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51 Cards in this Set
- Front
- Back
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Aircraft Fluid line are usually made? 4 words
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Metal tubing or Flexible hose
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Metal tubing also called? 3 words
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rigid fluid lines
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Rigid lines are more commonly used in stationary applications where ___________,___________,___________ are required. 4 words
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long relatively straight run
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Fluid Line sometimes need to be______ or _________?
2 words |
repaired or replaced
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Type type line is generally used around moving parts?
2 words |
Flexible hose
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Fluid lines in aircraft carry what type of fluids?
6 words |
fuel, oil, coolant,oxygen, hydraulic, nitrogen
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What are the requirement when replacing tubing?
6 words |
same size and material as original
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Tubing is tested prior to installation and is usually tested how much more than the operating pressure ?
1 word |
Double.
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A tubes will generally burst or crack because of? 12 words
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excessive vibration, improper installation, or damage caused by collision with an object
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What type of tubing was used in the early days of aviation?
1 word |
COPPER
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What type tubing is used in modern aviation? 6 words
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aluminum alloy, corrosion resistant steel or titatnium
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General purpose tubing is generally made of what type series. (low or negible fluid pressures) 5 words
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1100 H14 or 3003 H14
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Instrument line are usually made of what type series tubing? 5 words
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1100 H14 or 3003 H14
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Tubing made from 2024-T3,5052-O, and 6061-T6 aluminum alloy materials is used in general purpose systems of low and medium pressures ________to ________ such as hydraulic and pneumatic , and fuel and oil lines. 4 words
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1,000 to 1,500 psi systems
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Corrosion resistant steel tubing is identified as CRES ___,___ or ___? 3 words
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304,321,304
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Corrosion resistant steel tubing is used with pressure of ___________ psi or ___________. 2 words
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3000, greater
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Where is corrosion resistant tubing used? 8 words
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Landing gear, flaps, brakes,
and in fire zones. |
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Higher tensile strength lines has a unique feature? 2 words
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thinner walls
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The final; installation weight is steel is equal to what other type metal tubing? 1 word
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Aluminum
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Where or what locations would steel lines be used?
5 words |
risk of foreign object damage (FOD)
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Steel tubing identification markings usually have ...
8 min words |
1) manufacturer’s name or trademark,
2) the Society of Automotive Engineers (SAE) number, 3) the physical condition of the metal. |
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Titanium tubing 3AL-2.5Vis is extensively where?
2 words |
transport category
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High performance aircraft used this tubing in a lot of places? 2 words
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Titanium tubing
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What type fitting are used on Titanium tubing?
5 words |
Cryofit fittings or swaged fittings
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Oxygen system tubing normally are made of?
1 word |
Aluminum
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Spontaneous combustion could occur at low
pressures when what type metal tubing come in contact with gaseous O2. 4 words |
Titanium and titanium alloys
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It is difficult to distinguish between what 2 types of tubing. 4 words
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carbon steel or stainless
steel |
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To positively identify the material used in the original installation, one must .... 16 words
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compare code markings of the replacement tubing with the original markings on the tubing being replaced.
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What color is the color band for 7075 aluminum, alloy?
3 words |
Brown and yellow
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What color is the color band for 6061 aluminum, alloy?
3 words |
Blue and Yellow
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What color is the color band for 1100 aluminum, alloy?
3 words |
white
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What color is the color band for 2024 aluminum, alloy?
3 words |
Red
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On large aluminum alloy tubing, the alloy designation is found where? 4 words
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stamped on the surface
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On small aluminum tubing, the designation may be located where on the tubing? 3 conditions
not exact in wording Instructor will id correct wording , |
1)stamped on the surface
2) more often it is shown by a color code not more than 4" in width, painted at the two ends 3) approximately midway between the ends of some tubing |
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If the code markings are hard or impossible to read, it
may be necessary to test samples of the material by? 4 words |
hardness by hardness testing.
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What 2 types of hardness tester are commonly used?
3 words |
Rockwell or brinell
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Metal tubing is sized how? 2 words
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outside diameter (o.d.)
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Metal tubing is measure in what_______ of an inch?
1 word |
sixteenths (1/16)
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The tube diameter is found where on all rigid tubing?
1 word |
surface
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Three thing must be known about tubing when installing? 7 words
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1) material
2) outside diameter 3) thickness of the wall. |
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Scratches on the outside of tubing maybe considered what? 1 word
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Negligible
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Tube forming consist of what four processes? 4 words
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1) Cutting
2) bending 3) flaring 4) beading |
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How must small tubing be formed? 2 words
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hand bending
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The final step before flaring is ? 2 words
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squaring end
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A piece of new tubing must be cut approximately what percent longer? 2 words
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ten percent (10%)
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What type edge is attached to the tube cutter?
5 words |
knife or the burring edge
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When a tube cutter is not available what tool can be used? Describe tool? 8 words
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fine-tooth hacksaw with 32 teeth per inch.
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What is the objective in tube bending? 8 words
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obtain a smooth bend without flattening the tube.
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Using a hand bender, insert the tubing into the groove of the bender, so that the measured end is which end of form block? 1 word
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Left
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What is the degree of a single flared tubing?
2 words |
thirty-seven (37°)
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The flaring tool used for aircraft tubing has male and
female dies ground to produce a flare of 3 words |
35° to 37°.
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