2026 Florida DMV Air Brakes Class A Test 1 (25 Questions And Complete Answers)
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If the low pressure warning light comes on while you are driving:'
1. Braking will only occur if there is enough air in the tanks.
2. You can brake 14 times before the air in the system runs out.
3. You should continue to drive normally and check the brake system when it is convenient.
4. You should continue driving, but turn the emergency flashers on to warn other motorists.
1. Braking will only occur if there is enough air in the tanks.
2. You can brake 14 times before the air in the system runs out.
3. You should continue to drive normally and check the brake system when it is convenient.
4. You should continue driving, but turn the emergency flashers on to warn other motorists.
Braking will only occur if there is enough air in the tanks.
In a dual air brake system:'
1. Each system has separate air tanks, hoses, and lines.
2. The systems share air tanks, but each has its own separate hoses and lines.
3. Each system uses the same lines and hoses.
4. One system is the main braking system and a second system is ready to be used if the first one fails.
1. Each system has separate air tanks, hoses, and lines.
2. The systems share air tanks, but each has its own separate hoses and lines.
3. Each system uses the same lines and hoses.
4. One system is the main braking system and a second system is ready to be used if the first one fails.
Each system has separate air tanks, hoses, and lines.
If the low pressure warning signal activates while you are driving, you should:'
1. Continue driving normally.
2. Exit the road and park as soon as safely possible.
3. Stop where you are and park.
4. Put on your hazard lights and continue driving.
1. Continue driving normally.
2. Exit the road and park as soon as safely possible.
3. Stop where you are and park.
4. Put on your hazard lights and continue driving.
Exit the road and park as soon as safely possible.
If the spring brakes are on, you should:'
1. Not use the brake pedal.
2. Press the accelerator.
3. Move the steering wheel.
4. Be especially careful because the brakes may fail.
1. Not use the brake pedal.
2. Press the accelerator.
3. Move the steering wheel.
4. Be especially careful because the brakes may fail.
Not use the brake pedal.
Braking mechanisms are located ____ a brake drum.
1. Outside
2. Inside
3. Next to
4. On top of
1. Outside
2. Inside
3. Next to
4. On top of
Inside
What does the air compressor governor do?
1. Controls when the air compressor pumps air into the air storage tanks.
2. Controls how quickly air leaves the air storage tanks.
3. Controls the temperature of the air leaving the air storage tanks.
4. Controls the temperature of the air entering the air storage tanks.
1. Controls when the air compressor pumps air into the air storage tanks.
2. Controls how quickly air leaves the air storage tanks.
3. Controls the temperature of the air leaving the air storage tanks.
4. Controls the temperature of the air entering the air storage tanks.
Controls when the air compressor pumps air into the air storage tanks.
Brake fading is caused when:
1. Brakes are not used often enough.
2. Brakes overheat.
3. Brakes are too cold.
4. Brakes are wet.
1. Brakes are not used often enough.
2. Brakes overheat.
3. Brakes are too cold.
4. Brakes are wet.
Brakes overheat.
What do anti-lock brakes do?
1. Help a driver avoid wheel lockup
2. Lock up the front wheels
3. Prevent a vehicle from accelerating while traveling uphill
4. Prevent a vehicle from accelerating while traveling downhill
1. Help a driver avoid wheel lockup
2. Lock up the front wheels
3. Prevent a vehicle from accelerating while traveling uphill
4. Prevent a vehicle from accelerating while traveling downhill
Help a driver avoid wheel lockup
When a brake pedal is pressed and the S-cam is turned, the S-cam:
1. Presses the brake shoes against the inside of the brake drum.
2. Tightens the brake drum onto the axle.
3. Presses the brake lining against the wheel.
4. Releases air from the air tanks.
1. Presses the brake shoes against the inside of the brake drum.
2. Tightens the brake drum onto the axle.
3. Presses the brake lining against the wheel.
4. Releases air from the air tanks.
Presses the brake shoes against the inside of the brake drum.
If the spring brakes are activated, you should never:
1. Push down the brake pedal.
2. Open the hood.
3. Release air from the air storage tanks.
4. Open the door to the cab.
1. Push down the brake pedal.
2. Open the hood.
3. Release air from the air storage tanks.
4. Open the door to the cab.
Push down the brake pedal.
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