30 Questions
What is the purpose of measuring the amount that the indicator pin protrudes with the brakes applied?
To determine if new linings are required
Why are carbon brakes commonly used in high performance and air carrier aircraft?
Because they are approximately forty percent lighter than conventional brakes
What material is used to construct the brake rotors in carbon brakes?
Carbon fiber
How does the weight of carbon brakes compare to conventional brakes?
Carbon brakes are approximately forty percent lighter than conventional brakes
What is a key advantage of carbon fiber discs over sintered steel rotors?
They can withstand temperatures fifty percent higher than steel component brakes
Why does the text suggest consulting the manufacturer’s maintenance information regarding wear indicators?
To ensure wear indicators are read correctly
What material is typically used in creating the rotor contact surface?
Sintered metal
Why are rotors often segmented or slit instead of being solid?
To prevent warping
What is the purpose of retraction spring assemblies with auto clearance adjusters in segmented multiple-disc brakes?
To provide clearance for the wheel to turn unimpeded
In the context of segmented multiple-disc brakes, what is the function of the pin grip assembly?
Limiting the amount of return equal to brake lining wear
How do retraction mechanisms behave in response to brake pressure being applied?
Move out but are limited in return by a ball in a tube
What type of aircraft uses the brake assembly illustrated in Figure 13-89?
Boeing 737
What is the technician advised to inspect whenever possible in the landing gear area?
Wheels, tires, and brakes
Why is a missing bolt on a wheel a cause for immediate action?
It poses a safety risk due to potential stresses on the wheel halves
What should be examined to ensure it is secure along with the wheel hub dust cap?
Anti-skid sensor
Why is it important to inspect thermal plugs in aircraft wheels?
To ensure no fusible alloy melting has occurred
What action should be taken for a wheel with thermal plugs that have allowed pressure loss in the tire?
Remove the wheel assembly for inspection
Why is axle nut torque emphasized in aircraft wheel installation?
Of extreme importance in ensuring wheel safety
What keeps pressurized fluid in the working chambers of a vane-type shimmy damper?
Replenishing piston
What is the purpose of the rubber piston in a non-hydraulic shimmy damper?
To rub against the housing for damping
What is included in the vane-type shimmy damper for thermal compensation of the orifice size?
Fluid port
In a non-hydraulic shimmy damper, what does the rubber piston press out against when receiving shimmy motion?
Inner diameter of the damper housing
What component provides an indication of fluid level in a vane-type shimmy damper?
Indicator rod
What type of damping does a non-hydraulic shimmy damper rely on?
Surface-effect damping
What is the main function of a brake metering valve in an aircraft power brake system?
To facilitate graduated brake pressure control
How is the amount of hydraulic fluid supplied to the brakes by the brake metering valve determined?
In direct relation to the pressure applied to the pedal and the displacement of the slide/spool
What is the purpose of an autobrake in an aircraft power brake system?
To automatically apply brakes in certain conditions
Why are power brake systems in large aircraft constructed with redundancy?
As a safety measure in case of hydraulic system failure
What is the role of the return spring in a brake metering valve?
To return hydraulic fluid to the system return manifold
How does a machined slide or spool in a brake metering valve operate?
It moves laterally to admit the correct amount of hydraulic system fluid to the brakes
Learn about the use of steel rotors in automotive engineering, including their design, composition, and benefits. Understand how segments in the rotor contribute to heat dissipation and prevent warping. Explore the bonding of frictional surfaces to steel rotors.
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