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32 Cards in this Set
- Front
- Back
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How are copper tubing used to restore its soft condition?
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by anneling
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What materials are most likely used for rigid lines carrying each of the types of fluids a. low pressure ventilating air b.medium pressure hydraulic fluid c.High pressure oxygen |
a. 1104-h14 or 3003-h14 aluminum alloy b.5052 aluminum alloy c.stainless steel |
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how is the size of rigid tubing determined?
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By the outside diameter
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Indicate the outside diameter of each of these dash numbers if rigid tubing -4, -6, -12? |
-4 is 4/16 or 1/4 -6 is 6/16 or 3/8 -12 is 12/16 or 3/4 |
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To find the diameter of rigid tubing, twice the wall thickness must be subtracted from what diameter?
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The outside diameter
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Although the use of flareless fittings eliminates flaring the tube, another operation referred to as _ is necessary prior to installation of new flareless fittings.
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presetting
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When presetting flareless fittings on 3/8 inch aluminum alloy tubing, the nut should be turned _ after the ferrule is tight against the presetting tube.
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1 to 1/6
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three characteristics of a properly preset formula on a piece of tubing? a. What around the tube end? b.Material of the tube should be raised up to atleast _ percent of the thickness of the ferrule leading edge. c.The ferrule should not be able to move _ on the tube. |
a.identification b.50 percent c.back and forth |
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Is a rigid tube limited to uses in areas where a long straight run is possible.
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is not
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Flare angles for each type of fitting a.automotive fitting b. aviation fitting |
a.45 degree b.37 degree |
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Soft aluminum tubing has an outside diameter of _ or smaller may be double flared?
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3/8
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Tapered pipe threads seal by _ action between the external male threads and the internal female threads.
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wedging
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The ac fitting looks a great deal like AN and MS fitting except the threads of the _ go all the way up to the flare cone.
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AC
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Color dye used to identify each type of fitting a.aluminum alloy fitings of AN and MS design b.steel fitting of AN and MS design c.AC fittings |
a.blue b.black c.gray/yellow |
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MS flareless fittings are designed primarily for _ type of pressure hydraulic system applications.
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high
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Aluminum alloy tubing with scratches that are no deeper than _ percent of the wall thickness may be repaired?
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10 percent
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A dent of less than _ percent of the diameter of the tube is permitted, if it is not in the heel of a bend. |
20percent |
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ALL runs of rigid tubing must have at least _ bend between th fittings to absorb strain.
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one
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A-12 rigid fuel line should be supported at least every _ inches
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22
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Color codes for fluid lines carrying these fluids? a.fuel b.lubrication c.hydraulic fluid breathing oxygen e.fire extinguishment agent |
a.red b.yellow c. Blue/yellow d.breathing oxygen e.brown |
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Lines that are used to cary fluids that may be physically dangerous such as oxygen,nitrogen, and Freon, may be marked?
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PHDAN
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What type of flexible hose liner with phosphate ester base hydraulic fluid? |
Butyle |
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What type of flexible hose line is compatible with nearly every liquid used? |
Teflon |
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The size of a flexible line is determined by what diameter? |
Inside |
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A medium pressure flexible hose has what type of outer cover. |
A smooth outer cover |
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Material based with hydraulic fluid? Phosphate ester base hydraulic fluid? What color |
Black Green |
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Swaged on fittings _ reusable |
Are not |
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Medium pressure reusable fittings are made up of? |
Nipple, socket, and nut |
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_ may be screwed into the nut of a low pressure hose fitting to hold the nipple during assembly, a special tool is not required |
Fitting |
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Flexible fluid lines must have between percent slack between the fitting |
5 and 8 |
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The stripe running Along the length of a flexible hose, usually containing the information needed to identify the hose, is called ? |
The lay line |
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The lay line serves not only for identification but to indicate whether or not the line was _ when it was installed |
Twisted |
