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chapter 10 fluid lines and fittings
MATERIALS AND PROCESSES FINAL STUDY GUIDE
34
Aviation
Professional
12/06/2017

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Term
annealed
Definition
copper tubing may be ____ to restore it to a soft condition.
Term
alluminum 11000-h14
5052 alluminum O
corrosion resistant steel, either annealed or 1/4 hard
Definition
indicate the material that isd likely to be used for rigid lines carring each of the following types of fluids
low pressure vent air
medium pressure hydraulic fluid
high pressure oxygen
Term
oputside
Definition
the size of rigid tubuing is determined by it (inside or outside) diameter.
Term
1/4
3/8
3/4
Definition
indicate the outside diameter of eacg dash numbers of rigid tubing
4
6
12
Term
outside
Definition
to find the inside diameter of rigid tubing, twice the wall thickness must be subtracted for the (outside or inside) diameter.
Term
presetting
Definition
although the use of flareless fittings eliminates flaring the tube, anothr operation, refereed as _____ is necessary prior to installation of new flare less fittings
Term
1 tp 1/16
Definition
should be turned ______ turn after the ferrule is tight against the presetting tube
Term
indentation
50%
back and forth
Definition
3 characteristics of a properly preset ferrule on a piece of tubing:
a uniform ____ around the end of the tube.
the material of the tube should be raised up to at least ____ of the thickness of the ferrule
the ferrule should not be able to move (around or back and forth) on the tube
Term
is not
Definition
rigid tubing (is or is not) limited to uses in areas where a long straight run is possible.
Term
45
37
Definition
automotive fittings are ____ degrees
aviation fittings are _____ degrees
Term
3/8
Definition
soft aluminum tubing having an outside diameter of ____ inches or smaller may by double flared
Term
wedging
Definition
tapered pipe threads seal by a _____ action between the external male threads and the internal female threads
Term
AC
Definition
the AC fitting looks a great deal like AN and MS fittings except that the threads of the (AN or AC) go all the way up the flare cone.
Term
blue
black
gray or yellow
Definition
color dye for each:
alluminum alloy fittings of AN and MS design:
steel fittings of AN and MS design:
AC fitting:
Term
high
Definition
MS flare-less fittings are designed primarily for (high or low) pressure hydraulic system
Term
10%
Definition
aluminum allot tubing with scratches or nicks that are no deeper than ____ percent of the wall thickness may be repaired
Term
20%
Definition
a det of less than ____ percent of the diameter of the tube is permitted, if it is not in the heel opf the bend
Term
one
Definition
all runs of rigid tubing must have at east ____ bend between the fittings to absorb strain.
Term
22
Definition
a 12 rigid fuel line should be supported at least every ____ inches
Term
fingertight
1 to 1 1/2
Definition
a hose clamp should be tightned from ___ to ____ turns with a wrench or pair of pliers after it is tightened by hand.
Term
cold flow
Definition
the condition indicated by deep,permanent impressions in hose caused by over tightening hose clamps is know as ____ ____
Term
Butyl
Definition
what type of flexible hose liner is compatible with phosphate ester base hydraulic fluid ____
Term
teflon
Definition
what type of flexible hose line is compatible with nearly evry liquid used _____
Term
inside
Definition
the size of a flexible line is determined by it (inside or outside) diameter.
Term
rough
Definition
a medium pressure flexible hose has a (rough or smooth) outer cover.
Term
smooth
Definition
a high-pressure flexible hose has a (rough or smooth) outer cover.
Term
black
green
Definition
colors
minerals base hydraulic fluid
phosphate base hydraulic fluid
Term
socket
nipple
nut
Definition
medium pressure reusable fittings are made up of 3 pieces
Term
fitting
Definition
a ____ may be screwed into the nut of a low pressure hose fitting to hold the nipple during the assemble.
Term
5 and 8
Definition
flexible fluid lines must have between ___ and ___ percent slack between the fittings
Term
red
yellow
blue yellow
green
maroon
Definition
color code for rluid lines
fuel
lubrication
hydraulic fluid
breathing oxygen
fire extinguishing agent
Term
flammable
Definition
line that are used to carry fluids that may be physically dangerous (such as oxygen, nitrogen or freon) may be marked ______
Term
lay
Definition
the stripes running along the length of a flexible hose, usually containing information needed to identify the hiose, is call the ____ line
Term
twisted
Definition
the lay line serves not only to identification but to indicate whether or not the line was _____ when installed.
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