ASA Sheet Metal and Non-Metallic Structures Practice Test

These questions are part of the practice quiz. Start practicing

• What is the primary method by which acoustic emission testing identifies defects in composite materials?
• What is the main reason for properly spacing rivets in aircraft design?
• What type of corrosion is primarily indicated by discoloration at rivet locations?
• Which rivet is specifically used for riveting nickel-steel alloys?
• When calculating the dimensions in a flat layout, what is the first step to take?
• What does the designation MS20426AD-6-5 indicate about the countersunk rivet?
• What does the rivet gauge refer to?
• In repairs involving stringers on the lower surface of stressed skin metal wings, how are they viewed in terms of criticality?
• What does a joggle in removed rivet shanks typically indicate?
• Why should hole filling fasteners not be used in composite structures?
• What type of rivets are typically used for riveting steel parts?
• What is the preferred method for making permanent repairs on composite structures?
• In which direction is composite fabric material considered to be the strongest?
• What is the recommended action when you encounter fiberglass damage in a laminated structure?
• Which characteristics are typical of aramid fiber (Kevlar) composites?
• What is a common sign of internal damage to laminated honeycomb structures?
• Why are clad aluminum alloys preferred for use in aircraft?
• What is a common treatment for alloys used in aviation fasteners?
• What is the sharpest bend that can be made in metal without critically weakening it known as?
• What is the minimum edge distance for aircraft rivets?
• Aircraft structural units built from sheet metal are typically:
• What is a characteristic of acrylic plastics?
• What methods are generally used for proper pre-preg composite lay-up curing?
• Which of the following is a characteristic of rain erosion on fiberglass laminates?
• Using traditional fiberglass repair techniques for advanced composites will likely result in what?
• Which is the correct method for applying pressure while using a file?
• What is the potential for repairing fiberglass damage that extends completely through a laminated sandwich structure?
• Which factor determines the minimum space between rivets during installation?
• What precaution should be taken to prevent corrosion in a repaired metal honeycomb structure?
• What is the maximum edge distance recommended when attaching plates with rivets?
• What maintenance practice is recommended for aluminum alloys to prevent corrosion?
• When drilling stainless steel, what should the included angle of the drill be?
• What is the effect of using inadequate support during rivet installation?
• How should you inspect a laminated fiberglass structure that has been damaged?
• What should be used to achieve a secure fit when fastening transparent enclosures?
• What is the principal advantage of using a countersunk rivet?
• What is the primary function of the flute section of a twist drill?
• Which characteristics are generally associated with carbon/graphite fiber composites?
• What reference tool is used to determine fiber orientation for a ply of fabric?
• How does the coefficient of expansion for most plastic enclosure materials compare to metals?
• After cleaning transparent plastic enclosure materials, how should their surfaces be treated if no scratches remain?
• What can be used to repair superficial scars or scratches on fiberglass laminates?
• When installing transparent plastic enclosures held by bolts and self-locking nuts, how should the nuts be secured?
• What is the primary reason for using metal honeycomb construction in sandwich panels for modern aircraft?
• What is the recommended length for a rivet joining a .032-inch and .064-inch aluminum alloy?
• What is the purpose of longerons and stringers in a semi-monocoque fuselage?
• A plastic material that softens or flows when reheated is known as what type of plastic?
• What is the main purpose of using a sealant on aircraft structures?
• What term describes the part of the material that experiences no stress when bending metal?
• What is the amount of material required to make a 90° bend in inches?
• Regarding the inspection of a critically loaded stressed skin metal wing assembly, what indicates genuine rivet tipping?
• What is the recommended practice when drilling stainless steel sheet material compared to aluminum alloy sheet?
• What is the correct procedure when using a reamer to finish a drilled hole?
• When working with aluminum, it is recommended to hold which of the following to a minimum?
• Which type of material would most likely require special handling to avoid warping during drilling?
• For a simple L-shaped bracket, what bend radius requires the greatest amount of material?
• Which of the following is NOT a characteristic of repairs made using aluminum rivets?
• Which statement is true regarding cantilever wings?
• What type of loads is primarily responsible for most rivet failures?
• How large should the shop head of a rivet be compared to its shank diameter?
• When making a sheet metal repair with two pieces of 0.0625-inch aluminum riveted together, what is the length of the rivets used?
• In regard to performing a ring (coin tap) test on composite structures, which statement is true?
• Which part of the fuselage is necessary to maintain structural integrity during flight?
