2026 Louisiana DMV Air Brakes Class A Test 1 (25 Questions And Complete Answers)
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Failing to drain air tanks could result in:
1. Water accumulations freezing and causing brake failure.
2. Squishy brakes.
3. Too much air collecting in the tanks.
1. Water accumulations freezing and causing brake failure.
2. Squishy brakes.
3. Too much air collecting in the tanks.
Water accumulations freezing and causing brake failure.
If you are braking on dry pavement while traveling at 55 mph, how much distance will brake lag add to your overall stopping distance?
1. 32 feet
2. 45 feet
3. 20 feet
1. 32 feet
2. 45 feet
3. 20 feet
32 feet
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
1. 1 psi
2. 2 psi
3. 3 psi
1. 1 psi
2. 2 psi
3. 3 psi
2 psi
An alcohol evaporator is especially important:
1. In cold weather.
2. In hot weather.
3. In dry weather.
1. In cold weather.
2. In hot weather.
3. In dry weather.
In cold weather.
When an S-cam turns inside a brake drum, the S-cam:
1. Presses the brake shoes against the inside of the brake drum.
2. Presses the brake shoes against the brake linings.
3. Presses the brake linings against the wheel axles.
1. Presses the brake shoes against the inside of the brake drum.
2. Presses the brake shoes against the brake linings.
3. Presses the brake linings against the wheel axles.
Presses the brake shoes against the inside of the brake drum.
When leaving your vehicle unattended:
1. The parking brake should be used.
2. The parking brake only needs to be used if the vehicle is parked on a slope.
3. The parking brake should not be used, as it can damage the tires.
1. The parking brake should be used.
2. The parking brake only needs to be used if the vehicle is parked on a slope.
3. The parking brake should not be used, as it can damage the tires.
The parking brake should be used.
What can happen if the air pressure gets too low in an air brake system?
1. The brakes may squeak.
2. The brakes may stop working.
3. The brakes may be sluggish.
1. The brakes may squeak.
2. The brakes may stop working.
3. The brakes may be sluggish.
The brakes may stop working.
Using the brakes creates heat. If too much heat is produced:
1. The brakes may not work.
2. The brakes may squeak more than usual.
3. The brakes will brake unevenly.
1. The brakes may not work.
2. The brakes may squeak more than usual.
3. The brakes will brake unevenly.
The brakes may not work.
When leaving a vehicle unattended, a driver should:
1. Always set the parking brake.
2. Only set the parking brake if the vehicle is parked on a slope.
3. Deflate the tires by 10 percent.
1. Always set the parking brake.
2. Only set the parking brake if the vehicle is parked on a slope.
3. Deflate the tires by 10 percent.
Always set the parking brake.
What color light indicates a vehicle's ABS is not working?
1. Green
2. Blue
3. Yellow
1. Green
2. Blue
3. Yellow
Yellow
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