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45 Cards in this Set
- Front
- Back
What are cracks and small surface fissures in transparent plastic materials called
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crazing
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what should you use to clean excessive masking paper adhesive residue from plastic?
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aliphatic naphtha
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What is normally used to measure scratches on plastic materials?
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optical micrometer
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To sand out scratches in transparent plastic, what is the maximum coarse number of abrasive paper that you may use?
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No. 240A
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What substance is often applied to the buffing wheel in place of, or in addition to, a buffing compound that acts similar to wax to fill hairline scratches and provides a high gloss to plastic surfaces?
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plain tallow
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How many times greater will plastics expand and contract as compared to metal?
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three times greater
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When repairing the surface of reinforced plastics and sandwich construction laminates, what should you use over the build-up repair area to work out the excess resin and air bubbles
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cellophane
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In addition to the stepped method, what other method of repair may be used to ply damage to solid laminates?
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scarfed method
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What type of coating is frequently used to protect fromtal surfaces of reinforced plastics exposed to high speeds?
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rain erosion coating
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A hole, break, or crack in one or both facings, resulting in damage to the honeycomb/core, is referred to as what type of damage.
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puncture damage
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What type of repair patch is normally used to ensure aerodynamic smoothness on aircraft control surfaces?
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flush patch
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Advanced composite materials consist of a combination of what materials?
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a combination of high-strength stiff fibers embedded in a common matrix(binder) material
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What type of inspection is used to analyze the extent of the damage and effectiveness of repair to composite materials?
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NDI
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What types of fibers are golden yellow in color and are used in many secondary structures replacing fiber glass or as a hybrid with fiber glass?
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Kevlar fibers
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What is used as a single-ply arrangement of unidirectional or woven fibers in a matrix?
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lamina
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Crazing and cracking of composite materials by ultraviolet radiation is categorized as what type of damage?
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environmental damage
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What type of damage inspection method is limited to finding defects close to the surface in composite materials?
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tap test
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What does a dark area on the developed film indicate when viewing an X-ray of composite materials?
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a thinner area of a part
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"As is" damage is classified as what type of damage?
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negligible damage
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Damage to the aircraft's skin that cannot be allowed to remain "as is" is classified as what type of damage?
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repairable damage
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Where can you find information about structural damage classification, inspection procedures, typical repair procedure, and tool and materials lists?
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SRM
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What is the classification of damage when water gets trapped in a honeycomb area?
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Class VII
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What enables you to identify and classify aircraft damage by confining the repairs to load-carrying requirements?
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repair zones
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What are the most critical zones in defining aerodynamic smoothness of control surfaces?
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leading edges of wings and tails, forward nacelles and inlet areas, and forward fuselages
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What is a good tool for removing small areas of damage on laminates, although it has a tendency to damage the honeycomb core?
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a hole saw
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What type of dust and particles are conductors, can cause shorts in electrical equipment, and contaminate hydraulic systems?
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graphite
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When making bonded repairs, what materials present health and fire hazards to personnel?
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solvents
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What types of composite material particles and dust cannot be disposed of by burning and must be packaged, tagged, and buried in an approved landfill?
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carbon and graphite fibers
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What is the primary objective of any paint finish?
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to protect exposed surfaces against corrosion and deterioration
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How can you identify the paint system of an aircraft?
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a decal or stencil located on the right side of the aircrafts aft fuselage
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by what means should chemical or mechanical paint removal be accomplished?
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the mildest means possible
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What appearance should chemical paint stripper have that indicates the paint is ready to be removed?
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wrinkled appearance
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What treatment is an extremely important part of the corrosion control process?
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chemical conversion
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What is the pot life of Epoxy-polyamide primer once the two parts are mixed?
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eight hours
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What type of evaluation should all personnel receive prior to being assigned duties involving the mixing and application of polyurethane paint system coatings?
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a preplacement and periodic medical evaluation.
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What is the closest distance that unprotected personnel should be allowed to newly painted surfaces upon completion of the painting operation?
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15 feet
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For excellent adhesion, what is the drying period for Elastromeric rain erosin-resistant coating?
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7 days
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Regarding painting specifications for letters and numerals, how is the space measurement between letters and numerals determined.
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it is always one-sixth of the height of the letter or numeral
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What are tactical paint scheme patterns based on?
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optical principles
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What type of paint spray gun is designed for small jobs?
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suction-feed type
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What is probably the cause if your paint spray gun is leaking in the front?
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the fluid needle is not seating properly
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What is the desirable distance from the surface that you should hold the spray gun in order to get the proper coverage and a smooth coat of paint?
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Between 6 and 10 inches
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What may cause dusting and rippling in a paint finish?
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excessive air pressure
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Basic sealants are classified in how many general categories?
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3 pliable, drying, and curing
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What is used to apply Class
B sealing materials? |
an extrusion gun and spatula
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