• What must be considered regarding rivets used in composite structures?
• What is considered good practice when installing acrylic plastics with rivets?
• For joining a 0.032-inch thick aluminum sheet to a 0.064-inch thick aluminum sheet, what length of rivet should be chosen?
• Which element is NOT part of the identification information on a Dzus fastener?
• How many MS20470 AD-4-6 rivets are needed to attach a 10 x 5 inch plate using a single row with minimum edge distance and 4D spacing?
• In what unit is the length of the Dzus turnlock fastener stud measured?
• What are the longitudinal structural members of a semi-monocoque fuselage called?
• A well-designed rivet joint will predominantly expose the rivets to which type of load?
• What is the term used to describe the curvature of a bend in sheet metal?
• Which type of bit should be used for drilling holes in Plexiglas?
• How can the neutral axis of a bend be found without a bend allowance table?
• Under what condition are type A rivets typically not recommended for use?
• What does a black 'smoky' residue from rivets on an aircraft typically indicate?
• Which methods may be used to inspect fiberglass/honeycomb structures for entrapped water?
• What is the main function of the rivet diameter in metal work?
• Which part of a replacement honeycomb core must align with the adjacent original core?
• In the 2017-T36 aluminum alloy designation, what does the number '2' indicate?
• Which factor is crucial in determining the load-carrying capacity of a rivet joint?
• What is the included angle of a twist drill for soft metals?
• What is primarily affected by the degree of bend in a flat pattern layout?
• What property of skin or covering contributes to the monocoque design's strength?
• The separation of laminates in composites can be detected through which method?
• What distinguishes Lockbolt fasteners in their design?
• What is the usual diameter of damage on honeycomb that a potted compound repair can handle?
• Which material is essential for metal fasteners used with carbon/graphite composite structures?
• When attaching rivets, which type is suitable for a 100° countersink?
• When repairing fiberglass laminate damage that is limited to the first layer, what is the recommended repair material?
• What is the minimum spacing for a single row of aircraft rivets?
• What is the primary purpose of a joggle in metalwork?
• In what situation is a longer rivet preferable when joining aluminum sheets?
• What factor allows for machine countersinking when flush riveting?
• What is a key factor in determining the success of a repair in composite materials?
• What do the identifying marks on the heads of aluminum alloy rivets signify?
• What is typically done to limit warpage in bonded repairs of flat surfaces?
• What is the term used for fine cracks that may extend in a network over or under the surface of transparent plastic enclosures?
• What fiber to resin ratio is generally deemed best for strength in advanced composite wet lay-ups?
• Why is 2017 and 2024 aluminum commonly used in aircraft construction?
• Which type of structural repair is considered less critical regarding strength in tension?
• What method is typically used to harden aluminum alloys in aircraft construction?
• What does a dull thud indicate when inspecting a composite panel using the ring test?
• What method can reduce warping when repairing large, flat surfaces with polyester resins?
• During repairs, which of the following is essential to achieve a good bond in fiberglass?
• How are Alloy 2117 rivets treated before they are driven?
• Which type of cutting fluid is acceptable for machining composite laminates?
• Which property of a rivet is most affected by temperature changes during operation?
• How should the bumping operation start when forming aluminum over a mold?
• When bending a piece of aluminum alloy, how should the layout be made concerning the grain of the sheet?
• When selecting materials for repair, which one is the most significant for ensuring longevity and strength?
• How can shallow scratches in sheet metal be repaired effectively?
• When bending metal, which area compresses while the outer curve stretches?
• When repairing puncture-type damage to a laminated honeycomb panel, how should the edges of the doubler be tapered?
• What is the function of a gusset or gusset plate in construction and repair of aircraft structures?
• When laying out a sheet metal fitting with a single bend, what should you do to account for stretching?
• What is one effective method to ensure a properly prepared batch of matrix resin?
• In order for a new safety belt installed on an aircraft to meet compliance, it must conform to the requirements in which document?
• Why should 2017 and 2024 aluminum alloy rivets be refrigerated after heat treatment?
• What is the measurement used to determine the length of flat A in the provided context?
• What are the dimensions of an MS20430AD-4-8 rivet?
• What is the consequence of using improperly sized rivets in metal joining?
• In sheet metal work, what does “bend radius” particularly refer to?
• Unless otherwise specified, what is the radius of a bend in sheet metal?
• How is the sight line on a sheet metal flat layout for bending measured?
• What type of rivet is selected for joining sheets of aluminum in aviation applications?
