Final aircraft fabric
7-19 AMA037 Composite inspections conducted by means of ultraşonic monitoring A. Pick up the "noise" of corrosion or other deterioration occurring. B. create sonogram pictures of the areas being inspected. C. analyze ultrasonic signals transmitted into the parts being inspected.
A
7-20 AMA037 Non-destructive testing of composite structures using X-ray radiography are most effective finding defects A. occurring perpendicular to the direction of the beam. B. occurring parallel to the direction of the beam. C. in corners and around the edges of the structure.
A
8-16 AMA040 If a fisheye appearance occurs after painting, the typical cause is A. improper cleaning of the surface. B. trapped solvents in the paint mixture. C. dirt or debris in the paint mixture or airlines.
A
7-21 AMA037 What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called? A. release. B. bleeder. C. breather.
B
7-23 AMA037 Proper prepreg composite lay-up curing is generally accomplished by 1. applying external heat. 2. room temperature exposure. 3. adding a catalyst or curing agent to the resin. 4. A applying pressure. A 1 and 4 B. 2 and 3 C. 1, 3, and 4
A
7-24 AMA037 The minimum number of thermocouples used to monitor a heat cycle is A. no fewer than three. B. one per two square feet of the structure. C. two, one at the heat source and one at the furthest point of the heat source.
A
7-26 AMA037 The principle benefit of vacuum bagging over a wet layup is it A. removes excess resin uniformly from the structure. B. squeezes resin more deeply into the structure. C. prevents expansion of the structure during the curing process.
A
7-32 AMA037 Metal fasteners used with carbon/graphite composite structures must be constructed of A. high strength aluminum-lithium alloy. B. material such as titanium or corrosion resistant steel. C. any of the metals commonly used in aircraft fasteners.
A
7-34 AMA037 When drilling into composite structures the general rule is to use A. high speed, low pressure drills. B. low speed and high pressure drills. C. low speed and low pressure drills.
A
7-4 AMA045 The classification for high tensile strength fiberglass used in aiçeraft structures is A s-glass. B. G-glass. C. E-glass.
A
7-41 AMA078 When installing transparent plastic enclosures that are retained by bolts extending through the plastic material and self-locking nuts, the nuts should be tightened to a A. firm fit, then backed off one full turn. B. firm fit, plus on full turn. C. firm fit.
A
7-42 AMA078 If no scratches are visible after transparent plastic enclosure materials have been cleaned, their surfaces should be A. covered with a thin coat of wax. B. buffed with a clean, soft, dry cloth. C. polished with rubbing compound applied with a damp cloth.
A
7-43 AMA078 Which is considered good practice concerning the installation of acrylic plastics? A. When rivets are used, drill the mounting holes through the plastic oversize by 1/8-inch. B. When rivets or nuts and bolts are used, slotted holes are not recommended. C. When nuts and bolts are used, the plastic should be installed hot and tightened to a firm fit before the plastic cools.
A
7-44 AMA004 One benefit of using aramid paper as a honey comb core in composite construction is A. core in composite construction is, flame resistant. B. poor insulating properties. C. poor formability.
A
7-8 AMA037 Lightning protective fibers on aircraft provide A.less electrically resistive surface to aid in lightning dissipation. B. more electrically resistive surface to aid in lightning dissipation, C. an electrical pathway to guide static charges to lightning dissipaters on aircraft.
A
8-1 AMA007 What is the purpose of adding the Butyl alcohol to a wash coat primer? A. Slows the evaporation rate. B. Enhances the adhesion qualities of the primer. C. Quickens the drying time.
A
8-11 AMA040 When spraying topcoat or primer, how far is the spray head held from the painted surface? A. 8-10 inches B. 12-16 inches C. Determined by product data sheet based on temperature and viscosity
A
8-4 AMA007 Which type of coating typically contains phosphoric acid as one of its components? A. wash primer B. epoxy primer C. zinc chromate primer
A
What is the purpose of a Selvedge edge woven into the edges of fabric or finishing tape? A. Prevents the woven fabric from unraveling. B. Creates a smooth edge negating the need for additional finishing tape. C. Allows fabric to lay down smoothly around contoured shapes.
A
3-10 AMA040 Fabric testing using a mechanical punch tester should be done? A. On a point of fabric on which all coating layers are intact. B. On a point of fabric where there is a crack or chip in the coatings. C. On a point of fabric that was purposely left uncoated during the covering process to serve as a test point for this purpose.
