peters
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A faint line running across the grain of a wood spar generally indicates? | show 🗑
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| show | Reduce weight
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| show | Glue
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| show | Compression
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| show | AC 43.13-1B
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| Which of the following conditions will determine acceptance of wood with mineral streaks? | show 🗑
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| show | Any form or amount of decay is not permitted.
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| show | They produce a small effect on grain direction.
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| show | If the same quality wood is used in both
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| show | when a joint has separated and the glue surface shows only the imprint of the wood with no wood fibers clinging to the glue.
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| show | At right angles to the grain
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| The strength classification of fabrics used in aircraft covering is based on? | show 🗑
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| fungicide and mildewicide additives are important for fabric covered aircraft, such as? | show 🗑
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| Moisture, mildew, chemicals, and acids have no effect on? | show 🗑
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| When testing the strength of Grade A cotton fabric covering an aircraft that requires only intermediate grade, the minimum acceptable strength the fabric must have is? | show 🗑
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| When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following provide an acceptable protective coating? | show 🗑
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| show | Doped on after the first or second coat of dope.
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| Finishing tape (surface tape) is used for what purpose? | show 🗑
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| show | Old wash primer coats may be overcoated directly with epoxy finishes.
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| Which defect in aircraft finishes may be caused by adverse humidity, drafts, or sudden changes in temperature? | show 🗑
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| Which type of coating typically includes phosphoric acid as one of its components at the time of application? | show 🗑
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| What is used to slow the drying time of some finishes and to prevent blush? | show 🗑
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| show | Polyurethane
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| show | reflect ultraviolet from the fabric.
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| show | Too much material applied in one coat
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| Before applying a protective coating to any unpainted clean aluminum, you should? | show 🗑
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| Which of the following is a hazard associated with sanding on fabric covered surfaces during the finishing process? | show 🗑
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| Fungicidal dopes are used in aircraft finishing as the | show 🗑
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| The classification for fiberglass reinforcement material that has high resistivity and is the most common is? | show 🗑
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| show | A specially modified twist drill.
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| A category of plastic material that is capable of softening or flowing when reheated is described as a | show 🗑
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| show | Improved strength-to-weight ratio, less density, and lower stress concentrations.
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| show | High tensile strength and flexibility.
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| Fiberglass laminate damage that extends completely through one facing and into the core? | show 🗑
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| Which of the following drill bit types work best when drilling an aramid fiber (Kevlar) composite laminate? | show 🗑
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| Composite fabric material is considered to be the strongest in what direction? | show 🗑
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| How does acoustic emission testing detect defects in composite materials? | show 🗑
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| When making repairs to fiberglass, cleaning of the area to be repaired is essential for a good bond. The final cleaning should be made using | show 🗑
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| show | Warp clock (or compass)?
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| show | an unairworthy repair
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| One method of inspecting a laminated fiberglass structure that has been subjected to damage is to | show 🗑
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| The classification for high tensile strength fiberglass used in aircraft structures is | show 🗑
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| show | Stiffness, high compressive strength, and corrosive effect in contact with aluminum.
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| show | Have mixed enough for a test sample
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| The part of a replacement honeycomb core that must line up with the adjacent original is the | show 🗑
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| Sandwich panels made of honeycomb construction are used on aircraft because this type of construction | show 🗑
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| What precaution, if any, should be taken to prevent corrosion inside a repaired metal honeycomb structure? | show 🗑
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| show | separation of the laminates.
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| show | 60:40
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| show | use short strips of fiberglass in the bonded repair.
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| The strength and stiffness of a properly constructed composite buildup depends primarily on | show 🗑
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| show | applying external heat and pressure.
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| The length of time that a catalyzed resin will remain in a workable state is called the | show 🗑
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| show | laminating on new repair plies
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| Fiberglass damage that extends completely through a laminated sandwich structure? | show 🗑
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| When conducting a tap test on a composite panel, which of the following sounds would indicate delamination? | show 🗑
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| What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called? | show 🗑
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| show | Water
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| show | filling with a putty consisting of a compatible resin and clean, short glass fibers.
