Aircraft Landing Gear Systems Flashcards
(82 cards)
An O-ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with
A blue stripe or dot.
To prevent a very rapid extension of an oleo shock strut after initial compression resulting from landing impact
Various types of valves or orifices are used which restrict the reserve.
The primary purpose for balancing aircraft wheel assemblies is to
Prevent heavy spots and reduce vibration.
When will a continuous horn provide a warning in the cockpit?
When the throttle is retarded and gear is not down and locked.
Which statement is true with respect to an aircraft equipped with hydraulically operated multiple-disk type brake assemblies?
Do not set parking brake when brakes are hot.
Lockout deboosters are primarily pressure reducing valves that
Allow full debooster piston travel without fluid from the high pressure side entering the low pressure chamber.
Many brake types can be adapted to operate mechanically or hydraulically. Which type is not adaptable to mechanical operation?
Expander-tube type.
Why do most tire manufacturers recommend that the tubes in newly installed tires be first inflated, fully deflated, and then reinflated to the correct pressure?
To allow the tube to position itself correctly inside the tire.
What is one effect a restricted compensator port of a master cylinder will have on a brake system?
The restriction will cause slow release of the brakes.
Debooster valves are used in brake systems primarily to
Reduce the pressure and release the brakes rapidly.
Power boost brake systems are used on aircraft that have
High landing speeds
Excessive wear in the center of the tread of an aircraft tire is an indication of
Overinflation
An electric motor used to raise and lower a landing gear would most likely be a
Split field series-wound motor.
On most aircraft, the oil level of an air and oil shock strut is checked by
Releasing the air and seeing that the oil is to tone? level of the filler plug
When working with high pressure, high performance tires, why is it recommended to deflate the tires when removing wheels from the axle?
To ensure safety in case of a defective wheel or broke tire bolts.
A pilot reports that the brake pedals have excessive travel. A probable cause is
Lack of fluid in the brake system.
The removal, installation, and repair of landing gear tired by the holder of a private pilot certificate on and aircraft owned or operated is considered to be
Preventive maintenance
If a brake debooster is used in a hydraulic brake systems, its position in the system will be
Between the brake control valve and the brake actuating cylinder.
The purpose of a relief valve in a brake system is to
Compensate for thermal expansion.
In shock struts, chevron seals are used to
Prevent oil from escaping
Aircraft brakes requiring a large volume of fluid to operate the brakes generally
Use power brake control valves.
Exposure to and/or storage near which of the following is considered harmful to aircraft tires?
1) low humidity
2) fuel
3) oil
4) ozone
5) helium
6) electrical equipment
7) hydraulic fluid
8) solvents
2,3,4,6,7,8
If a shock strut bottoms after it has been properly serviced, the
Strut should be removed, disassembles, and inspected.
The left brake is dragging excessively on an airplane on which no recent brake service work has been performed. The most probable cause is
Foreign particles stuck in the master cylinder compensating port.