Landing Gear Oral (I hate this class)

Question 1

What does it mean by ply rating of a tire?

Answer 1

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

Question 2

What is the function of the bead in a tire?

Answer 2

To provide the strength and stiffness where the tire mounts on the wheel.

Question 3

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

Answer 3

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

Question 4

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

Answer 4

The grooves produce optimal traction with the runway surface

Question 5

What is the most widely used tread pattern for modern aircraft?

Answer 5

A series of straight grooves around the periphery of the tire

Question 6

is it best to store new tires vertically or horizontally?

Answer 6

Vertically

Question 7

How should new aircraft tires be stored?

Answer 7

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

Question 8

What is the most important maintenance procedure for aircraft tires?

Answer 8

Proper inflation

Question 9

What should be used to remove oil from a tire?

Answer 9

Mild soap and warm water.

Question 10

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

Answer 10

In the aircraft service manual.

Question 11

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

Answer 11

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

Question 12

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

Answer 12

Operating the tire in an overinflated condition

Question 13

What would cause the aircraft tire to wear quicker on the shoulder of the tire rather than the center of the tread?

Answer 13

Underinflation

Question 14

What should be done to an aircraft tire if the side walls are weather-check(dry routed) enough to expose the cord?

Answer 14

The tire should be scrapped.

Question 15

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

Answer 15

It is possible in some aircraft that a new or retreaded tire can be different enough in size from the previous tire that it could lock up in the wheel well when the landing gear is retracted.

Question 16

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

Answer 16

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

Question 17

What should be done with a tire that was on a wheel which was overheated enough to melt the fusible plug in the wheel?

Answer 17

The tire should be scrapped.

Question 18

What is a squat switch and where is it located?

Answer 18

The squat switch is essentially a sensor that senses if the weight of the aircraft is resting on the gear. Located on nose or either one of main gears.

Question 19

What kind of device is normally used as a sensor to detect the condition of a retractable landing gear?

Answer 19

A precision Microswitch.