B
3-16 AMA040 On a tail dragger aircraft drain grommets in the wing are usually placed A. in each rib bay at the lowest point when the aircraft is in flight attitude. B. in each rib bay at the bottom of the trailing edge. C. in each rib bay at the bottom of the leading edge.
B
3-17 AMA040 When and how is finishing tape applied on a fabric covered aircraft? A. Doped on after sealer coats but prior to the finish coat. B. Doped on after primary fabric doping but before sealer coats. C. Sewed or laced on before dope is applied.
B
3-4 AMA040 When a fabric seam must be made where there is no structure underneath, what method is typically used to attach the seam? A. reinforcing tape B. a sewed seam C. fabric cement
B
3-5 AMA040 Fabric rejuvenator is used to A. restore fabric strength and tautness to at least the minimum acceptable level. B. restore the condition of dope coatings. C. penetrate the fabric and restore fungicidal resistance.
B
3-9 AMA090 How is it determined whether a test strip of fabric must be cut from the aircraft structure to determine the fabric's strength during an annual or 100-hour inspection? A. Determined by time in service based on the manufacturer's requirement. B. Determined by an IA based on his/her knowledge and experience. C. Determined by passage or failure of a punch test.
B
6-1 AMA070 On older wood framed aircraft, when the manufacturer is no longer in business, what serves as an acceptable substitute to the manufacturer's maintenance manuals and technical specifications? A. Archived editions of the manufacturer's manual B. AC43.13 1B C. The knowledge and judgment of a certified A&P technician with Inspection authorization
B
6-13 AMA102 In cases of elongated the vicinity of bolt holes, bolt holes in a wood spar or cracks in A. it is permissible to ream the hole, plug with hardwood, and redrill. B. a new section of spar should be spliced in or the spar replaced entirely. C. the spar maybe reinforced by using hardwood reinforcing plates.
B
6-15 AMA102 Which type of plywood patch is appropriate for an overlay skin repair when no damaged structure exists under the skin? A. Splayed patch B. Surface patch C. Plug patch
B
6-7 AMA102 Pin knot clusters are permitted in wood aircraft structure provided A. no pitch pockets are within 12 inches. B. they produce a small effect on grain direction. C. they have no mineral streaks.
B
6-8 AMA102 Compression failures in wood aircraft structures are characterized by buckling of the fibers that appear as streaks on the surface A. at right angles to the growth rings. B. at right angles to the grain. C. parallel to the grain.
B
7-10 AMA037 The curing process of a mixed resin may be temporarily stopped by A. thoroughly mixing a resin inhibitor compound. B. placing it in a freezer. C. place the uncured resin in a pressure vessel above 125 psi.
B
7-11 AMA078 A category of plastic material that is capable of softening or flowing when reheated is described as A. thermoset. B. thermoplastic. C. thermocure.
B
7-16 AMA037 Corrosion a factor with composite aircraft components when A. assembled with certain aluminum alloys. B. lighting protective plies are installed. C. in proximity to fuel and other liquid.
B
7-18 AMA037 When inspecting a composite panel using the ring test/ tapping method, a dull thud may indicate A. less than full strength curing of the matrix. B. separation of the laminates. C. an area of too much matrix between fiber layers.
B
7-27 AMA045 The maximum design properties of a fiberglass component are achieved at what curing temperature A. room temperature. B, 150 *F. C. 250- 300 "F.
B
7-5 AMA037 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 A. 1, 3, and 5 B. 1 and 2 C. 2, 3, and 4
B
7-6 AMA037 Which of the following are generally characteristic of carbon/ graphite fiber composites? 1. Flexibility 2. Stiffness 3. High compressive strength 4. Corrosive effect in contact with aluminum 5. Ability to conduct electricity A. 1, 3, and 5 B. 2, 3, and 4 C. 1 and 3
B
7-9 AMA037 The principle advantage of polyimide resin is that it offers A. high flexibility. B. high temperature resistance. C. strength for load bearing structural applications.
B
8-12 AMA040 What the usual cause of runs and sags in aircraft finishes? A. Low atmospheric humidity B. Too much material applied in one coat C. Material is being applied too fast.
B
8-15 AMA040 What is the common cause of an unwanted Orange Peel finish on a painted surface? A. Contaminates in the paint or air lines.. B. Paint material is too thick (not enough reducer in the mixture). C. Paint material is too thin (too much reducer in the mixture).
