2026 Nevada DMV Air Brakes Class B Test 2 (25 Questions And Complete Answers)
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If the air pressure warning light comes on, you should:
1. Continue to drive normally.
2. Drive with one foot on the accelerator and one foot on the brake pedal.
3. Call the local law enforcement agency.
4. Safely exit the roadway and stop.
1. Continue to drive normally.
2. Drive with one foot on the accelerator and one foot on the brake pedal.
3. Call the local law enforcement agency.
4. Safely exit the roadway and stop.
Safely exit the roadway and stop.
Air pressure should build up in a single air system within:
1. 15 minutes.
2. 12 minutes.
3. Three minutes.
4. One minute.
1. 15 minutes.
2. 12 minutes.
3. Three minutes.
4. One minute.
Three minutes.
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 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.
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.
Some air brake systems introduce alcohol into the system to:
1. Make the brakes work without squeaking.
2. Prevent ice from forming in the brake system.
3. Prevent people from breathing the air from the system.
1. Make the brakes work without squeaking.
2. Prevent ice from forming in the brake system.
3. Prevent people from breathing the air from the system.
Prevent ice from forming in the brake system.
To use the controlled braking method, you should:
1. Apply the brakes as hard as possible without locking the wheels.
2. Apply the brakes with about half-force.
3. Apply the brakes until the wheels lock.
4. Pump the brakes.
1. Apply the brakes as hard as possible without locking the wheels.
2. Apply the brakes with about half-force.
3. Apply the brakes until the wheels lock.
4. Pump the brakes.
Apply the brakes as hard as possible without locking the wheels.
In a vehicle with dual air brakes, a leak in one system ____ the second system.
1. Will always affect
2. May not affect
3. Is caused by
1. Will always affect
2. May not affect
3. Is caused by
May not affect
Air tank drains should:
1. Only be used by mechanics.
2. Only be used when it is wet outside.
3. Be used to drain the tanks completely.
1. Only be used by mechanics.
2. Only be used when it is wet outside.
3. Be used to drain the tanks completely.
Be used to drain the tanks completely.
A safety valve is set to open at ____ pounds per square inch (psi).
1. 100
2. 150
3. 200
1. 100
2. 150
3. 200
150
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