Air Brake Check Quiz

What is the purpose of the spring brake check?

• To ensure the vehicle can move forward

• To check the alignment of the wheels

• To verify the spring brakes function correctly

• To test the air pressure in the system

During the service brake check, what should you observe when you pull ahead and stop?

• The vehicle should accelerate

• The vehicle should move to the right

• The vehicle should move to the left

• The vehicle should not move to the left or right

What is the first step in checking the parking brake on the tractor?

• Push the yellow knob in

• Push the red knob in

• Pull the yellow knob out

• Pull the red knob out

What should you do if the vehicle moves when checking the parking brake on the tractor?

• Adjust the air pressure

• Release the tractor brakes

• Re-engage the trailer brakes

• Check the spring brakes

What is the maximum operating range for the air pressure?

• 130 to 150 PSI

• 120 to 140 PSI

• 110 to 130 PSI

• 100 to 120 PSI

How much air pressure should the system lose in one minute during the leak test?

• No more than 4 PSI

• No more than 3 PSI

• No more than 2 PSI

• No more than 5 PSI

At what PSI should the alarms activate during the air system check?

• Above 50 PSI

• Above 45 PSI

• Above 60 PSI

• Above 55 PSI

Between what PSI should the dash valves pop out during the air system check?

• 15 and 35 PSI

• 25 and 50 PSI

• 10 and 30 PSI

• 20 and 45 PSI