B
8-17 AMA040 When removing masking tape following the painting of a trim color, at what point should the masking tape be removed to avoid damage to the underlying surface? A. Immediately following the spraying of the new color. B. When the new color paint is dry to the touch. C. When the new color paint is fully cured.
B
8-2 AMA007 Which of the following can be mixed with most solvents to reduce its flammability? A. Naptha. B. Methylene chloride. C. Acetone.
B
8-20 AMA007 When planning a paint touch-up project following a repair, how can it be determined if the existing topcoat is acrylic or epoxy based? A. Apply a coating of engine oil; the acrylic finish will soften. B. Wipe with a wet rag of MEK; the acrylic finish will bleed some color. C. Remove a small chip of the topcoat and immerse in isopropyl alcohol; within 3-5 minutes an acrylic chip will dissolve.
B
8-21 AMA007 Which chemical paint stripper type is now considered the safest to use? A. Methylene chloride systems B. EFS-2500 systems C. Benzyl alcohol systems
B
8-3 AMA007 What is the danger when using Linseed oil as protective coating on the interior of metal tubing? A. Linseed oil fumes are toxic. B. Spontaneous combustion çan occur. C. Spillage on the exterior of the tube can dissolve some primers.
B
8-5 AMA007 Which is not a benefit of epoxy primers? A. Chip resistance B. Sandable C. It's less hazardous than other primer types.
B
8-6 AMA007 Which properly-applied finish topcoat is the most durable and chemical resistant A. synthetic enamel B. polyurethane C. acrylic lacquer
B
8-7 AMA007 For use with HVLP spray characteristic of the compressed air source is guns, the critical operating A. constant high pressure. B. constant air volume. C. moisture elimination,
B
3-11 AMA040 Prior to covering, wing ribs are anchored in place to prevent movement during the covering process by A. Gussets placed at all points of attachment. B. braces placed at 8" intervals connecting one rib to the next. C. wrapping strips of fabric snugly from one rib to the next.
C
6-2 AMA102 In order to properly inspect wood structure of an aircraft, the wooden components must be A. between 60-80 degrees F. B. at a moisture content as close as possible to its principle area of operation. C. dry.
C
6-5 AMA102 Which of the following types of wood has the greatest strength properties? A. Spruce B. Western Hemlock C. Douglas fir
C
6-9 AMA102 Which statement about wood decay is correct? A. Decay that occurs before the wood is seasoned does not affect the strength of the finished piece. B. A limited amount of certain kinds of decay is acceptable in aircraft woods since decay affects the binding between the fibers and not the fibers themselves. C. Decay is not acceptable in any form or amount.
C
7-12 AMA037 Which not an advantage of dry fiber composite procedures? A. Materials have a long shelf life. B The composite can cured at room temperature. C. Dry fiber shop procedures less messy than prepreg procedures.
C
7-13 AMA037 Sandwich panels made of honeycomb construction are used on modern aircraft because this type of construction A. is lighter than single sheet skin of the same strength and is more corrosion resistant. B. may be repaired by gluing replacement skin to the inner core material with thermoplastic resin. C. has high strength weight ratio.
C
7-15 AMA037 The most frequent cause of damage to composite parts are A. improper construction techniques. B. static electrical buildup, C.impacts to the surface by debris.
C
7-2 AMA037 Composite fabric material is considered to be the strongest in what direction? A. Fill B. Bias C. Warp
C
7-22 AMA037 The principle advantage to curing composite parts with an autoclave versus a standard oven is A. eliminates the need for vacuum bagging. B. allows curing in higher temperatures and pressures. C. Jallows circulation of the heated air for a more consistent temperature over the entire part.
C
7-25 AMA037 To prevent premature curing, all prepreg materials must be stored A. in a vacuum sealed environment. B. in a refrigerated environment under 32 degrees f. C. in a refrigerated environment under 0 degrees F.
C
7-28 AMA037 A potted compound repair on honeycomb can usually be made on damages less than A. 2 inches in diameter. B. 1 inch in diameter. C. .5 inches in diameter.
C
7-3 AMA037 What reference tool is used to determine how the fiber is to be oriented for a particular ply of fabric? A. Fill clock (or compass) B. Bias clock (or compass) C. Warp clock (or compass)
C
7-30 AMA037 Which is not a step to ensure proper bonding of a composite patch to an aluminum surface A. cure the film adhesive material at 250 degrees F. B. anodize the aluminum surface. C. Install anchor tabs on the aluminum surface.
