Air Brakes and Safety Procedures

What is the correct response if somebody suddenly pulls out in front of you?

• Hit the brakes immediately.

• Swerve to avoid.

• Speed up to pass.

• Honk the horn.

Match the following procedures with their descriptions:

• Hit the brakes when someone pulls out in front of you

• Emergency Stops

• Use the braking force necessary to stop safely

• Normal Stops

• Push the brake pedal down

• Braking with ABS

Fill in the blank: When braking with ABS, you should brake as you always have, using only the ______ force necessary.

• steering

• braking

• speed

• engine

Match the following components with their role in total stopping distance: 1) Perception Distance 2) Reaction Distance 3) Brake Lag Distance 4) Braking Distance

• Distance covered while reacting

• Distance covered while braking

• Distance covered while braking

• Time for air to flow through the lines

• Distance covered while perceiving a hazard

• Distance covered while perceiving a hazard

• Time for air to flow through the lines

• Distance covered while reacting

What is the added delay in stopping distance when using air brakes called?

• A) Brake Lag

• B) Reaction Time

• C) Perception Delay

• D) Braking Time

In the context of braking, what should be checked often to ensure safety?

• Tire pressure

• Brake adjustment

• Fuel level

• Engine oil

What happens if brakes are out of adjustment?

• They will stop doing their share before those in adjustment.

• They will work more efficiently.

• They will increase stopping distance.

• They will reduce brake fade.

Which component of stopping distance is affected by the time required for air to flow through the lines?

• Perception Distance

• Reaction Distance

• Brake Lag Distance

• Braking Distance

What is the effect of overheated drums on brake shoes and linings?

• They expand and increase brake fade

• They contract and reduce brake fade

• They remain unchanged

• They improve braking efficiency

When the air pressure drops into the range of ____, the spring brakes will come on.

• 20 to 25 psi

• 30 to 35 psi

• 40 to 45 psi

• 50 to 55 psi