ASYS Exam 4

Question 1

what is the ATA chapter for landing gear

Answer 1

ATA 32

Question 2

what purposes do aircraft landing gear serve

Answer 2

support aircraft

allow for ground maneuvering

allows aircraft to take off and land

Question 3

what are the basic requirements of aircraft landing gear

Answer 3

• strong enough to accept mediocre landings
• dissipate energy from landing throughout the airframe
• light
• create as little drag as possible

Question 4

two landing gear configurations

Answer 4

tricycle and conventional (tail dragger)

Question 5

Advantages vs Disadvantages of tricycle

Answer 5

Advantages

• less risk of nosing over
• less risk of ground loop
• improved visibility
• level attitude for loading/unloading

Disadvantages

• Heavier
• More drag
• fragile

Question 6

what are the different types of landing gear shock absorption

Answer 6

-rigid gear
-rubber bungee cords
-rubber compression disks
-steel springs
-composite springs
shock strut (oleo)

Question 7

how does a tail dragger aircraft steer while taxiing

Answer 7

differential breaking

Question 8

how is a tricycle aircraft controlled during taxi

Answer 8

cables connected to front wheel controlled via rudder pedals

Question 9

what is a shimmy damper

Answer 9

holds nose wheel perfectly straight at high speeds so it does not rotate during flight

Question 10

what ATA chapter are Doors

Answer 10

ATA 52

Question 11

what are the 3 types of doors

Answer 11

• passenger
• cargo
• emergency

Question 12

What are the two most common methods of sealing an aircraft door

Answer 12

plug or pressure

Question 13

what ATA chapter are windows

Answer 13

ATA 56

Question 14

what are aircraft windows most commonly made from

Answer 14

plastic
glass
acrylic

Question 15

what are the two most common types of plastics? what are the differences between them

Answer 15

thermosetting

• can be molded only once
• opaque

thermoplastic

• transparent
• can be heated and reshaped indefinitely

Question 16

two types of acrylic

Answer 16

monolithic

laminated

Question 17

what characteristics define Acrylic

Answer 17

• clear as glass
• non conductive
• high strength to weight ratio
• easily scratched
• expands 3X more than aluminium

Question 18

what precautions must be taken when storing acrylic

Answer 18

• keep out of direct sunlight

- store vertically with no wight on top

Question 19

what is crazing

Answer 19

a large amount of tiny cracks across entire window. reduces visibility

Question 20

what is delamination? what can cause it to happen

Answer 20

delamination is when the adhesive between layers of laminated acrylic fail and they begin to come apart. usually caused by excessive heat

Question 21

what drill bit is best suited for aircraft windows

Answer 21

uni-bit or regular bit with a 150 degree tip

Question 22

what are the precautions that must be taken when cutting acrylic

Answer 22

• slowly to reduce heat build up
• low blade speed to avoid catching
• leave protective film on until installation

Question 23

what are the different types of damage and defects on a window

Answer 23

scratches
distortion
dulling
crazing
chips
cracks

Question 24

what is used to clean acrylic

Answer 24

Ethylene Dichloride

Question 25

when sanding acrylic windows, what type of sand paper is to be used

Answer 25

Micro-mesh paper from 1500 - 12,000 grit