C
7-33 AMA037 The principle difference between composite structure fasteners and metal structure fasteners is that composite fasteners A. are made from the same composite material to eliminate corrosion. B. are more electrically conductive to aid in lightning dissipation. c. have larger bearing surfaces.
C
7-35 AMA037 The best cutting tool to use on composite honeycomb structures is a A. water jet cutter. B. fine tooth saw carbide saw blade. C. toothless diamond coated saw blade.
C
7-37 AMA078 Which is not a characteristic of acrylic plastics A. may be softened by heat. B. dissolves in organic solvents. C. may be formed into shape at room temperatures.
C
7-38 AMA078 If an aircraft's transparent plastic enclosures exhibit fine cracks which may extend in a network over or under the surface or through the plastic, the plastic is said to be A. brinelling. B. hazing. C. crazing.
C
7-40 AMA078 Which is true regarding the use of polymerizable cements with transparent plastics? A. They expand as the cement hardens. B. They produce a hazy residue and should be used only around edges or under fairings. C. Beads left by polymerizable cements are readily machined off.
C
7-7 AMA037 Which would be an acceptable use for Boron fiber composite material? A. A wing or tail surface leading edge B.A flexible landing gear strut C.The repair of a damaged aluminum wing skin
C
Which statement is true regarding paint system compatibility? A. Acrylic nitrocellulose lacquers nitrocellulose finishes. may be used over old not be used directly B. Old type zinc chromate primer may for touchup of bare metal surfaces. C. Old wash primer coats may be overcoated directly with epoxy finishes.
C
8-18 AMA088 If registration numbers are to be applied to an aircraft with a letter height of 12 inches, what is the minimum space required for the registration mark N1683C? Note: 2/3 x height = character width 1/6 x height = width for 1-1/4 x 2/3 height = spacing 1/6 x height = stroke or line width A. 52 inches. B. 48 inches C. 57 inches
dont know check fix
7-29 AMA037 The proper sequence of procedures to repair a damaged composite component in which the damage extends to the component's core is 1. remove the damage. 2. remove water from damage area. 3. install the honeycomb core and repair plies. 4. prepare the damaged area. 5. inspect the damage. 6. vacuum bag the repair. A. 5, 1, 2, 4, 3, 6 B 5, 2, 1, 4, 3, 6 C. 5. 1. 4, 3, 2, 6
B
7-31 AMA037 The purpose of a double vacuum de-bulk process when repairing laminated fiberglass structures is to remove A. water from between the laminations. B. air from between the laminations. C. dirt and foreign substances from between the laminations.
B
7-36 AMA037 Health problems resulting from composite repair processes are best avoided by A. use of a high quality respirator. B. consulting material data safety sheets (msds). C. consulting AC43.13 section 1B.
B
7-39 AMA078 When drilling through acrylic plastics, a drill bit with an included tip angle of is recommended. A. 90 degrees B. 150 degrees C. 120 degrees
B
8-14 AMA007 What is used to slow the drying time of some finishes and to prevent blush A. reducer B. retarder C. rejuvenator
B
3-13 AMA040 When heat shrinking fabric on a wing, in order to get even tightness and a wrinkle free result, it is best to work A. from the root end of the wing outwards to the tips. B. from the center section first, then work outwards to the ends. C. from each end first, then work inwards to the center.
C
3-15 AMA040 Finishing tape (surface tape) is used for what purpose A. to provide additional anti-wear resistance under reinforcement tape. B. to help prevent "ripple formation" in covering fabric. C. to provide additional wear resistance over the edges of fabric forming structures.
C
3-3 AMA040 Which type of fabric tape is used on protrusions such as a strut fitting to help prevent the base fabric from tearing? A. reinforcing tape B. surface tape C. anti-chafe tape
C
3-6 AMA040 Fungus and mildew have no effect on A. Cotton fabric B. Linen fabric C. Polyester fabric
C
3-7 AMA040 The determining factor(s) for the selection of the correct weight of textile fabric to be used in covering any type of aircraft is the A. speed of the aircraft. B. maximum wing loading. C. speed of the aircraft and the maximum wing loading.
