargo as close to the ground as possible.
go slowly around turns.
All of the above.
5. The ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
anti-lock
service
emergency
parking
6. If you are being tailgated, you should:
turn on your taillights.
try to let the other vehicle pass.
drive on the shoulder.
speed up.
7. A driver distraction is anything that takes your attention away from driving, such as:
billboards.
adjusting the radio.
pedestrians.
All of the above.
8. Air tanks must be drained completely to:
put alcohol into the air system.
pump water and compressor oil into the tanks.
remove all moisture and oil.
remove all the air.
9. Which of the following statements is true?
There is no way that short circuits due to damaged insulation can cause a vehicle fire.
Carrying a properly charged and rated fire extinguisher will help prevent fires.
Poor cargo ventilation is a common cause of fire.
Under-inflated tires will NOT cause a vehicle fire.
10. If you are driving a 30-foot vehicle at 55 mph, you should leave at least _____ between you and the vehicle ahead.
5 seconds
4 seconds
3 seconds
2 seconds
 
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AL CDL Air Brakes Test

Number of questions: 25
Correct answers to pass:20
Passing score:80%
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