30 Questions
What type of brake is a Cleveland brake on a light aircraft?
Fixed-disc brake
How many discs are used in a dual-disc brake system on aircraft?
Two discs per wheel
What should be the braking action for each main wheel when taxiing the aircraft?
Equal with equal application of pedal pressure
What should the pedals feel like when applying brakes on an aircraft?
Firm
Why are dual-disc brakes used on aircraft instead of single-disc brakes?
To increase braking efficiency
In a dual-piston Cleveland brake assembly, what is located between the two discs?
Center carrier
Which type of brake is known for withstanding two to three times the heat of a steel brake in nonaircraft applications?
Carbon brake
What is a key advantage of carbon rotors over steel rotors?
Maintain strength and dimensions at high temperatures
What is a significant factor that limits the use of carbon brakes on all aircraft?
High cost of manufacturing
What is the purpose of the metal nozzle fitted on the inner surface of the expander tube?
To direct hydraulic fluid under pressure into the tube
Which brake type is known for lasting twenty to fifty percent longer than steel brakes?
Carbon brake
What is a characteristic of an expander tube brake according to the text?
It uses a fabric-reinforced neoprene tube around the wheel
What is the source of power used in power brake actuating systems for aircraft?
Hydraulic system
How does a pilot activate the brakes in an aircraft equipped with power brakes?
By pressing on the rudder pedal
Why can't the volume and pressure of hydraulic fluid needed for braking be produced by a master cylinder?
Inadequate volume and pressure capabilities
What component returns system hydraulic fluid used to boost brake pressure?
Shuttle valve
Which valve is responsible for controlling the normal anti-skid function in an aircraft's power brake system?
Alternate antiskid valve
What is the purpose of a shuttle valve in a power brake system for aircraft?
Regulate hydraulic fluid pressure
What provides the majority of the rudder/brake pedal feel in a power brake system?
Brake metering valve
How does the brake valve feel augmentation unit create force on the brake input shaft movement?
Through a series of springs and pistons
What happens when slight pedal depression is applied for light braking?
The pedal feels light and easy to press
In an emergency brake situation, how are the inboard and outboard wheel brakes connected?
They are not connected
What is the purpose of having two separate brake assemblies for each main wheel assembly?
To provide redundancy in case of failure
Why is auto brake pressure withheld from a certain port during landing gear retraction?
Because the system is depressurized
What is the purpose of the retracting springs in the brake assembly?
To return the piston into the housing chamber when hydraulic pressure is relieved
What do the steel stators and copper or bronze-plated rotors do when hydraulic pressure is applied to the piston?
They are compressed together creating friction and heat
What is the purpose of the caliper mounting bolts in the brake system?
To mount through the center carrier and backplate
Why are multiple-disc brakes used on large, heavy aircraft?
To provide more stopping power
What happens when hydraulic pressure is relieved from the brake assembly?
The piston is returned into the housing chamber by retracting springs
How do multiple-disc brakes compare to single or dual-disc brakes?
Multiple-disc brakes provide more stopping power
Explore the differences between carbon brakes and steel brakes in non-aircraft applications. Learn about the heat resistance, heat dissipation, durability, and maintenance advantages of carbon brakes over steel brakes.
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