C
6-11 AMA102 When a bevel is being cut to repair a cap strip on a wing rib, the length of the beveled area should be A. equal to the thickness of the rib cap strip. B. 16 times the thickness of the rib cap strip. C. 10 times the thickness of the rib cap strip.
C
8-10 AMA007 What is the most important aspect of insuring a successful painting operation? A. Temperature and viscosity are at the manufacturer's requirement. B. The skill of the painter when handling the spray gun. C. The preparation of the surface to be painted.
C
8-13 AMA040 Which defect in aircraft finishes may be caused by adverse humidity, drafts, or sudden changes in temperature? A. orange peel B. pinholes C. blushing
C
8-8 AMA007 What is not an advantage of airless spraying equipment compared to an air atomized system? A. reduction in overspray B. quality of the finish C. Increased transfer efficiency
C
8-9 AMA007 When measuring the viscosity of a primer or topcoat, it is important that the temperature of the material be A. equal to the room air temperature. B. equal to the surface temperature of what is being sprayed. C. approximately 73.5 degrees °F (23 degrees °C).
C
3-12 AMA040 When a seam is required in an area of critical airflow such as a leading edge, the minimum amount of fabric overlap is A. 2-4 inches. B. 4-6 inches. C. two times the diameter of the leading edge structure to which it is wrapped.
A
3-14 AMA040 Because of the propeller slipstream, rib lace spacing is closer than outside the slipstream area: the size of the slipstream area is considered to be A. the propeller diameter plus one additional rib. B. twice the propeller diameter. C. the propeller diameter added to the distance from the propeller to the leading edge.
A
3-18 AMA040 Aluminum-pigment in dope is used primarily to A. reflect ultraviolet from the fabric. B. aid in sealing out moisture from the fabric. C. provide a silver color.
A
3-2 AMA088 Recovering an aircraft with worn fabric with a different type of fabric which has been approved for that aircraft by an STC is considered by FAA to be A. a major alteration. B. a minor repair. C. a major repair.
A
3-8 AMA088 If an aircraft was originally certified with a Grade A Cotton covering with a breaking strength of 80 pounds, but then the cotton covering was later replaced with a polyester fabric with a breaking strength of 70 pounds, at what tested strength must the new fabric again be replaced A. 56 pounds. B. 49 pounds. C. 80 pounds.
A
6-10 AMA102 How many of the below factors are contributing to cure time of aircraft glues? 1. clamping pressure 2. ambient temperature 3. humidity 4. porosity of the wood A. one of the factors above B. two of the factors above C. three of the factors above
A
6-12 AMA021 What is the purpose of a gusset plate used in the construction and repair of aircraft structures? A. To join and reinforce intersecting structural members B. To provide access for inspection of structural attachments. C. To hold structural members in position temporarily u the permanent attachment has been completed.
A
6-14 AMA102 Holes bored for bolts which will hold fittings in place should be cut A. to match the hole diameter of the fitting. B. .002" undersized to ensure tight fit through the wood. C. .002" oversized to allow for sealer between the fitting and the wood.
A
6-16 AMA102 When patching a plywood skin, abrupt changes in cross sectional areas which will develop dangerous stress concentration should be avoided by using A. circular or elliptical patches. B. square patches. C. doublers with any desired shaped patches.
A
6-3 AMA102 Glued joints are typically designed to take what type of load? A. shear loads B. tension loads C. both shear and tension loads
A
6-4 AMA102 A faint line running across the grain of a wood spar generally indicates A. compression failure. B. shear failure. C. decay.
A
6-6 AMA102 The slope of the grain of any of wood used for aircraft may not be greater than А. 1:15. B. 1:30. C. the width to length ratio of that piece.
A
7-1 AMA037 The strength and stiffness of a properly constructed composite buildup depends primarily on A. the orientation of the plies to the load direction. B. the ability of the fibers to transfer stress to the matrix. C. a 60 percent matrix to 40 percent fiber ratio,
A
7-14 AMA037 Which fiber to resin (percent) ratio for advanced composite wet lay-ups is generally considered the best for strength? A 60:40 B. 40:60 C. 50:50
A
7-17 AMA037 1. When performing a ring (coin tap) test on composite structures, a change in sound may be due to damage or to transition to a different internal structure. 2. The extent of separation damage in composite structures is most accurately measured by a ring (coin tap) test. Regarding the above statements. A. Only No. 1 is true. B. Only No. 2 is true. C. Both No. 1 and No. 2 are true.
A