• What precaution should be taken when riveting dissimilar metals together to avoid electrolytic action?
• When using balsa wood to replace a damaged honeycomb core, how should the grain be oriented?
• What cleaning agent should be used for the final cleaning before repairing fiberglass?
• What is the primary alloying agent in 2024-T3 aluminum alloy?
• What must be considered when choosing a drill for materials like Plexiglas?
• What is the name of the material used within the vacuum bag pressure system to absorb excess resin during curing?
• When straightening members made of 2024-T4 aluminum, you should:
• Why is a DD rivet heat treated before use?
• What typically characterizes the machining process of stainless steel compared to aluminum?
• What components make up the Dzus turnlock fastener?
• Threaded rivets (Rivnuts) are primarily used to:
• What is the general rule for finding the proper rivet diameter?
• Which factor does NOT need to be considered when determining minimum rivet spacing?
• What should be done first when hand forming a streamline cover plate using a form block?
• What is the classification for the most common fiberglass reinforcement material with high resistivity?
• What is the dimension D obtained from a setback of .252 and a bend allowance of .345?
• What must cabin upholstery materials installed in current standard category airplanes be?
• How can you distinguish between aluminum and aluminum alloy?
• What is the included angle of a twist drill for hard metal?
• In metalworking, which of the following would NOT typically be used as a means of inspection?
• Why are protective separators critical when riveting dissimilar metals?
• What are the most critical factors needed to create a flat pattern layout?
• What is the standard method for cementing transparent plastics?
• What is the recommended method of filing soft metals like lead or aluminum?
• Why is it important to back off one full turn when securing nuts on transparent plastic enclosures?
• Which rivet can be used as received without further treatment?
• What is the minimum allowable overlap for a single-lap sheet splice using a double row of 1/8-inch rivets on aluminum skin?
• What information is identified by the markings on the head of a Dzus fastener?
• What is the length of flat A in the specified context?
• What is the recommended approach if a rivet set does not fit a specific rivet type properly?
• In rivet terminology, what does rivet pitch refer to?
• What feature do most rivets used in aircraft construction possess?
• Which type of rivet is specifically used for riveting magnesium alloy structures?
• What is one of the main advantages of Hi-Lok type fasteners?
• What does a monocoque fuselage primarily rely on for its strength?
• When repairing fiberglass with resin, what catalyst is recommended?
• Why is the treatment of components important in metalworking?
• Which factor is least critical when determining the radius for bending a metal part?
• If a piece of flat stock is to be bent to form a closed angle of 15°, through what angle must it be bent?
• What is the best procedure to follow when removing a solid shank rivet?
• What must be minimized on parts fabricated from Alclad 2024-T3 aluminum sheet stock?
• When is the full shear strength of an MS20470D rivet attained?
• Which material addition provides strength for the repair of damaged fastener holes in composite panels?
• The strength and stiffness of a properly constructed composite buildup largely depends on what factor?
• When considering rivet spacing, what is the importance of transverse pitch?
• What are some benefits of using microballoons when repairing laminated honeycomb panels?
• What is the major design consideration when repairing a small hole on a metal stressed skin?
• What is the optimal tool characteristic for a rivet set used on MS20470 rivets?
• What is the minimum edge distance allowed for aluminum alloy single lap sheet splices with a single row of rivets?
• What tool is used for the installation of Cherrymax and Olympic-Lok rivets?
• What is the primary concern regarding the strength characteristics of type A rivets?
• How does the spacing of rivets affect the structural integrity of attached components?
• What must be done to D and DD series rivets if they are not driven within the prescribed time after heat treatment?
• Which type of rivet should be selected to join two sheets of .032-inch aluminum?
• What is one potential negative effect of aramid fiber composites when in contact with aluminum?
• What is the classification for high tensile strength fiberglass used in aircraft structures?
• What term describes the length of time that a catalyzed resin remains workable?
• In the context of bending sheet metal, what does "setback" refer to?
• What is required when fiberglass laminate damage extends completely through one facing and into the core?
• Which method is NOT suitable for repairing the first layer of fiberglass laminate?
• What is generally a critical factor when determining the performance of a riveted joint in stressed metal structures?
• What is the length of the rivets to be used for a sheet metal repair with two pieces of 0.040-inch aluminum?
• Which statement about rivets in aircraft construction is accurate?
• Which type of drill bit is most effective when drilling an aramid fiber (Kevlar) composite laminate?