A&p O&p Airframe Part 2 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 an 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 retractable landing gear for inspection and maintenance?

Back 3

In the aircraft maintenance manual.

Front 4

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

Back 4

To align the nose wheel back in line 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 like a 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 fluids used to service an aircraft landing gear shock strut?

Back 6

On the name plate on the strut.

Front 7

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

Back 7

Transfer of oil from one component to the other through a metered orifice.

Front 8

What absorbs the taxi shocks in 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

After completely deflation, refill to the level of the filler plug as specified in the maintenance manual.

Front 10

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

Back 10

Enough air 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

It ensures that the proper amount of oil is in the strut as the Pistons moved up and down inside the cylinder to work all the air out of the oil.

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 on 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

After, Varsol, or stoddard solvent.

Front 15

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

Back 15

Clarence is measured 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

It decreases the pressure and increases the volume of fluid going to the brakes, giving the pilot better control of the brake system.

Front 17

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

Back 17

Bleed the brakes, sponginess is typically a sign of air in the brake system.

Front 18

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

Back 18

It prevents pressure from building up in the brake lines when the brakes are off, thereby reducing the chances of drag.

Hint 18

The compensator port opens the break reservoir to the wheel cylinder when it breaks are off.

Front 19

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

Back 19

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

Front 20

How does the anti-skid brake system keeps the wheels of an aircraft from skating on a wet runway?

Back 20

The anti-skid system monitors the rate of deceleration of the wheels when the wheels slows down faster than it should, 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 valve of the tire to allow it to escape through the hole on the side of the cap and not in the face of the mechanic deflating the tire.

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

It's made of high strength carbon steel wire bundles and is 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 liner of a tubeless tire is rough and it can chafe the tube in normal operations

Front 29

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

Back 29

Produces optimum traction with the runway surface.

Front 30

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

Back 30

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

Front 31

How should new aircraft tires be stored?

Back 31

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

Front 32

Is it best to store new tires vertically or horizontally?

Back 32

Vertically.

Front 33

What 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

Because 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

Under inflated condition.

Front 38

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

Back 38

Overinflated condition.

Front 39

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

Back 39

The tire should be scrapped.

Front 40

Why is it important that some aircrafts with retractable landing gear be given a retraction test after a new or retreaded tires are installed?

Back 40

Because the changes in the tire that was retreaded can cause the tire to lock up in the wheel well when the landing gear is retracted.

Front 41

What safety proceed you should be followed when inflating a tire on a large aircraft wheel for the first time after it has been replaced

Back 41

Put the wheel in a safety cage when it is being inflated because of the danger if the through bolts should fail.

Front 42

What should be done with a tire that was on a wheel which was over heated enough to melt the fusible plugs in the wheel?

Back 42

The tire should be scrapped.

Front 43

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

Back 43

In an aircraft service manual