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LO cdcs part 2
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  • 問題数 63 • 8/12/2023

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    問題一覧

  • 1

    before applying an aerodynamic smoothing coumpound to repair seams

    clean the area with approved solvents

  • 2

    the method you use to remove excess aerodynamic smoothing compound from seams depends on the

    hardness of the compound

  • 3

    what type of seal is produced by sandwiching sealant between mating surfaces

    faying

  • 4

    when preparing to mix a two-part sealant, you mix the sealant in according with the

    manufaturer’s instructions

  • 5

    to clean dirt and grease from a surface to be sealed, you use

    an approved solvent/cleaner

  • 6

    when the TO calls for a permanent type of seal between two parts, you install a

    faying surface seal

  • 7

    sealants that have a long work-life normally have a

    long curing period

  • 8

    what do you use to fabricate a sealant removal tool

    plastic

  • 9

    an atom that has gained or lost electrons and has acquired and electrical charge is called

    an ion

  • 10

    corrosion in an electrochemical cell always starts an the

    surface of the metal

  • 11

    what is their rate of corrosion when the anode is smaller, in relation to the cathode in the electrochemical corrosion cell

    rapid and severe

  • 12

    metals such as stainless steel and titanium that corrode slowly are referred to as

    cathodic

  • 13

    sone metals have the ability to become electrochemically inactive or passive under certain conditions because of the formation of

    oxide film

  • 14

    on a polished surface, uniform surface corrosion is first seen as

    general dulling of the surface

  • 15

    pitting corrosion of aluminum or magnesium is first noticed as

    white powdery deposits

  • 16

    when preforming a corrosion inspection, which tool would you use to dislodge blisters or bubbles

    plastic scraper

  • 17

    which formula would you use to determine maximum corrosion pit depth when using a dept gauge

    (a+b)/2-c= depth

  • 18

    when inspecting exhaust path.s for corrosion, what areas should be inspected because they cannot be reached with normal cleaning

    seams and fairings

  • 19

    what is the first step in a general corrosion insp

    ensure the area has been thoroughly cleaned

  • 20

    corrosion that appears as blistering, exfoliation, and scaling or flaking is classified as

    severe

  • 21

    prior to corrosion removal, what must be determined

    allowable damage removal limits

  • 22

    material compatibility refers to using a medium that will

    not cause additional corrosion

  • 23

    which motion should you use when removing corrosion with a hand held wire brush

    linear

  • 24

    when removing corrosion with pneumatic sander, how do you keep the sander from digging into the metal

    start the sander before it touches the metal

  • 25

    after all visible corrosion is removed, how many additional mils should be removed

    2

  • 26

    what is the last step in the general corrosion removal process

    treat the surface and apply protective coating

  • 27

    the paint edges around the chemically stripped areas are feathered in order to

    ensure a smooth, overlapping transition between the old and new paint surface

  • 28

    the two categories that corrosion preventive coumpounds are separated into include

    water displacing and non-water displacing

  • 29

    low viscosity CPC are best suited for what type of application

    spraying

  • 30

    which is not a reason for immediate cleaning

    poor aerodynamic smoothness

  • 31

    when would an aircraft that took off four times over salt water require a clear water rinse

    after every flight

  • 32

    what conditions do you consider when you are choosing a cleaning method

    type of metal and degree of cleaning required

  • 33

    standards for paint such as color, drying time, and adhesion are stipulated by the

    military specification

  • 34

    solid waste can be any material that is essentially waste-like, abandoned, or

    recycled

  • 35

    at a minimum, material data safety sheet are made available to

    everyone

  • 36

    the four characteristics of hazardous waste are ignitableity, corrosivity, reactive, and

    toxicity

  • 37

    an individual item of supply that has a definite non-extendible period of shelf-life is considered type

    1

  • 38

    an individual item of supply that has an extendable shelf-life is considered type

    2

  • 39

    90 day accumulation sites for haz waste containers should be able to contain the volume of

    a largest container or 10%of the volume of the container, whichever is greater

  • 40

    how often should haz waste containers be insp for release problems

    weekly

  • 41

    what percentage of low observable coatings must be separated as classified or unclassified prior to disposal

    100%

  • 42

    the type of chemical remover to be used depends on the

    type of organic finish system to be removed

  • 43

    when do you mix chemical paint remover

    immediately before use

  • 44

    what special requirements must be met when mechanically removing coatings on steel and titanium alloy

    part must be grounded and area must be well be grounded

  • 45

    when using the plastic media blasting cabinet blaster, check the media level

    prior to use

  • 46

    what is the first step when preparing a part for blasting in the plastic meds blasting booth

    thoroughly clean the substrate

  • 47

    he purpose of adding pigment to paint is to develop

    color

  • 48

    after checking the shelf life of your coating material you should

    mix the material per manufacturers instruc

  • 49

    what will happe if two-component materials are not throughly mixed with each other and in the exact specified proportions

    curing and adhesion problems will occur

  • 50

    using a #2 zahn cup, how is the viscosity expressed

    seconds through the cup

  • 51

    what type of spray gun is made with an external airtight container

    pressure-feed

  • 52

    the distance that you hold the spray gun nozzle from the surface depends upon the

    desired width of the spray pattern and type of gun used

  • 53

    when using parallel strokes with a spray gun, the spray pattern should

    overlap 50% of the previous stroke

  • 54

    when should you dismantle a spray gun

    after each use

  • 55

    what effect does low humidity have on moisture curing coating

    slows the cure process

  • 56

    what is the coarsest grit of abrasive paper that should be used to scuff-sand an already coated aircrat

    120

  • 57

    when painting, what must you do just prior to primer or topcoating

    perform a solvent wipe down

  • 58

    what is the minimum number of readings you need to take when using a wet film gauge to measure coating thicknesses

    6

  • 59

    what is the most common cause of coating failure

    inadequate surface preparation

  • 60

    the probable cause of a protective coating spray pattern with a split spray is

    air and fluid feeds not properly balanced

  • 61

    at is a common cause of streaking when spraying painting

    dirty air cap

  • 62

    on fixed-wing aircraft, the national star insignia is listed on the

    upper left and lower right of the wings, and both sides of the fuselage

  • 63

    what is the next step after the plotter cuts your vinyl

    the undesirable material must be weeded