2026 Indiana DMV Air Brakes Class A Test 2 (25 Questions And Complete Answers)
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Truck tractors with air brakes built on or after March 1, 1997 must have:
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. GPS.
4. A rear back-up camera.
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. GPS.
4. A rear back-up camera.
An Anti-Lock Braking System (ABS).
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
1. At least three inches
2. More than two inches
3. Up to five inches
4. No more than one inch
1. At least three inches
2. More than two inches
3. Up to five inches
4. No more than one inch
No more than one inch
Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:
1. Are necessary for the proper function of the air brake system.
2. Should be added if low.
3. Should be removed regularly.
4. Are not concerns.
1. Are necessary for the proper function of the air brake system.
2. Should be added if low.
3. Should be removed regularly.
4. Are not concerns.
Should be removed regularly.
What is removed when an air tank is drained'?
1. Water and oil
2. Ammonia
3. Wood
4. Chlorine
1. Water and oil
2. Ammonia
3. Wood
4. Chlorine
Water and oil
To stop a vehicle using air brakes:
1. The brake pedal should be pressed.
2. The brake pedal should be lifted.
3. The brake knob should be pulled out.
4. The brake knob should be pushed in.
1. The brake pedal should be pressed.
2. The brake pedal should be lifted.
3. The brake knob should be pulled out.
4. The brake knob should be pushed in.
The brake pedal should be pressed.
A dual air brake system:
1. Has a single air brake system, but uses two sets of controls.
2. Has one air brake system for each side of the truck.
3. Has two brakes for each wheel.
4. Has two separate air brake systems, but uses a single set of controls.
1. Has a single air brake system, but uses two sets of controls.
2. Has one air brake system for each side of the truck.
3. Has two brakes for each wheel.
4. Has two separate air brake systems, but uses a single set of controls.
Has two separate air brake systems, but uses a single set of controls.
Air tank drains:
1. Allow rain water to enter the tanks.
2. Are used to drain water and oil from the air tanks.
3. Should never be opened.
4. Must remain open while driving.
1. Allow rain water to enter the tanks.
2. Are used to drain water and oil from the air tanks.
3. Should never be opened.
4. Must remain open while driving.
Are used to drain water and oil from the air 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.
A tank endorsement is:
1. Only required when transporting gases.
2. Only required when transporting liquids.
3. Required to transport both liquids and gases.
4. Optional when transporting hazardous materials.
1. Only required when transporting gases.
2. Only required when transporting liquids.
3. Required to transport both liquids and gases.
4. Optional when transporting hazardous materials.
Required to transport both liquids and gases.
On a truck with air brakes, the braking system’s air compressor:'
1. Pumps air into the air storage tanks.
2. Fills the tires.
3. Moves air to the back of the truck.
4. Cleans the brakes.
1. Pumps air into the air storage tanks.
2. Fills the tires.
3. Moves air to the back of the truck.
4. Cleans the brakes.
Pumps air into the air storage tanks.
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