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| Superficial scars, scratches, surface abrasion, or rain erosion on fiberglass laminates can generally be repaired by applying | show 🗑
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| show | Flox and chopped fibers
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| show | The growth of fungus
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| show | Dry
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| show | Shear
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| A faint line running across the grain of a wood spar generally indicates | show 🗑
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| Which of the following types of wood has the greatest strength properties | show 🗑
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| The slope of the grain of any wood used for aircraft may not be greater than | show 🗑
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| In what circumstances are the presence of pin knot clusters acceptable on a structural member of a wooden aircraft | show 🗑
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| show | At right angles to the grain
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| Which of the following is most important for successful gluing of structural wood joints. | show 🗑
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| show | 62 degrees
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| When bevel is being cut to repair a cap strip on a wing rib, the length of the beveled area should be | show 🗑
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| show | To join and reinforce intersecting structural members
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| If elongated bolt holes are discovered while inspecting a wooden wing spar, which is the minimum required repair | show 🗑
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| Holes bored for bolts which will hold fittings in place should be cut | show 🗑
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| show | As long as decay is not found in the streaked area
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| show | Circular or elliptical patches
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| When installing a plug patch to repair a plywood skin, to what size is the patch cut | show 🗑
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| The strength and stiffness of a properly constructed composite buildup depends primarily on | show 🗑
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| show | Warp
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| What reference tool is used to determine how the fiber is to be oriented for a particular ply of fabric? | show 🗑
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| The classification for high tensile strength fiberglass used in aircraft structures is | show 🗑
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| Which of the following are generally characteristic of Aramid fiber (Kevlar®) composites? 1. High tensile strength 2. Flexibility 3. Stiffness 4. High compressive strength 5. Ability to conduct electricity | show 🗑
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| show | 2, 3, and 4
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| The maximum tensile strength of fiber reinforced plastic is achieved using | show 🗑
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| Lightning protective fibers on aircraft provide | show 🗑
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| The principle advantage of polyimide resin is that it offers | show 🗑
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| show | placing it in a freezer
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| On a prepreg composite tape, once the chemical reaction within the resin has begun, | show 🗑
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| show | Film adhesives
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| Which fiber to resin (percent) ratio for advanced composite wet lay-ups is generally considered the best for strength? | show 🗑
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| show | impacts to the surface by debris
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| Corrosion is a factor with composite aircraft components when | show 🗑
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| Tap testing of a composite structure produces the most detectable results on | show 🗑
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| When inspecting a composite panel using the ring test/ coin test tapping method, a dull thud sound may indicate | show 🗑
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| Composite inspections conducted by means of ultrasonic monitoring | show 🗑
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| show | Does not have a problem of a lean or rich mix.
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| What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called? | show 🗑
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| show | allows curing in higher temperatures and pressures.
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| When curing an on-aircraft composite repair, a heat blanket is used to maintain the proper curing temperature. What is used to insure a proper contact between the blanket and the part? | show 🗑
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| show | no fewer than three
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| show | in a refrigerated environment under 0°F
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| The principle benefit of vacuum bagging over a wet layup is it | show 🗑
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| The maximum design properties of a fiberglass component are achieved at what curing temperature | show 🗑
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| show | 5 inches in diameter.
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| show | saves weight while not compromising strength.
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| show | install anchor tabs on the aluminum surface.
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| show | air from between the laminations.
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| show | Titanium
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| The principle difference between composite structure fasteners and metal structure fasteners is that composite fasteners | show 🗑
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| When drilling into composite structures the general rule is to use | show 🗑
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| The best cutting tool to use on composite honeycomb structures is a | show 🗑
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| Health problems resulting from composite repair processes are best avoided by. | show 🗑
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| Which of the following is true regarding thermoplastics versus thermosetting plastics? | show 🗑
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| show | It was heated to an excess temperature when forming
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| When drilling through acrylic plastics, a drill bit with an included tip angle of is recommended. | show 🗑
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| show | Remaining beads of cement are easily machined off.
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| show | A firm fit, then backed off one full turn.
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| show | When rivets are used, drill the mounting holes through the plastic oversize by 1/8 inch.
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| show | Kevlar composite materials with cadmium coated fasteners.
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Created by:
Lucas1999