Air Brake System Flashcards
What is the primary function of an air brake system?
To slow down or stop a vehicle by using compressed air to apply pressure to the brake pads.
True or False: Air brake systems are only used in commercial vehicles.
False
What is the first step in diagnosing a failure in an air brake system?
Perform a visual inspection of the air brake components.
Fill in the blank: A common symptom of air brake failure is __________.
loss of braking power
What tool is commonly used to check air pressure in an air brake system?
A pressure gauge.
Which component is responsible for controlling air pressure in the system?
The air compressor.
What should be checked if the air pressure gauge shows a drop in pressure?
Inspect for leaks in the air lines and connections.
True or False: The brake shoes should be replaced if they are worn down to less than 1/4 inch.
True
What does a malfunctioning brake chamber indicate?
It may lead to uneven braking or complete brake failure.
Multiple Choice: What is a potential cause of air brake failure?
C. Air leak in the system.
What is the purpose of the slack adjuster in an air brake system?
To maintain proper clearance between the brake shoes and drum.
Fill in the blank: The __________ is an essential component that stores compressed air for the braking system.
air reservoir
What should be done if the air compressor is not building pressure?
Check for issues with the compressor or its drive mechanism.
True or False: Air dryer failure can result in moisture entering the brake lines.
True
What is the function of the anti-lock braking system (ABS) in air brakes?
To prevent wheel lock-up during braking.
What is a common method to test for air leaks in the system?
Listen for hissing sounds or use soapy water to identify leaks.
Multiple Choice: Which of the following is NOT a component of the air brake system?
D. Hydraulic fluid reservoir.
What does a brake warning light indicate?
That there is a problem with the air brake system.
Fill in the blank: The __________ valve regulates the air flow to the brake chambers.
brake control
What is the importance of maintaining proper air pressure in the system?
It ensures effective braking performance and safety.
True or False: Regular maintenance of air brake systems can prevent failures.
True
What should be done if the brakes feel spongy when applied?
Check for air in the brake lines and bleed the system if necessary.
What is the role of the brake pedal in an air brake system?
To activate the brake valves and control the braking force.
Multiple Choice: Which of the following can cause brake fade?
A. Excessive heat buildup in the brake system.
