Airframe: Section 2. Airframe Systems And Components - I . -Aircraft Landing Gear Systems

Front 1

Where may the instructions for greasing a retractable landing gear on an aircraft be found?

Back 1

In the aircraft maintenance manual.

Front 2

Where may a list of the approved lubricants for greasing the aircraft retractable landing gear be found?

Back 2

In the aircraft maintenance manual.

Front 3

Where can you find safety precautions for jacking an aircraft for retractable landing gear inspection and maintenance?

Back 3

In the aircraft maintenance manual.

Front 4

What is the purpose of the centering cam in a nose–wheel shock strut?

Back 4

The centering cam forces the nose wheel straight back with the strut before it is retracted into the nose–wheel well.

Front 5

How does a shimmy damper keep a nose wheel from shimmying?

Back 5

It acts as a small hydraulic shock absorber between the piston and the cylinder of the nose–wheel shock strut.

Front 6

Where can you find the specifications for the type of fluid used to service an aircraft landing gear shock strut?

Back 6

On the nameplate on the strut.

Front 7

What absorbs the initial landing impact in an oleo shock strut?

Back 7

The transfer from oil from one compartment to another through a metered orifice.

Front 8

What absorbs the taxi shocks on an oleo shock strut?

Back 8

The compressed air or nitrogen.

Front 9

How much oil should be put into an oleo shock strut?

Back 9

With the strut completely deflated, fill it to the level of the filler plug.

Front 10

How much air or nitrogen should be put into an oleo shock strut?

Back 10

With the strut serviced with fluid and other filler plug in place and the weight of the aircraft on the strut, put in enough air or nitrogen to extend the piston to the height specified in the aircraft maintenance manual.

Front 11

What is the purpose of using an exerciser jack when servicing a shock strut with fluid?

Back 11

The jack moves the piston up and down the inside the cylinder to work all of the air out of the oil to be sure that the proper amount of oil is in the strut.

Front 12

Where can you find a list of brake fluids approved for the aircraft?

Back 12

In the aircraft service manual.

Front 13

What is used to flush brake lines and cylinders if the system uses vegetable–base fluid?

Back 13

Alcohol.

Front 14

What is used to flush brake lines and cylinders if the system uses mineral–base fluid?

Back 14

Naphtha, varsol, or Stoddard solvent.

Front 15

How do you measure the amount of brake lining wear on single disk brakes?

Back 15

Measure the clearance between the disk and the inboard side of the brake housing with the brakes applied.

Front 16

What is the purpose of the debooster in the hydraulic power brake system?

Back 16

The debooster decreases the pressure and increases the volume of fluid going to the brakes. This gives the pilot better control of the brakes.

Front 17

What should be done to hydraulic brakes when the pedal has a spongy feel?

Back 17

The spongy feel is caused by air in the brake. The brakes should be bled of this air.

Front 18

What is the purpose of the compensator port in the master cylinder of aircraft brakes?

Back 18

The compensator port in the master cylinder opens the brake reservoir to the wheel cylinders when the brakes are off. This prevents pressure from building up in the brake lines and causing the brakes to drag.

Front 19

What is the purpose of the shuttle valve in the brake system of an aircraft using hydraulic power brakes?

Back 19

The shuttle valve is an automatic transfer valve. It allows the brakes to be operated by hydraulic system pressure under all normal conditions; but if this pressure is lost, it allows the brakes to be operated by the emergency backup system.

Front 20

How does an antiskid brake system keep the wheels of an aircraft from skidding on a wet runway?

Back 20

The antiskid system monitors the rate of deceleration of the wheels. If any wheel slows down faster than it should (as it would at the beginning of a skid), the pressure on the brake in that wheel is released until the wheel stops decelerating, then the pressure is reapplied.

Front 21

When removing a wheel from an aircraft to change the tire, when should the tire be deflated?

Back 21

After the aircraft is on the jacks, but before the axle nut is loosened.

Front 22

What should be used to deflate high–pressure tires?

Back 22

A deflator cap screwed onto the tire valve, the allow the air to escape through the hole in the side of the cap and not in the face of the mechanic.

Front 23

What is used in a split wheel to keep air from leaking between the two wheel halves?

Back 23

An O–ring seal.

Front 24

Where are cracks most likely to form in an aircraft wheel?

Back 24

In the bead seat area.

Front 25

What type of inspection should be used to inspect the bead seat area of a wheel for cracks?

Back 25

Eddy current inspection.

Front 26

What is meant by the ply rating of a tire?

Back 26

The number of plies of cotton fabric needed to produce the same strength as the actual plies in the tire.

Front 27

What is the function of the bead in a tire?

Back 27

The bead is made of high–strength carbon steel wire bundles and used to provide the strength and stiffness where the tire mounts on the wheel.

Front 28

Is it proper to use a tube in a tubeless tire?

Back 28

No, the inner liner of a tubeless tire is rough and it can chafe the tube in normal operation.

Front 29

What is the function of the grooves cut into the tread of a tire?

Back 29

The grooves produce the optimum traction with the runway surface.

Front 30

What is the most widely used read pattern for modern airplane tires?

Back 30

A series of straight grooves around the periphery of the tire.

Front 31

Where should new aircraft tires be stored?

Back 31

In a dark, cool location away from electrical motors or battery chargers.

Front 32

Is it best to stores new tires vertically or horizontally?

Back 32

Vertically.

Front 33

What is is the most important maintenance procedure for aircraft tires?

Back 33

Keep them properly inflated.

Front 34

What should be used to remove oil from a tire?

Back 34

Mild soap and warm water.

Front 35

Where do you find the proper inflation pressure for an aircraft tire?

Back 35

In the aircraft service manual.

Front 36

Why should aircraft tire pressure be rechecked after it has been installed for about 24 hours with no load applied?

Back 36

The tire will stretch and the pressure will drop. The proper pressure must be restored.

Front 37

What causes an aircraft tire to wear more on the shoulders than in the center of the tread?

Back 37

Operating the tire in an underinflated condition.

Front 38

What causes an aircraft tire to wear more in the center of the tread than on the shoulders?

Back 38

Operating the tire in an overinflated condition.

Front 39

What should be done to an aircraft tire if the sidewalls are weather–checked enough to expose the cord?

Back 39

The tire should be scrapped.

Front 40

Where can you find the correct inflation pressure for the tires on an aircraft?

Back 40

In the aircraft service manual.