記憶度
7問
20問
0問
0問
0問
アカウント登録して、解答結果を保存しよう
問題一覧
1
list 6 examples of what aircraft tubing assemblies are used for?
1. oil 2. oxygen system/ breathing air 3. instruments/ navigation 4. hydraulics 5. fire protection 6. ice and rain 7. environmental 8. fuel
2
what are aircraft fluid lines made of?
1. “metal tubing” stationary applications 2. “aluminum” most common, vent air 3. “flexible hose” moving parts, high vibration
3
AN/MS colour for aluminum alloy?
blue
4
AN/MS fitting colour for carbon steel?
black
5
AN/MS colour for CRS?
natural
6
AN/MS fitting material for aluminum cadium plate?
bronze
7
AN/MS fitting colour for titanium?
grey
8
list the process required to fabricate solid / rigid tubing?
1. tube cutting 2. deburring 3. bending 4. joining
9
what flair angle is used on aircraft rigid tube lines?
37 degrees
10
how is rigid tube size measured?
outside diameter in 16ths
11
rigid tube size for #4
4/16
12
rigid tube size for #5 tube?
5/16
13
rigid tube size for #8
8/16 or 1/2
14
list 4 examples of rigid fluid line material?
1. copper 2. aluminum 3. CRS “corrosion resistant steel” 4. titanium
15
what are colour codes to identify alloy tubing?
2024 main alloy “copper”, red colour 7075 main allow “zinc”, brown + yellow colour
16
how can tubing be identified?
colour band, symbols, writing
17
what does FLAM and PHADAN stand for ?
FLAM = flammable PHADAN= physically dangerous
18
tube bending methods
• by hand, under 1/4” •hand bending tool, between 1/4” to 1/2” •mechanical “production” bender, over 1/2”
19
what is the maximum flattening allowed for rigid tube bending?
max flattening is 25% of tube outside diameter
20
2 methods to join rigid tube assemblies
flared, flareless
21
what is a single and double flair used for?
•single flair for all sizes •double flair for soft aluminum, O.D of 3/8”
22
flareless fitting steps
1. select correct size 2. clamp tool in device 3. slide sleeve onto tube 4. lubricate fitting threads 5. place tube end firmly 6. tighten nut to specified turns in AMM
23
beaded tubing is used on what type of systems?
older “low pressure systems”, gravity and vacuum systems
24
what factors are used when determining what type of flex-hose material to use?
what type of fluid is moving through the line, ensuring the fluid type is compatible with the line
25
rigid tube defects and repairs
most common = leakage at fittings, scratches
26
what factors should be taken into consideration when fabricating a replacement rigid tube?
1. material same as original tube material 2. same tube diameter and wall thickness
27
explain the function of a vent line?
carry excess fluid overboard or other receptacle
28
what are flexible fluid lines used for ?
connects stationary part to moving part
29
list the three types of flexible hoses
1. low pressure 2. medium pressure 3. high pressure
30
what is the purpose of the outer cover in a flexible hose?
put over reinforcement. protects against physical damage, made of rubber or steel braids
31
what is the purpose of the inner liner in a flexible hose?
carries the fluid, chemically compatible with the fluid
32
list the synthetic compounds used for inner lining of a flexible hose?
1. neoprene 2. Teflon 3. butyl 4. bunan
33
how are flexible fluid lines measured?
inside diameter in 16”th
34
flexible line -4 I.D?
4/16ths
35
flexible fluid line -5” line?
5/16”th
36
what is the purpose of the lay line on a flexible hose?
stripe running length of line, shows if line is twisted. line runs parallel
37
what are two types of fittings used on flexible lines?
1. swagged, one time use 2. re-usable, more than one use
38
what is the purpose of the minimum bend radius for flexible hoses?
allows for expansion and contraction, no kinks in line
39
what is the minimum bend radius for -4 ? flexible line?
3”
40
what is the minimum bend radius for -5? flexible line
3, 3/8”
41
what is minimum bend radius for -6 flexible line?
5”
42
minimum bend radius for -8 flexible line?
5 3/4”
43
minimum bend radius for -10 flexible line?
6 1/2”
44
minimum bend radius for -12 flexible line
7 3/4”
45
minimum bend radius for -16 flexible lines?
9 5/8”
46
when is titanmium tubing used?
above 3000psi
47
colour codes to identify aluminum alloy tubing, 7075 colour?
brown + yellow
48
colour codes used to identify aluminum alloy tubing for 2024
red
49
describe this?
red warning, diamonds
50
describe this
green warning, rectangles
51
describe this
grey warning, triangles