Landing Gear Systems Test
An Anti-skid system is deactivated at a ground speed of
15-20 MPH
Which statement is true with respect to an aircraft equipped with hydraulically operated multi-disk brake assemblies?
Do not set the parking brakes when the brakes are hot
What should be checked when a strut bottoms out during landing
Fluid level
A blue discoloration of bearing rollers is an indication of
Overheating
What is the function of the internal cam assembly in a nose gear shock strut?
Straightens the nose wheel[s] for retraction
When an Air/ oil type of landing gear shock strut is used, the initial shock of landing is cushioned by
The fluid being forced through a metered opening
To Prevent a very rapid extension of an oleo strut after initial compression resulting from landing impact
Various Types of valves
Spongy brakes are caused by
air in the brake system
A high speed aircraft tire with a sound cord body and bead may be recapped
an indefinite number of times
Aircraft tire pressure should be checked
at least once a week or more often
The_____gives the tire the needed strength to assure a firm mounting on the wheel
bead
If the antiskid system malfunctions,the pilot can
dissable it without affecting normal braking
12. The purpose of a sequence valve in a hydraulic retractable landing gear is to
ensure operation of the landing gear and gear doors in the proper order
Aside from an external leak in the line,what will cause parking brakes to creep continuosly to the OFF position?
internal leak in the master cylinder or parking brake valve
After performing maintenance on an aircraft landing gear which may have afffected the system operation,it is usually necesary to
make an operational check with the aircraft on jacks
The fusible plugs installed in some aircraft wheels will
melt a a specified elevated temperature
Excesive wear in the center of the tread of an aircraft tire is an indication of
overinflation
The brake control valve in a Power Brake System is more of a
regulator valve
most aircraft,the oil level of a shock strut is checked by
releasing the air charge and seeing that the oil is to the level of the filler plug
The metering pins in oleo shock struts serve to
retard the flow of oil as the strut is compressed
The valve that isolates the emergency brake system from the normal power brake control system is a
shuttle valve
If a shock strut bottoms out after it has been properly serviced,the
strut should be disassembled and inspected for the cause of the problem
If a shock strut bottoms out after it has been properly serviced, the
strut should be disassembled and inspected for the cause of the problem
If system "A" of a dual power brake actuating system fails, system "B"
take over and provide pressure for braking
The pressure source for power brakes is
the main hydraulic system
Excesive wear in the shoulder area of an aircraft tire is an indication of
underinflation
Aircraft brakes rquiring a large volume of fluid to operate the brakes generally
use power control valves
Why is it necessary that tires on split rim wheels be deflated before removing the wheel from the axle?
As a safety precaution in case the bolts that hold the wheel halves together are weakened or damaged
In brake service work, the term "bleeding " is the process of
B. withdrawing fluid from the system for the purpose of removing air that has
The main advantages of a carbon brake are
Better heat absorbing qualities and lighter weight
When bleeding aircraft brakes,one of the indications that the air has been purged from the system is
firm brake pedals
Lock out deboosters act as
hydraulic fuses
The initial inflation of a newly assembled tire is done
in a special safety cage