Air Brakes Operations

What is the primary purpose of the lesson on Air Brakes Operations?

• To provide information on the history of air brakes.

• To teach how to design air brake systems.

• To provide information needed to safely operate tactical vehicles equipped with air brakes.

• To explain the physics of air compression.

What is required to operate a vehicle equipped with air brakes?

• A special license for air brakes.

• An air brake endorsement.

• A certificate of air brake maintenance.

• A degree in mechanical engineering.

What is the main function of air brakes in a vehicle?

• To increase the speed of the vehicle.

• To use compressed air to make the brakes work.

• To reduce the fuel consumption of the vehicle.

• To enhance the vehicle's suspension system.

What are the three separate braking systems in an air brake system?

• Service brake

• Parking brake

• Emergency brake

• Hydraulic brake

What does the service brake system do?

• Applies and releases the brakes when you use the brake pedal during normal driving

• Applies and releases the parking brakes when you use the parking brake control

• Uses parts of the service and parking brake systems to stop the vehicle in a brake system failure

• Pumps air into the air storage tanks

What does the parking brake system do?

• Applies and releases the brakes when you use the brake pedal during normal driving

• Applies and releases the parking brakes when you use the parking brake control

• Uses parts of the service and parking brake systems to stop the vehicle in a brake system failure

• Pumps air into the air storage tanks

What does the emergency brake system do?

• Applies and releases the brakes when you use the brake pedal during normal driving

• Applies and releases the parking brakes when you use the parking brake control

• Uses parts of the service and parking brake systems to stop the vehicle in a brake system failure

• Pumps air into the air storage tanks

What is the function of the air compressor in an air brake system?

• Controls when the air compressor will pump air into the air storage tanks

• Pumps air into the air storage tanks

• Holds compressed air

• Applies and releases the brakes

What does the air compressor governor do when the air tank pressure rises to the "cut-out" level?

• Stops the compressor from pumping air

• Starts the compressor pumping air

• Releases the parking brakes

• Applies the service brakes

At what PSI is the air compressor governor "cut-out" level?

• 125 PSI

• 150 PSI

• 100 PSI

• 110 PSI