2026 Free Arizona DMV Air Brakes Class A Test 2 (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.
When leaving your vehicle unattended:
1. The parking brake must be always be used.
2. The parking brake should never be used.
3. Windows in the cab should be lowered.
1. The parking brake must be always be used.
2. The parking brake should never be used.
3. Windows in the cab should be lowered.
The parking brake must be always be used.
Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
1. Are necessary for the proper function of the system.
2. Should take up about 10 percent of the tank.
3. Should be removed regularly.
1. Are necessary for the proper function of the system.
2. Should take up about 10 percent of the tank.
3. Should be removed regularly.
Should be removed regularly.
If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:
1. Test the brakes while driving, but continue driving if nothing seems wrong.
2. Immediately stop driving.
3. Drive with the hazard lights activated.
1. Test the brakes while driving, but continue driving if nothing seems wrong.
2. Immediately stop driving.
3. Drive with the hazard lights activated.
Immediately stop driving.
An emergency brake must be controlled by:
1. Mechanical force.
2. Air pressure.
3. Gravity.
1. Mechanical force.
2. Air pressure.
3. Gravity.
Mechanical force.
The air compressor is connected to the:
1. Transmission.
2. Engine.
3. Radiator.
1. Transmission.
2. Engine.
3. Radiator.
Engine.
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.
Air tank drains:
1. Should not be used in cold weather.
2. Are helpful to remove water and oil from the air tanks.
3. Are used to move air to the brakes.
1. Should not be used in cold weather.
2. Are helpful to remove water and oil from the air tanks.
3. Are used to move air to the brakes.
Are helpful to remove water and oil from the air tanks.
If you are driving and the ABS light comes on, it means that the ABS:
1. Cannot work due to weather conditions.
2. Has just been activated.
3. Is not working properly.
1. Cannot work due to weather conditions.
2. Has just been activated.
3. Is not working properly.
Is not working properly.
A low air pressure warning signal:
1. Is not required on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
1. Is not required on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
Is required on vehicles with air brakes.
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