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AIR BRAKES PRACTICE TEST - MISSISSIPPI

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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 Mississippi CDL knowledge test. The MS 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 Mississippi CDL Manual. Take this MS CDL practice test now to prepare for the actual air brakes test!
1. What should you do to correct a drive-wheel braking skid?
Fully apply the brakes, turn the steering wheel quickly, push in the clutch, and countersteer.
Stop braking, turn the steering wheel quickly, push in the clutch, and countersteer.
Turn in the same direction as the skid.
None of the above.
2. When driving at night, you should:
look directly at the lights of oncoming vehicles.
put your own high beams on if other drivers don't put their low beams on.
use dark lenses if possible.
drive slowly enough to see obstacles with your headlights.
3. If you are driving a 30-foot vehicle at 55 mph, you should leave at least _____ between you and the vehicle ahead.
3 seconds
2 seconds
4 seconds
5 seconds
4. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
5, 25 and 50 feet
5, 50 and 500 feet
3, 15 and 45 feet
10, 100 and 200 feet
5. Which of the following is not a way to know when to change gears?
Use engine speed (rpm)
Check that the pressure gauge shows normal oil pressure
Watch your tachometer
Use road speed (mph)
6. Front wheel braking is good:
Never.
only in wet conditions.
only in good weather.
under all conditions.
7. To control your speed on a downgrade, you should:
coast in neutral.
use controlled braking.
use engine braking.
fully apply the brakes.
8. If the spring brakes do not release when you push the trailer air supply control, you should:
check the air line connections.
rev or lug the engine.
check the electrical cables.
pump the brakes.
9. Before transporting sealed loads, you should check that:
the seal numbers match the placard numbers.
the load is properly secured.
the load can be inspected.
All of the above.
10. When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
right; left
right; right
left; right
left; left
 
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MS Air Brakes CDL Test

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